TY - JOUR. T1 - RNA commutes to work. T2 - Regulation of plant gene expression by systemically transported RNA molecules. AU - Ueki, Shoko. AU - Citovsky, Vitaly. PY - 2001/12/1. Y1 - 2001/12/1. N2 - Although long-distance movement of endogenous mRNAs in plants is well established, the functional contributions of these transported RNA molecules has remained unclear. In a recent report, Kim et al. showed that systemically transported mRNA is capable of causing phenotypic change in developing tissue. Here, this finding and its significance are reviewed and discussed in detail. In addition, in order to give proper perspective, long-distance transport of other types of RNAs, e.g., RNA elicitors of post-transcriptional gene silencing and RNA genomes of plant viruses, and its possible regulation are discussed.. AB - Although long-distance movement of endogenous mRNAs in plants is well established, the functional contributions of these transported RNA molecules has remained unclear. In a recent report, ...
A method for making a genetically modified plant comprising regenerating a whole plant from a plant cell that has been transfected with DNA sequences comprising a first gene whose expression results in an altered plant phenotype linked to a transiently active promoter, the gene and promoter being separated by a blocking sequence flanked on either side by specific excision sequences, a second gene that encodes a recombinase specific for the specific excision sequences linked to a repressible promoter, and a third gene that encodes the repressor specific for the repressible promoter. Also a method for making a genetically modified hybrid plant by hybridizing a first plant regenerated from a plant cell that has been transfected with DNA sequences comprising a first gene whose expression results in an altered plant phenotype linked to a transiently active promoter, the gene and promoter being separated by a blocking sequence flanked on either side by specific excision sequences to a second plant regenerated
Triticum monococcum aegilopoides is a ANNUAL growing to 1 m (3ft 3in). It is not frost tender. It is in flower from Jun to July, and the seeds ripen from Aug to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Wind.Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil.
Citation: Brooks, S.A., Huang, L., Herbel, M.N., Gill, B.S., Brown-Guedira, G., Fellers, J.P. 2006. Structural variation and evolution of a defense-gene cluster in natural populations of Aegilops tauschii. Theor. Appl. Genet. 112:618-626. Interpretive Summary: Technical Abstract: Genetic mapping and sequencing of plant genomes have been useful for investigating eukaryotic chromosome structural organization. In man cases analyses have been limited in the number of representatives sampled from specific groups. The degree of intraspecific genome diversity remains in question, and it is possible that a single model genome may have limited utility for identifying genes in related members of the species or genus. Genes of particular interest for crop-plant improvement are disease resistance genes that are harbored by wild relatives of modern cultivated crops. The genes are evolutionarily dynamic and under selective pressure by a broad range of pathogenic organisms. Using resistance gene analogs as ...
My research interests focus on the regulation of plant gene expression in response to abiotic stress and extreme environments, with particular interest in chromatin structure, genome organization and epigenetic change. Venues associated with spaceflight provide an opportunity to explore plant genomic responses to an environment that is outside the evolutionary experience of terrestrial organisms. This unique platform presents a background by which adaptive metabolisms can be observed as they are crafted to cope with a stress de novo; providing a window into the origins of adaptive processes.. ...
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(Phys.org)-Since 2007, researchers at the BioEnergy Science Center, one of three Department of Energy-funded research centers, have partnered to figure out how to break down plants so that they easily release the simple ...
Background: Triticum monococcum (2n) is a close ancestor of T. urartu, the A-genome progenitor of cultivated hexaploid wheat, and is therefore a useful model for the study of components regulating photomorphogenesis in diploid wheat. In order to develop genetic and genomic resources for such a study, we constructed genome-wide transcriptomes of two Triticum monococcum subspecies, the wild winter wheat T. monococcum ssp. aegilopoides (accession G3116) and the domesticated spring wheat T. monococcum ssp. monococcum (accession DV92) by generating de novo assemblies of RNA-Seq data derived from both etiolated and green seedlings. Principal Findings: The de novo transcriptome assemblies of DV92 and G3116 represent 120,911 and 117,969 transcripts, respectively. We successfully mapped ~90% of these transcripts from each accession to barley and ~95% of the transcripts to T. urartu genomes. However, only ~77% transcripts mapped to the annotated barley genes and ~85% transcripts mapped to the annotated T. ...
