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CCDB aims to combine existing data resources into an extensive central database that will be updated regularly by the community. Users and researchers are encouraged to contribute to the accuracy and completeness of the data in CCDB ...
به منظور مطالعه تنوع ژنتیکیبرخی از صفات زراعی و فیزیولوژیک و بررسی اثر تنش کم آبی روی آنها در 34 جمعیت از گونه Triticum boeoticumآزمایشی به صورت کرت-های خرد شده بر پایه بلوک-های کامل تصادفی در سه تکرار با در نظر گرفتن شرایط واجد و بدون تنش کم آبی در کرت-های اصلی و جمعیت-ها در کرت-های فرعی در ایستگاه تحقیقاتی دانشکده کشاورزی دانشگاه تبریز طی سال زراعی 90-1389 انجام شد. نتایج تجزیه واریانس بیانگر تفاوت معنی-دار بین جمعیت-ها در تمام صفات مورد بررسی و وجود تنوع ژنتیکی بین جمعیت-ها بود. عملکرد دانه و طول × عرض دومین برگ زیر سنبله در هر دو شرایط دارای بالاترین ضریب تنوع فنوتیپی و
Key Results Recombination in the gametes of the F₁ hybrids was at a level where it was possible to generate a genetic linkage map of Ae. speltoides. This was used to identify 294 wheat/Ae. speltoides introgressions. Introgressions from all seven linkage groups of Ae. speltoides were found, including both large and small segments. Comparative analysis showed that overall macro-synteny is conserved between Ae. speltoides and T. aestivum, but that Ae. speltoides does not contain the 4A/5A/7B translocations present in wheat. Aegilops speltoides has been reported to carry gametocidal genes, i.e. genes that ensure their transmission through the gametes to the next generation. Transmission rates of the seven Ae. speltoides linkage groups introgressed into wheat varied. A 100 % transmission rate of linkage group 2 demonstrates the presence of the gametocidal genes on this chromosome ...
Simple sequence repeat (SSR) motifs within 338,536 contigs of the line-specific assemblies were identified by MISA [39] under standard settings. Out of the five inbred lines, Lo225 was selected as reference dataset as it provided the highest number of SSR containing contigs. The MISA output of the four remaining lines was cross-matched with the Lo225 dataset to detect redundant SSRs. A non-redundant SSR dataset was generated by combining unique SSR motifs detected in Lo7, Lo152, Lo225, P87, and P105. Mononucleotide repeat motifs were discarded since monomer runs are known to be the most frequent sequencing errors in Roche/454 data. For experimental validation of in silico detected SSRs, primers flanking the SSR motifs were designed using Primer3 [40]. Amplification of the fragments was performed in Lo7, Lo225, P87, and P105 as they are the parents of two mapping populations. Thus, polymorphisms detected between Lo7 and Lo225 and/or P87 and P105 enable the genetic mapping of discovered SSRs. ...
Peusha, H. O., Stephan, U., Hsam, S. L. K., Felsenstein, F. G., Enno, T. M., Zeller, F. J. 1995: Identification of genes for resistance to powdery mildew in common wheat (Triticum aestivum L.). IV. Breeding lines derived from wide crosses of Russian cultivars with species T. timopheevii Zhuk., T. militinae Zhuk. et Migush., T. dicoccum (Schrank.) Schuebl., Aegilops speltoides Taush. Russian J. Genetics, 31, 1-7.. Identification of genes for resistance to powdery mildew in common wheat (Triticum aestivum L.). IV. Breeding lines derived from wide crosses of Russian cultivars with species T. timopheevii Zhuk., T. militinae Zhuk. et Migush., T. dicoccum (Schrank.) Schuebl., Aegilops speltoides Taush () 31 Russian J. Genetics : 1 -7.. ...
The sheer size of the wheat genome has been daunting in terms of whole genome sequencing. The Wheat genome is about five times the size of the human genome and hence was considered close to impossible to sequence. In Comparison to other important crop plants such as Soyabean and Rice, the difficulty of working with such a large genome has left wheat lagging behind in the race of genome sequencing. However, using advanced sequencing techniques employed by Roches 454 sequencers, the effort has managed to cover about 95% of the known wheat genes. The results of the study are now available for public use via Genbank, EMBL and CerealsDB. Nevertheless, there are those who warn that the gene map is far from complete and that the first high quality complete map data will be available only within five years. The full sequenced genome requires further read-throughs, assembly of the data into chromosomes and significant work to fully annotate the sequence data.. According to Dr. Neil Hall of the ...