DEKALB Genetics Corporation, the fastest growing agricultural seed company in the U.S., has an opening for an independent PhD level scientist in the area of PLANT GENE EXPRESSION. The successful candidate will join the Agronomic Traits Program of DEKALBs biotechnology research facility in Mystic, CT, a scenic shoreline community on Long Island Sound. The research focus of the position will be aimed towards understanding and manipulating factors that affect the expression of transgenes in plants, identifying suitable promoters and enhancers, and employing this technology in the development of transgenic plant products. Other responsibilities may include cloning agronomically important genes. Candidates should have a Ph.D. in a relevant biological science, more than three years experience in plant molecular biology and demonstrated expertise in the area of plant gene expression. Post-doctoral experience is preferred. In addition to a stimulating scientific environment, DEKALB offers excellent ...
TY - CHAP. T1 - Analysis of Plant Gene Expression Using Flow Cytometry and Sorting. AU - Galbraith, David W. PY - 2007/5/21. Y1 - 2007/5/21. KW - Analysis of plant gene expression. KW - Combining flow and image cytometry. KW - Defining cellular states. KW - Flow cytometry. KW - Flow sorting. KW - Methods. KW - Technologies. KW - Use of protoplasts for confirmatory studies. UR - http://www.scopus.com/inward/record.url?scp=46449131685&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=46449131685&partnerID=8YFLogxK. U2 - 10.1002/9783527610921.ch17. DO - 10.1002/9783527610921.ch17. M3 - Chapter. AN - SCOPUS:46449131685. SN - 9783527314874. SP - 405. EP - 422. BT - Flow Cytometry with Plant Cells: Analysis of Genes, Chromosomes and Genomes. PB - Wiley-VCH Verlag GmbH & Co. KGaA. ER - ...
Author: Engelhorn, J.; Genre: Thesis; Published in Print: 2011; Title: Identification of developmental functions for Arabidopsis thaliana genes by a reverse genetics approach based on analysis of H3K27me3 distribution
Variation in morphological traits in evolution can be achieved by different routes, which include, but are not limited to, changes in a transcription factors expression pattern, biochemical properties (DNA binding properties or the ability to interact with other protein partners), and/or array of targets, either by recruitment of new targets, or loss of old targets. Currently, there is some debate surrounding the relative significance of cis-regulatory mutations versus mutations in coding regions of genes to drive morphological evolution (Hoekstra and Coyne, 2007; Wray, 2007). The data presented here hint that both mechanisms likely have been employed in the evolution of the KNOX1 and FLO/LFY pathways governing compound leaf development in the legumes.. We compared KNOX1 downregulation at the leaf initiation site in both early-diverging and more recently diverged clades in the Fabaceae and found that in all cases, including members of the IRLC, KNOX1 proteins are downregulated at P0. This ...
|p| Model plants for genetic studies are very important among all other plant species living on our planet. Models, as whole plant grown from seed as well as tissue or cellular culture, help researchers to study genetics of key biological phenomena, processes and characteristics that are useful for understanding the consequences of natural mutations, adaptation of plants to the harsh environment or changing climate, plant ecology and evolution as well as polyploidization. Knowledge gained in studying model plants for key characteristics of interest can be generally translated in other plant species with the knowledge that many key cellular and molecular processes are conserved and regulated by ‘blueprint’ genes inherited from common ancestor.|/p| |p| In this Model Organisms in Plant Genetics book we invite but not limited to chapters describing primitive, remnant, nonflowering, flowering, non-flowering, emerging model plant species for genetic studies and translation of gained
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 ...
The teosinte branched1 (tb1) gene is a major QTL controlling branching differences between maize and its wild progenitor, teosinte. The insertion of a transposable element (Hopscotch) upstream of tb1 is known to enhance the genes expression, causing reduced tillering in maize. Observations of the maize tb1 allele in teosinte and estimates of an insertion age of the Hopscotch that predates domestication led us to investigate its prevalence and potential role in teosinte. We assessed the prevalence of the Hopscotch element across an Americas-wide sample of 837 maize and teosinte individuals using a co-dominant PCR assay. Additionally, we calculated population genetic summaries using sequence data from a subset of individuals from four teosinte populations and collected phenotypic data using seed from a single teosinte population where Hopscotch was found segregating at high frequency. Genotyping results indicate the Hopscotch element is found in a number of teosinte populations and linkage disequilibrium
Empty clones: 1.33 %. Hybridization with labeled total DV92 DNA showed that all the other BAC clones have wheat DNA. 85% of the Not I fragments showed strong hybridization signal suggesting the presence of repetitive sequences.. ...