Comparison of genome sequences of wild emmer wheat and Aegilops tauschii suggests a novel scenario of the evolution of rearranged wheat chromosomes 4A, 5A,
TY - JOUR. T1 - Comparative genomics of plant chromosomes. AU - Paterson, A. H.. AU - Bowers, J. E.. AU - Burow, M. D.. AU - Draye, X.. AU - Elsik, C. G.. AU - Jiang, C. X.. AU - Katsar, C. S.. AU - Lan, T. H.. AU - Lin, Y. R.. AU - Ming, R.. AU - Wright, R. J.. PY - 2000. Y1 - 2000. UR - http://www.scopus.com/inward/record.url?scp=0033784032&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0033784032&partnerID=8YFLogxK. U2 - 10.1105/tpc.12.9.1523. DO - 10.1105/tpc.12.9.1523. M3 - Article. C2 - 11006329. AN - SCOPUS:0033784032. VL - 12. SP - 1523. EP - 1539. JO - Plant Cell. JF - Plant Cell. SN - 1040-4651. IS - 9. ER - ...
Read Anther culture as an effective tool in winter wheat (Triticum aestivum L.) breeding, Russian Journal of Genetics on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Two intervarietal substitution lines of common wheat cv. Sava bearing chromosome 5B from Saratovskaya 29 and Diamant 2 donors and two near-isogenic lines (
Cumpara rapid si simplu Cafeluta de Cereale si Cicoare cu Vanilie. Cafeluta de Cereale si Cicoare cu Vanilie este un excelent energizant natural fara cofeina.
درک واکنش جوانه‏زنی بذر ژنوتیپ‏های زراعی به دما از دیدگاه زراعی حائز اهمیت است. ژنوتیپ‏هایی که در دماهای پایین جوانه‏زنی خود را آغاز می‏کنند می‏توانند برای موقعیت‏هایی (مانند کشت‏های دیرهنگام پاییزه) مفید باشند که جوانه‏زنی با دماهای کم همزمان می‏گردد. از این رو، مطالعة حاضر به منظور یافتن دماهای کاردینال، بررسی واکنش به دما و دامنة بردباری دمایی جوانه‏زنی بذر 12 رقم از گندم‏های مورد استفاده در شمال کشور انجام شد. علاوه بر این، تأثیر هفت دمای ثابت بین 5 و 37 درجه سانتی‏گراد بر ویژگی‏های جوانه‏زنی این ارقام ارزیابی گردید. دمای پایة (Tb) ارقام گندم مورد
However one thing we do know is that its fairly easy to mix DNA from different sources, even plants and animals, and after a bit of trial and error, have a successful product. We even know unusual chromosome counts can be supported successfully to create completely new classes of creatures. Mixing ape and human DNA is relatively easy once youve mapped the genes and allocated attributes. Fortunately, Stalins people had no clue about DNA. Unfortunately the world is full of well funded labs in the darkest (no pun intended) corners of the world where laws arent quite as strict as they are here in the US. In fact in many countries there are no laws whatsoever that address these issues and where they are a part of an internation agreement there is no active investigation and enforcement ...
LT: Triticum aestivum L. LT designated by Hitchcock in Amer. J. Bot. 10: 513. 1923; see also Hitchcock, Nom. Prop. Int. Bot. Congr. Cambridge (England) 1930: 121 (1929) ...