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Crops obtained by plant breeding technique mutagenesis should fall under laws restricting the use of genetically modified organisms (GMOs), Europe
Is your compound leaf pinnate or palmate? And if its pinnate, is it pinnate odd, pinnate even, or twice pinnate? Find the answers easily with this illustrated guide.
The Plants Database includes the following 1 variety of Zea mays ssp. parviglumis . Click below on a thumbnail map or name for variety profiles ...
Plant Breeding Reviews presents state-of-the-art reviews on plant genetics and the breeding of all types of crops by both traditional means and molecular...
cDNAs were cloned to one host mRNA induced by a compatible virus-plant interaction and several host mRNAs induced by an incompatible virus-plant interaction. Regulatory sequences in two of the...
Here we will provide information on the various plant species that we have worked with in our research or may offer for sale from our store.
Classification for Kingdom Plantae Down to Species Gossypium hirsutum L. Click on names to expand them, and on P for PLANTS profiles ...
A gene from wild Indian rice plants can significantly raise the yield of common varieties in nutrient-poor soils by boosting root growth.
Spikelet ± sessile to stalked, breaking below glumes, falling as 1 unit; glumes ± equal or lower , upper, lower 1-veined, upper 1 3-veined; floret 1, slightly , or , glumes, bisexual; axis generally prolonged behind palea, short, bristle-like; lemma faintly 3 5-veined, short-awned just below acute tip, or awnless; palea ± , lemma; stamens 1 ...
Rice is one of the most important crops worldwide and is widely used as a model plant for molecular studies of monocotyledonous species. The plant hormone ...
File Title: Compensating effects and gene action estimates for the components of grain yield in winter wheat (Triticum aestivum, L. em Thell ...
Pistacia khinjuk (Stocks) is a native species that, along with P. atlantica, is widely distributed from eastern to western Iran through the Makran Zone, Zagros Mountains and the Sanandaj-Sirjan Zone, ranging from 50 to 3300 m above sea level. The identification of resistance gene analogs holds great promise for developing resistant plants. A PCR approach with degenerate primers designed from conserved nucleotide binding site-leucine rich repeat (NBS-LRR) regions of known disease resistance (R) genes was used to amplify and clone homologous sequences from P. khinjuk. The primers resulted in amplicons with an expected size of 500 bp. The nucleotide sequence of three amplicons was obtained through sequencing their predicted amino acid sequences compared to each other and to the amino acid sequences of known R-genes revealed significant sequence similarity. Alignment of deduced amino acid sequence of P. khinjuk resistance gene analogs (RGAs) showed strong identity (42-60%) to NBS-LRR proteins R-gene
The present investigation was undertaken with a view of expedition of putative restorers for the development of high yielding rabi sorghum hybrids. Three CMS line were tested with ten restorers in line × tester mating design to evaluate seed set per cent and fertility restoration behavior. Restorers AKRB-335-3, Rb-413-1, AKRB-428, AKRB-429, AKRB-430 and AKRB-431 exhibited high fertility restoration ability in the CMS lines and therefore, hybrids viz. AKMS 30A×AKRB-335-3, AKMS 30A×AKRB-428, AKMS 30A×Rb-413-1, AKMS 30A×AKRB-429, AKMS 30A×AKRB-430, AKMS 30A×AKRB-431, AKRMS 45A×AKRB-335-3, AKRMS 45A×AKRB-428 and AKRMS 45A×Rb-413-1 showed high seed set percentage with anther fertility rating (9.0). The inheritance of fertility restoration revealed that observed frequency fits well into Mendelian ration of 3:1 for seed setting indicates that fertility restoration is governed by single dominant gene. Cluster analysis differentiate thirty hybrids in three classes, fully fertile revealed that ...