Fulgi de Secara Solaris sunt realizati din cereale integrale si au o valoare nutritiva deosebita. Prin tehnologia de fabricatie nu se modifica si nu se
Barley (Hordeum vulgare) is resistant to dwarf bunt of winter wheat (Triticum aestivum) caused by Tilletia controversa. Nine wheat-barley addition lines were utilized to determine which barley chromosomes and chromosome arms carry resistance genes. The lines included six disomic addition lines, WB1, WB2, WB3, WB4 WB6, and WB7, and three ditelosomic addition lines, WB5S (containing the short arm of barley chromosome 5), WB6S (containing the short arm of barley chromosome 6), and WB6L (containing the long arm of barley chromosome 6). These lines, their parent cultivars, and susceptible winter wheat cv. Wanser were inoculated with spores of T. controversa at the two-leaf stage. The barley parent, Betzes, showed no infection and only 5 of 401 heads of addition line WB6 were infected. Lines WB1, WB2, WB3, WB4, and WB7, and cvs. Wanser and Chinese Spring showed a high incidence of infection. WB6S had significantly lower bunt incidence (0 to 1 %) than WB6L or WB5S. Lines WB6L and WB5S had a high ...
Several molecular marker systems have been developed for assessing genetic diversity in crop germplasm collections. A trade-off often exists between the number of loci that can feasibly be sampled by a marker system and the amount of information provided by each locus. We compared the usefulness of two marker systems for revealing genetic diversity and population structure in cassava (Manihot esculenta Crantz): simple sequence repeats (SSRs) and diversity array technology (DArT) markers. DArTs survey many more loci per reaction than do SSRs; however, as bi-allelic, dominant markers, DArTs provide less polymorphism information per locus. Genetic differentiation was assessed in a randomly selected set of 436 cassava accessions, consisting of 155 African and 281 Latin American accessions. A genome-wide set of 36 SSR markers and a DArT array of approximately 1000 polymorphic clones were used to assess genetic diversity and differentiation. Cluster analyses were performed using principal coordinate ...
The chromosome karyotyping of insects included Lepidoptera is very difficult because of the large number of chromosomes, small size, and lack of major constriction structure. This has been a great hindrance to the karyological analysis. In this study, using banding analysis on the pachytene chromosomes, all chromosomes were characterized, and idiograms of Bombyx mori and R mandarina were established. From the testes during meiosis, 81 and 56 cells were examined for the analysis of B. mori and R mandarina, respectively. The best preparation of pachytene chromosomes was obtained on the 3(rd) day of the 3(rd) larva and 2(nd) or 3(rd) day of the 4(th) larva of the B. mori male, and it revealed that there was a characteristic nucleolus structure in the 2(nd) chromosomes, which was supposed to be the Z sex chromosome. The length of the pachytene chromosome was variable during the developmental stage of the cell, so the physical length of each chromosome was relatively converted in comparison to the ...
Major cereal crops including wheat (T. aestivum L.), maize (Zea mays L.), barley (Hordeum vulgare L.), and rice (O. sativa L.) belong to the grass family Poaceae. Comparisons of genetic maps and DNA sequences have suggested that these grass genomes originated from a common ancestor 50-60 million years ago (Bennetzen and Freeling 1993; Kellogg 1998) and have similar gene composition and colinearity (Ahn and Tanksley 1993; Ahn et al. 1993). The number of functional genes in these crop plants is not known. The number of genes in rice estimated from genome sequence analysis ranges from 32,000 to 50,000 (Goff et al. 2002). In hexaploid wheat, the gene number estimates range from 75,000 to 150,000, or ∼10,000-20,000 gene loci per homoeologous group (Sidhu and Gill 2004). Here we report physical mapping of ,2000 loci (10-20% of the total) for wheat homoeologous group 6. We also show the general distribution of genes on the chromosomes.. Deletion mapping revealed significant differences among group 6 ...
The 21 wheat chromosomes differ in absolute size and arm ratio (B. S. Gill et al. 1991). The expectation was that larger chromosomes would have a greater number of EST loci than the smaller chromosomes. Similarly, the long arms would have greater numbers of EST loci than the short arms within a chromosome. Both expectations were realized with some exceptions. Among the 21 chromosomes, 3B and 2B rank first and second in size and they also ranked first and second in number of EST loci, with 972 and 948 EST loci, respectively. Chromosome 1D is the smallest in size, yet chromosomes 6D (584 EST loci, ranked eighteenth on the basis of size) and 4B (612 EST loci, ranked eleventh on the basis of size) had the fewest number of EST loci. As a rule, the long arms had greater numbers of EST loci than the shorter arms (data not shown) and, among the long arms, 5BL is the longest and had the highest number of mapped EST loci (636).. Because individual chromosomes within a homoeologous group were assumed to ...
BackgroundHigh-throughput tools for pan-genomic study, especially the DNA microarray platform, have sparked a remarkable increase in data production and enabled a shift in the scale at which biological investigation is possible. The use of microarrays to examine evolutionary relationships and processes, however, is predominantly restricted to model or near-model organisms.Methodology/Principal FindingsThis study explores the utility of Diversity Arrays Technology (DArT) in evolutionary studies of non-model organisms. DArT is a hybridization-based genotyping method that uses microarray technology to identify and type DNA polymorphism. Theoretically applicable to any organism (even one for which no prior genetic data are available), DArT has not yet been explored in exclusively wild sample sets, nor extensively examined in a phylogenetic framework. DArT recovered 1349 markers of largely low copy-number loci in two lineages of seed-free land plants: the diploid fern Asplenium viride and the haploid moss
Diversity Array Technology (DArT), a technique for quickly generating large numbers of molecular markers, was established for two legume crops, soybean (Glycine max) and mungbean (Vigna radiata). For each crop, two genomic complexity reduction methods, utilizing PstI/TaqI and PstI/BstNI restriction digests, were selected for DNA clonal library development and for the isolation in each case of 7,680 DArT clones from genomic representations of pooled DNA samples. While the PstI/BstNI method produced more polymorphic clones than PstI/TaqI for the soybean library, there was no significant difference between the two methods for the mungbean library. Polymorphism frequencies in mungbean were around twice those in soybean, reflecting greater diversity in the mungbean samples. Even so, there were still nearly 1,500 unique polymorphic clones identified for soybean. The DArT marker transferability from soybean to mungbean (13.6%) was nearly five times higher than that from mungbean to soybean (3.1%). The ...
Hexaploid oat (Avena sativa L., 2n = 6x = 42) is a member of the Poaceae family and has a large genome (similar to 12.5 Gb) containing 21 chromosome pairs from three ancestral genomes. Physical rearrangements among parental genomes have hindered the development of linkage maps in this species. The objective of this work was to develop a single high-density consensus linkage map that is representative of the majority of commonly grown oat varieties. Data from a cDNA-derived single-nucleotide polymorphism (SNP) array and genotyping-by-sequencing (GBS) were collected from the progeny of 12 biparental recombinant inbred line populations derived from 19 parents representing oat germplasm cultivated primarily in North America. Linkage groups from all mapping populations were compared to identify 21 clusters of conserved collinearity. Linkage groups within each cluster were then merged into 21 consensus chromosomes, generating a framework consensus map of 7202 markers spanning 2843 cM. An additional ...
This paper describes a series of winter wheat - winter barley disomic addition lines developed from hybrids between winter wheat line Triticum aestivum L. Martonvásári 9 kr1 and the German 2-rowed winter barley cultivar Hordeum vulgare L. Igri. The barley chromosomes in a wheat background were identified from the fluorescent in situ hybridization (FISH) patterns obtained with various combinations of repetitive DNA probes: GAA-HvT01 and pTa71-HvT01. The disomic addition lines 2H, 3H, and 4H and the 1HS isochromosome were identified on the basis of a 2-colour FISH with the DNA probe pairs GAA-pAs1, GAA-HvT01, and pTa71-HvT01. Genomic in situ hybridization was used to confirm the presence of the barley chromosomes in the wheat genome. The identification of the barley chromosomes in the addition lines was further confirmed with simple-sequence repeat markers. The addition lines were also characterized morphologically. ...