New DNA Sequences ======================= AC013430 AC013430 88172bp DNA HTG 11-NOV-1999 Arabidopsis thaliana chromosome 1 clone F3F9, WORKING DRAFT SEQUENCE, 6 unordered pieces. HTG; HTGS_PHASE1. ATF11C1 AL132976 105644bp DNA PLN 12-NOV-1999 Arabidopsis thaliana DNA chromosome 3, BAC clone F11C1 ATF15G16 AL132959 104868bp DNA PLN 12-NOV-1999 Arabidopsis thaliana DNA chromosome 3, BAC clone F15G16 ATF18N11 AL132953 91275bp DNA PLN 12-NOV-1999 Arabidopsis thaliana DNA chromosome 3, BAC clone F18N11 ATF1P2 AL132955 101154bp DNA PLN 12-NOV-1999 Arabidopsis thaliana DNA chromosome 3, BAC clone F1P2 ATF24B22 AL132957 100285bp DNA PLN 12-NOV-1999 Arabidopsis thaliana DNA chromosome 3, BAC clone F24B22 ATF24M12 AL132980 129515bp DNA PLN 12-NOV-1999 Arabidopsis thaliana DNA chromosome 3, BAC clone F24M12 ATF2A19 AL132962 95993bp DNA PLN 12-NOV-1999 Arabidopsis thaliana DNA chromosome 3, BAC clone F2A19 ATF2K15 AL132956 130956bp DNA PLN 12-NOV-1999 Arabidopsis thaliana DNA chromosome 3, BAC clone F2K15 ...
Citation: Liu, Z., Feng, S., Pandey, M.K., Chen, X., Culbreath, A.K., Varshney, R.K., Guo, B. 2013. Identification of expressed resistance gene analogs from peanut (Arachis hypogaea L.) expressed sequence tags. Journal of Integrative Plant Biology. 55(5):453-461. Interpretive Summary: Peanut production and seed quality are severely constrained by a wide variety of diseases. The most promising solution for managing peanut diseases is using resistant cultivars. A high yielding cultivar with disease resistance would present tremendous advantages for peanut farmers to fight the diseases. The objective of this study was to identify expressed resistance gene analogs (RGAs) from peanut expressed sequence tags (ESTs) for marker development. By using known R gene protein sequences to screen peanut ESTs, 385 unigenes were identified as peanut expressed RGAs. A total of 28 simple sequence repeats (SSRs) were identified from 25 expressed RGAs. One SSR marker of RGA121 and two PCR-based markers, Ahsw-1 and ...
calphotos.berkeley.edu. Arabidopsis thaliana (Mouse-ear cress) is a flowering plant belonging to the family Brassicaceae which contains economically important brassica and mustard species. Arabidopsis thaliana was the first plant to have its genome sequenced. Arabidopsis thaliana is not of economic value itself, but has risen to prominence because of its small size, short generation time and small genome, which make it an ideal plant to use for research. The Arabidopsis thaliana genome has a haploid chromosome number of 5, containing 135 Mb with 32,000 protein-coding genes. The reference proteome is derived from the genome sequence published in 2000 for the ecotype Columbia (http://www.nature.com/nature/journal/v408/n6814/full/408796a0.html). ...