Detail záznamu - An Improved Consensus Linkage Map of Barley Based on Flow-Sorted Chromosomes and Single Nucleotide Polymorphism Markers - Detail záznamu - Knihovna Akademie věd České republiky
WRKY transcription factors are involved in multiple aspects of plant growth, development and responses to biotic stresses. Although they have been found to play roles in regulating plant responses to environmental stresses, these roles still need to be explored, especially those pertaining to crops. Durum wheat is the second most widely produced cereal in the world. Complex, large and unsequenced genomes, in addition to a lack of genomic resources, hinder the molecular characterization of tolerance mechanisms.This paper describes the isolation and characterization of five TdWRKY genes from durum wheat (Triticum turgidum L. subsp. Durum). A PCR-based screening of a T. turgidum BAC genomic library using primers within the conserved region of WRKY genes resulted in the isolation of five BAC clones. Following sequencing fully the five BACs, fine annotation through Triannot pipeline revealed 74.6% of the entire sequences as transposable elements and a 3.2% gene content with genes organized as islands within
Due to the high polymorphisms between synthetic hexaploid wheat (SHW) and common wheat, SHW has been widely used in genetic studies. The transferability of simple sequence repeats (SSR) among common wheat and its donor species, Triticum turgidum and Aegilops tauschii, and their SHW suggested the possibility that some SSRs, specific for a single locus in common wheat, might appear in two or more loci in SHWs. This is an important genetic issue when using synthetic hexaploid wheat population and SSR for mapping. However, it is largely ignored and never empirically well verified. The present study addressed this issue by using the well-studied SSR marker Xgwm261 as an example. The Xgwm261 produced a 192 bp fragment specific to chromosome 2D in common wheat Chinese Spring, but generated a 176 bp fragment in the D genome of Ae. tauschii AS60. Chromosomal location and DNA sequence data revealed that the 176 bp fragment also donated by 2B chromosome of durum wheat Langdon. These results indicated that ...
The annual allotetraploid species Aegilops geniculata harbors a number of traits relevant for wheat improvement. An effective cytogenetic method has yet to be developed to distinguish between each of its 14 chromosomes. A fluorescence in situ hybridization (FISH) approach was adopted to describe the karyotype of Ae. geniculata. Each of its 14 chromosomes was unequivocally recognized using a cocktail of three probes, namely pTa-713, (AAC)5 and pTa71. FISH karyotyping was then used to detect and characterize selections from an Ae. geniculata × bread wheat wide cross of a chromosome 1Mg disomic addition line and three 4Mg(4B) substitution lines. The identity of the addition line was confirmed by the presence of Glu-M1, detected both using an SDS-PAGE separation of endosperm proteins and by applying a PCR assay directed at the Glu-M1 locus. The status of the substitution lines was validated by genotyping using a wheat single nucleotide polymorphism chip. FISH karyotyping based on pTa-713, (AAC)5 and pTa71
18-26S rDNA loci were mapped on chromosomes in four species of Paris, and the number and position of rDNA sites in these species were compared for analysis of the distribution of the sites. All the plants were diploids, and the genome consisted of five chromosomes, A, B, C, D and E. (1) P. polyphylla var. yunnanensis, 2n = 10 = 6m + 4t. Two 18-26S rDNA loci were detected on the short arms of C and D chromosomes; (2) P. forrestii, 2n = 10 = 6m + 4t. One locus was detected on the long arm of B chromosome, and also two loci on the short arms of C and D chromosomes; (3) P. axialis. 2n = 10 = 6m(2sat) + 4t(2sat) + 1 - 2B. Two loci were detected on the short arms of C and D chromosomes. One locus was detected in the cell with two B-chromosomes (B), but none was detected in that with only one B chromosome, indicating that rRNA gene existed on B chromsome, and an unequal division occurred during mitotic cycle of B-chromosomes. (4) P. daliensis, 2n = 10 = 4m + 2sm + 2st + 2t. One locus was detected on ...
Tytuł projektu: Udostępnianie cyfrowe zasobów polskich czasopism z nauk przyrodniczych i rolniczych w bazie AGRO. Nr umowy: POPC.02.03.01-00-0038/18-00 (okres realizacji 2018-2021). Kwota dofinansowania: 7 442 980,00 z. W ramach Programu Operacyjnego Polska Cyfrowa na lata 2014-2020, Oś Priorytetowa nr 2 E-administracja i otwarty rząd Działanie nr 2.3 Cyfrowa dostępność i użyteczność informacji sektora publicznego Poddziałanie nr 2.3.1 Cyfrowe udostępnienie informacji sektora publicznego ze źródeł administracyjnych i zasobów nauki (typ projektu: cyfrowe udostępnienie zasobów nauki) Instytucja Finansująca: Centrum Projektów Polska Cyfrowa ...
Disomic alien addition lines (DAALs, 2n=42) were obtained from an intersubgeneric cross between Glycine max [L.] Merr. cv. Dwight (2n=40, G1G1) and Glycine tomentella Hayata (PI 441001, 2n=78, D3D3CC). They are morphologically uniform but distinct from either of the parents. These DAALs were all derived from the same monosomic alien addition line (MAAL, 2n=41), and theoretically they should breed true because they had a pair of homologous chromosomes from G. tomentella and 40 soybean chromosomes. However, in some selfed progenies of DAALs the extra G. tomentella chromosomes were eliminated resulting in plants with 2n=40 chromosomes. These progeny lines (2n=40) have a wide variation in phenotypes. The objective of this research was to document the phenotypic and chromosomal variation among the progeny of these DAALs, and to understand the genetics behind this phenomenon. In the replicated field study, variation was observed among the disomic progenies for the qualitative traits such as flower, ...
A field experiment was conducted at the Seed and Plant Improvement Institute Research Field Station in Karaj, Iran, during the 2009-10 and 2010-11 growing seasons to estimate genetic progress and the variation in penological and agronomic characteristics in 13 irrigated facultative/winter bread wheat (Triticum aestivum L.) cultivars released in Iran between 1943 and 2011. Trends of temporal variation of the traits measured revealed that grain yield and some related phonological and agronomic traits have increased in the more recently released cultivars. Thousand grain weight decreased slightly compared to older cultivars. Number of days to heading and anthesis decreased in new cultivars, butgrain-filling period and days to physiological maturity did not change. Spike length also increased but plant height decreased in more recently released cultivars. These changes may explain the increase in grain yield of newly released facultative/winter bread wheat cultivars.
Triticum turgidum (Rivet wheat). This species is an annual grass which has solid stems. The medium green leaves are flat and about 16mm. The glumes are yellow-brown.
The prophylactic treatment adopted was as follows for the period 15 August 1934 to 15 January 1935, the duration of the experiment:. The population of the village was divided into two lots of 135 subjects. The first lot (lot A) took a gametocidal treatment from 15 August 1934: 2 cg. of Praequine daily for five days, taken half an hour before the morning meal. This gametocidal treatment was repeated every two months, thus three times in total during the experiment.. At the same time and after the gametocidal treatment, lot A received preventive treatment with quinine chlorhydrate (o g. 50 (sic) every day for six out of seven days, taken half an hour before the meal).. The second lot (lot B) took the same gametocidal treatment as lot A. At the same time and after the gametocidal treatments, lot B received 10 cg. of Quinacrine every day for four days out of seven and this throughout the duration of the experiment.. Translation by Ulrich Tröhler. ...
After testing several genome complexity reduction methods we identified the PstI/TaqI method as the most effective for Eucalyptus and developed 18 genomic libraries from PstI/TaqI representations of 64 different Eucalyptus species. A total of 23,808 cloned DNA fragments were screened and 13,300 (56%) were found to be polymorphic among 284 individuals. After a redundancy analysis, 6,528 markers were selected for the operational array and these were supplemented with 1,152 additional clones taken from a library made from the E. grandis tree whose genome has been sequenced. Performance validation for diversity studies revealed 4,752 polymorphic markers among 174 individuals. Additionally, 5,013 markers showed segregation when screened using six inter-specific mapping pedigrees, with an average of 2,211 polymorphic markers per pedigree and a minimum of 859 polymorphic markers that were shared between any two pedigrees ...
BackgroundSesame is an important oil crop widely cultivated in Africa and Asia continent. Characterization of genetic diversity and population structure of sesame genotypes in these continents can be used to designing breeding methods. In the present study, 300 sesame g...
Citation: AKHUNOV, E.D., LAZO, G.R., CHAO, S., ANDERSON, O.D., GUSTAFSON, J.P., WALKER-SIMMONS, M.K., STEBER, C.M. THE ORGANIZATION AND RATE OF EVOLUTION OF THE WHEAT TRANSCRIPTOME ARE CORRELATED WITH RECOMBINATION RATES ALONG CHROMOSOME ARMS. GENOME RESEARCH. 2003. V. 13(5). P. 753-763. Interpretive Summary: Wheat is one of the most important crops both within the U.S. and worldwide. Development of new and improved varieties into the future will depend on the basic knowledge of the organization and function of the genes found on the wheat chromosomes. This paper describes relationships between wheat chromosome structure and the exchange of genetic information through recombining gene and chromosome segments and the distribution and fate of duplicated genes. It was found the the fastest changing portions of the wheat chromosomes are the distal ends of the chromosomes - regions where gene duplication and DNA exchange between chromosomes is occurring the most rapidly. The paper also discusses the ...