Rice, Oryza sativa L., is one of the most important crops in the world. With the rising world population, feeding people in a more sustainable and environment-friendly way becomes increasingly important. Therefore, rice research community needs to share resources to better understand functions of rice genes that are the foundation for future agricultural biotechnology development, and one way to achieve this goal is via the extensive study of insertional mutants.|br| We have constructed a large rice insertional mutant population in a japonica rice variety, Tainung 67. The collection contains about 93,000 mutant lines, among them 85% with phenomics data and 65% with flanking sequence data. We screened the phenotypes of 12 individual plants for each line grown under field conditions according to 68 subcategories and 3 quantitative traits. Both phenotypes and integration sites are searchable in the database at Taiwan Rice Insertional Mutants Database (http://trim.sinica.edu.tw).|br| Detailed analyses of
Rice, Oryza sativa L., is one of the most important crops in the world. With the rising world population, feeding people in a more sustainable and environment-friendly way becomes increasingly important. Therefore, rice research community needs to share resources to better understand functions of rice genes that are the foundation for future agricultural biotechnology development, and one way to achieve this goal is via the extensive study of insertional mutants.|br| We have constructed a large rice insertional mutant population in a japonica rice variety, Tainung 67. The collection contains about 93,000 mutant lines, among them 85% with phenomics data and 65% with flanking sequence data. We screened the phenotypes of 12 individual plants for each line grown under field conditions according to 68 subcategories and 3 quantitative traits. Both phenotypes and integration sites are searchable in the database at Taiwan Rice Insertional Mutants Database (http://trim.sinica.edu.tw).|br| Detailed analyses of
Description of disease Arabidopsis thaliana. Treatment Arabidopsis thaliana. Symptoms and causes Arabidopsis thaliana Prophylaxis Arabidopsis thaliana
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The composition of the individual eukaryotes genome and its variation within a species remain poorly defined. Even for a sequenced genome such as that of the model plant Arabidopsis thaliana accession Col-0, the large arrays of heterochromatic repeats are incompletely sequenced, with gaps of uncertain size persisting in them. Using geographically separate populations of A. thaliana, we assayed variation in the heterochromatic repeat arrays using two independent methods and identified significant polymorphism among them, with variation by as much as a factor of two in the centromeric 180 bp repeat, in the 45S rDNA arrays and in the Athila retroelements. In the accession with highest genome size as measured by flow cytometry, Loh-0, we found more than a two-fold increase in 5S RNA gene copies relative to Col-0; results from fluorescence in situ hybridization with 5S probes were consistent with the existence of size polymorphism between Loh-0 and Col-0 at the 5S loci. Comparative genomic hybridization
Disease resistance genes (R genes), as part of the plant defense system, have coevolved with corresponding pathogen molecules. The main objectives of this project were to identify non-Toll interleukin receptor, nucleotide-binding site, leucine-rich repeat (nTNL) genes and elucidate their evolutionary divergence across six plant genomes. Using reference sequences from Arabidopsis, we investigated nTNL orthologs in the genomes of common bean, Medicago, soybean, poplar, and rice. We used Hidden Markov Models for sequence identification, performed model-based phylogenetic analyses, visualized chromosomal positioning, inferred gene clustering, and assessed gene expression profiles. We analyzed 908 nTNL R genes in the genomes of the six plant species, and classified them into 12 subgroups based on the presence of coiled-coil (CC), nucleotide binding site (NBS), leucine rich repeat (LRR), resistance to Powdery mildew 8 (RPW8), and BED type zinc finger domains. Traditionally classified CC-NBS-LRR (CNL) genes
Of the many plant genes whose expressions are controlled by the circadian clock, one of the phosphoenolpyruvate carboxylase kinase genes in soya bean (Glycine max) exhibits the unusual property that its control is organ-specific - it is under circadian control in leaves but not in roots. Preliminary experiments suggest that the same is true for at least one gene in Arabidopsis thaliana. It will be important to define the extent and function of this phenomenon and the underlying mechanism.. ...
Understanding the evolutionary genetics of modern crop phenotypes has a dual relevance to evolutionary biology and crop improvement. Modern upland cotton (Gossypium hirsutum L.) was developed following thousands of years of artificial selection from a wild form, G. hirsutum var. yucatanense, which bears a shorter, sparser, layer of single-celled, ovular trichomes (fibre). In order to gain an insight into the nature of the developmental genetic transformations that accompanied domestication and crop improvement, we studied the transcriptomes of cotton fibres from wild and domesticated accessions over a developmental time course. Fibre cells were harvested between 2 and 25 days post-anthesis and encompassed the primary and secondary wall synthesis stages. Using amplified messenger RNA and a custom microarray platform designed to interrogate expression for 40,430 genes, we determined global patterns of expression during fibre development. The fibre transcriptome of domesticated cotton is far more dynamic
Chen Xuewei,Shang Junjun,Chen Dexi,et al. a b-lectin receptor kinase gene conferring rice blast resistance[J]. Plant Journal,2006-01-01,46(5):794-804 ...