The CC genome wild species, Oryza rhizomatis, possesses valuable traits for rice improvement. Unlike other CC genome wild rice, O. rhizomatis is less studied and none of the research has focused on the utilization of this resource in rice breeding. The transfer of novel genes governing the valuable traits from O. rhizomatis is difficult due to high genome incompatibility with O. sativa. Here we report the development of backcross progenies and complete sets of monosomic alien addition lines (MAALs) for the first time from O. rhizomatis in O. sativa line IR31917-45-3-2. Autotetraploid IR31917-45-3-2 (4x = AAAA) was used to generate allotriploid F-1, and the F-1 plant was backcrossed to IR31917-45-3-2 (2x). Forty-seven BC1F1 and 73 BC2F1 plants were produced with chromosome numbers ranging from 24 to 33 (2x + 9) and 24 to 27 (2x + 3), respectively. A complete set of MAALs were identified by morphological, cytological and marker-based analysis. A total of 116 CC genome-specific InDel markers across ...
Secale cereale cv. Dongmu 70 was evaluated in two sites in Qinba mountain areas in 1998. S.cereale cv. Dongmu 70 showed good… Expand ...
Gramene genetic diversity database holds SSR and SNP allelic data and passport descriptions for rice, maize, and wheat germplasms.
Investigations in wheat (Triticum aestivum L. em Thell) using molecular and conventional breeding techniques for abiotic and biotic ...
Wow, I count 14 question marks in one post. Is that a record?. Ill try to hit as many of the question marks as possible.. 1. So wouldnt the first human (with 46) have significant trouble reproducing? Not necessarily. Research has been performed to investigate just this question and found that fertility is effected only minimally. Essentially, it turns out that some centromeres are better at attracting the kinetochore machinery than others and thus outcompete the neighboring centromere for resources [a]. Thus, even in the case of a fusion, only one centromere will remain active.. 2. Could he or she reproduce with an ape mate? No. Nor would they likely be interested in doing so - any more than you are interested in mating with a gorilla. When a chromosomal fusion occurs in one individual human, they would look no different than any other human. All the same genes are still there, being expressed the same way. When the fusion of chromosomes 12 and 13 occurred in the human lineage, nobody would ...
Wow, I count 14 question marks in one post. Is that a record?. Ill try to hit as many of the question marks as possible.. 1. So wouldnt the first human (with 46) have significant trouble reproducing? Not necessarily. Research has been performed to investigate just this question and found that fertility is effected only minimally. Essentially, it turns out that some centromeres are better at attracting the kinetochore machinery than others and thus outcompete the neighboring centromere for resources [a]. Thus, even in the case of a fusion, only one centromere will remain active.. 2. Could he or she reproduce with an ape mate? No. Nor would they likely be interested in doing so - any more than you are interested in mating with a gorilla. When a chromosomal fusion occurs in one individual human, they would look no different than any other human. All the same genes are still there, being expressed the same way. When the fusion of chromosomes 12 and 13 occurred in the human lineage, nobody would ...
INTRODUCTION. Wheat (Triticum spp.) is an autogamous plant with perfect flowers producing limited amounts of pollen, and it is characterized by a relatively short period of gynoecium receptivity. Genetic improvement of wheat has been a matter of considerable concern through the years, mainly to increase yields, minimize losses due to unfavorable environmental conditions, and develop resistance to pests and diseases (Pingali and Rajaram, 2000).. With 8,000 years of history, wheat is the main cereal in the diet of mankind. Its global production is currently 640 million tons a year, and production has increased in accordance with the increase in population. In the last fifty years. wheat production had increased nearly 1% per year. This is due to technological advances in genetically more productive cultivars and the adoptionof bettercultivationpractices. By 2025. it is expected that a yearly increase in yield of about 2.5% will be required to meet the needs of a growing population demanding more ...
Hello All I have list of genes i want to know which all genes will make one chromosome segments So For example i have gene A , B , C , D i want for example A,B, C forming one stretch of chromosome segment (1p15.1p20) 1p15.1p.20 will make one segment. If i have ramdom gene name i want which genes will fall in one stretch of segments.. ...
Maize B-A translocations result from reciprocal interchanges between a supernumerary B chromosome and an arm of an essential A chromosome. Because of the freque
«Collinearity» In geometry, collinearity is a property of a set of points, specifically, the property of lying on a single line. A set of points with this property is ...
Hsam, S.L.K., Lapochkina, I.F., Zeller, F.J. 2003. Chromosomal location of genes for resistance to powdery mildew in common wheat ( Triticum aestivum L. em Thell.). 8. Gene Pm32 in a wheat- Aegilops speltoides translocation line. Euphytica. ...
Some of these are Heritage Wheats that go back to the 1700s. They are all modern wheat types in that they shed their hulls easily and can be easily threshed without equipment. They are all the same species, Triticum aestivum, while the truly ancient wheats are other species ...
The [email protected] Centre provides a platform for research students to deposit their Ph.D. theses and make it available to the entire scholarly community in open access ...
Pleiotropic effects are one of the main concerns regarding genetically modified organisms (GMOs). This includes unintended side effects of the transgene or its genome insertion site on the regulation of other endogenous genes, which could potentially cause the accumulation of different secondary met …
Lillian Gish, whose portrayals of fragile innocence graced the golden age of silent films and eventually extended into an eight-decade screen career, a testament to perpetuity that could last
If youve ever thought to look at the darts -especially bodice darts- on better quality ready-to-wear, youll notice the darts are sewn and the excess fabric (from the fold line of the dart) has been removed. Contrary to the statements of others, the sewers do not sew the seams and then trim the fabric away to match. If a stitcher did that -or had to do that- either the stitcher or the pattern maker should be fired, the latter preferably. Okay, maybe thats a little harsh but you get the idea. Stitchers arent allowed to trim anything. They are only allowed to clip seams and corners. They shouldnt have to do it either, theyre not paid for cutting when that could have been done most accurately by the cutting department. The trimming of that dart best serves everyones interests if the pattern was cut with the excess removed from the outset. If the pattern has not been trimmed accordingly, the fabric subsequently then the darts are not trimmed away after completion by the stitchers either. ...
Pro-line darts encompass a modern, sporty look combined with a classic streamlined barrel design. Featuring the most tried and tested groove pattern, these darts are perfectly weighted and overlaid with our signature Onyx coating.
Pro-line darts encompass a modern, sporty look combined with a classic streamlined barrel design. Featuring the most tried and tested groove pattern, these darts are perfectly weighted and overlaid with our signature Onyx coating.
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ಆಹಾರ ಧಾನ್ಯೊಡ್ ಒ೦ಜಿ ಧಾನ್ಯ ಗೋಧಿ. ಕನ್ನಡೊಡ್ ಗೋಧಿ ಪನ್ಪೆರ್. ಇ೦ಗ್ಲಿ‍‍‍ಶುಡು Wheat ಪನ್ಪೆರ್. ಉ೦ದು ತೂವರೆಗ್ ಕೆಸರಿ ಕ೦ದು ಬಣ್ಣ ಇಪ್ಪು೦ಡು. ನೆತ್ತ ವೈಜ್ಞಾನಿಕ ಪುದರ್ Triticum spp. ಪ೦ಜಾಬುಡು ಗೋಧಿನು ಜಾಸ್ತಿ ಬುಳೆಪೆರ್. ಅತ್ತಾವ್೦ದೆ ಗೋಧಿನ್ ಬಿಸ್ಕಿೞ್ ತಯಾರ್ ಮಲ್ಪರೆ, ಬೊಕ್ಕ ಕೋರಿಗ್, ಪೆತ್ತಗು ಆಹಾರ ತಯಾರ್ ಮಲ್ಪೆರೆ ಉಪಯೋಗಿಸುವೆರು. ಗೋಧಿ ತಿನ್ನು೦ಡ ಶರೀರ ಗಟ್ಟಿ ಆಪು೦ಡ್. ...