TY - JOUR. T1 - The First Plant Genome Sequence-Arabidopsis thaliana. AU - Feldmann, Kenneth A. AU - Goff, Stephen A. PY - 2014. Y1 - 2014. N2 - The Arabidopsis thaliana genome was the first plant genome to be sequenced. The substrates for sequencing consisted of a minimum tiling path of BAC, P1, YAC, TAC and cosmid clones, anchored to the genetic map. Using these substrates, 10 contigs were developed from 1569 clones. Annotation at the time the sequence was finished identified 25,498 protein-coding genes. With the continued development of software trained on Arabidopsis genes, along with the availability of large numbers of ESTs and additional plant genome sequences, the number of annotated genes has increased. The final TAIR (TAIR10) genome annotation release contains 27,202 nuclear protein-coding genes, 4827 pseudogenes and transposable element genes and 1359 noncoding RNAs. Gene density (kb/gene) is 4.35, with 5.89 exons/gene, an average exon length of 296. nt and an average intron length of ...
CLASSIFICATION OF PLANTS - LAB. The plant kingdom can include one celled organisms (diatoms) as well as complex organisms like angiosperms. Some plants and trees for example, have vascular tissue or well-developed conducting tissue through which water and solutes pass to various parts of the plant. Other plants are non-vascular or do not possess internal transport systems. Most non-vascular plants live in water or in wet environments that facilitate direct diffusion of water and nutrients. Vascular plants however, live on land and possess special features adapted to this environment including roots, stems and leaves. Dichotomous keys are ideal for plant classification. You can either eliminate or include plants based on several key characteristics. For instance, if it has woody tissue (bark) it is a vascular plant. Leaves, types of seed, type of flowers are also characteristics of vascular plants. However, before you can use dichotomous keys you need to describe plants. The classification of ...
Physcomitrella is also a model organism that is easily manipulated for study of how many plant genes function. Physcomitrella is to flowering plants what the fruit fly is to humans; that is, in the same way that the fly and mouse have informed animal biology, the genome of this moss will advance our exploration of plant genes and their functions and utility, said Joint Genome Institute director Eddy Rubin. Quatrano added that, unlike vascular plant systems, we can target and delete specific moss genes to study their function in important crop processes, and replace them with genes from crop plants to allow us to study the evolution of gene function. In addition to the genome, extensive genomic tools are now available in Physcomitrella to study comparative gene function and evolution as related to bioenergy and other processes of importance to crops. The availability of the Physcomitrella genome is expected to create important new opportunities for understanding the molecular mechanisms ...
Arabidopsis thaliana + , Arabidopsis thaliana (L.) Heynh. + , Arabidopsis thaliana (thale cress) + , Arbisopsis thaliana + , mouse-ear cress + , thale cress + , thale-cress + ...
The Genetics Society of America (GSA), founded in 1931, is the professional membership organization for scientific researchers and educators in the field of genetics. Our members work to advance knowledge in the basic mechanisms of inheritance, from the molecular to the population level.. Online ISSN: 1943-2631. ...
www.alaskawildflowers.us. The Brassicaceae Arabidopsis lyrata subsp. lyrata is a close relative of the model organism Arabidopsis thaliana, from which is diverged around 10 million years ago. A. lyrata is an outcrossing diploid and, unlike the (generally) self-fertilising A. thaliana, has stable and spatially restricted populations or subspecies. This means that comparisons between the genomes of the closely related species could reveal the genetic basis of the invasive spread of A. thaliana and would also provide valuable data on the evolution of the A. thaliana genome.. The genome of A. lyrata subsp. lyrata is around 50% larger than A. thaliana (207 Mb and 125 Mb respectively) and is predicted to contain more protein coding genes (32,670 genes compared to 27,025 genes in A. thaliana). Analysis of their genomes suggest that reduction in genome size is the result of large-scale rearrangements and hundreds of thousands of small deletions found throughout the genome. ...
Our main interest was the identification of barley genes most similar to Arabidopsis FT and hence most likely to be significant as floral pathway integrators. The barley genes that we identified correspond to rice genes in groups 1 and 2 of Figure 2. Group 3 genes may exist in barley, but no ESTs have been found and no clones were identified in our library screens, probably because the nucleotide sequence is too diverged.. Differences in gene number between rice and barley are primarily attributable to differences in the fate of duplicated genes. HvFT1 corresponds to OsFLT2 and -3, which are likely to be a recent duplication. OsFTL9-10 and OsFLT12-13 are pairs resulting from duplications within the rice genome (Paterson et al. 2003; Salse et al. 2004), but for the former we detected only an equivalent of OsFLT10 (HvFT3) and for the latter only the equivalent of OsFLT12 (HvFT4), suggesting that two genes have been lost from barley. HvFT3 and HvFT5 are likely to derive from a more recent ...
Genetic differences between Arabidopsis thaliana accessions underlie the plants extensive phenotypic variation, and until now these have been interpreted largely in the context of the annotated reference accession Col-0. Here we report the sequencing, assembly and annotation of the genomes of 18 na …
The scientists focused on plant cysteine oxidases, or PCOs, which are plant oxygen sensors found to be a vital component of the plant oxygen signaling system that connects environmental stimulus with a cellular and physiological response. These plant enzymes were found to control hypoxia-dependent processes in plants, which includes adaptive responses to flooding. Specifically, the scientists documented how the structures of two PCOs of the Arabidopsis plant had effects of mutagenesis of key amino acids at their active site in both in vitro and in planta. To sum up, it was found that by the enzymes, the plant uses oxygen to regulate the stability of proteins that control gene activity ...
Arabidopsis thaliana has become a model plant species for genetic studies because of its small genome and short juvenility period. However, the small chromosomes of this species are not suitable for classical cytogenetic studies. Here we demonstrate that the fluorescence in situ hybridization (FISH) …
TY - JOUR. T1 - Scandinavian perspectives on plant gene technology. T2 - applications, policies and progress. AU - Eriksson, Dennis. AU - Brinch-Pedersen, Henrik. AU - Chawade, Aakash. AU - Holme, Inger B. AU - Hvoslef-Eide, Trine A K. AU - Ritala, Anneli. AU - Teeri, Teemu H. AU - Thorstensen, Tage. N1 - © 2017 The Authors. Physiologia Plantarum published by John Wiley & Sons Ltd on behalf of Scandinavian Plant Physiology Society.. PY - 2018/2. Y1 - 2018/2. U2 - 10.1111/ppl.12661. DO - 10.1111/ppl.12661. M3 - Journal article. C2 - 29080293. VL - 162. SP - 219. EP - 238. JO - Physiologia Plantarum. JF - Physiologia Plantarum. SN - 0031-9317. IS - 2 Special Issue. ER - ...
Two adjacent nucleotide-binding site-leucine-rich repeat class genes are required to confer Pikm-specific rice blast resistance. ...
Arabidopsis annotated genes are represented by 7x7 pixel squares. The position of every gene reflects its position on the Arabidopsis chromosomes. Flower specific genes are represented in red, silique specific genes in purple, leaf specific genes in green, root specific genes in blue , callus specific genes in white, all other genes are dark grey squares. The gene squares are clickable and linked to the corresponding files in the MPSS Arabidopsis database ...
PLEXdb (Plant Expression Database) is a unified public resource for large-scale plant gene expression. PLEXdb serves as a bridge to integrate new and rapidly expanding gene expression profile data sets with traditional structural genomics and phenotypic data. Integrated portals to genetic and physical map positions, spliced alignments in PlantGDB, as well as protein pages in Gramene, GrainGenes, Legume Information System (LIS), SoyBase, MetNetDB, TIGR, and TAIR facilitates the use of whole-genome reference resources and parallel expression profiling for system-wide analysis of gene networks to facilitate crop improvement.
PLEXdb (Plant Expression Database) is a unified public resource for large-scale plant gene expression. PLEXdb serves as a bridge to integrate new and rapidly expanding gene expression profile data sets with traditional structural genomics and phenotypic data. Integrated portals to genetic and physical map positions, spliced alignments in PlantGDB, as well as protein pages in Gramene, GrainGenes, Legume Information System (LIS), SoyBase, MetNetDB, TIGR, and TAIR facilitates the use of whole-genome reference resources and parallel expression profiling for system-wide analysis of gene networks to facilitate crop improvement.