Mitogen-activated protein kinase (MAPK) cascades are conserved signal transduction pathways in all eukaryotic organisms. MAPKKKs (MAPK kinase kinases) operate at the top levels of these cascades. Recently, this family of genes has been systematically investigated in Arabidopsis, rice and maize, but has not yet been characterized in cotton. In this study, we identified 78 putative MAPKKK genes in the genome of the diploid cotton, Gossypium raimondii. They were classified into three subfamilies, of which 12 were ZIK, 22 were MEKK and 44 were Raf. The ZIK and MEKK genes displayed a scattered genomic distribution across 11 of the 13 chromosomes, whereas Raf genes were distributed across the entire genome. Their conserved patterns observed for introns and additional domains were consistent with the evolutionary relationships inferred from the phylogenetic analysis within subfamily. Transcriptome sequencing data were used to investigate their transcript profiles in mature leaves, 0 day and 3 days post
Measurement or estimation of leaf area is essential for understanding crop responses to experimental treatments. The objective of this study was to develop regression models for estimating leaf area of field-grown cotton (Gossypium hirsutum L.) from measurements of leaf dry weight (LDW), vegetative components (stems and leaves) dry weight (VDW) and plant height (PH). Three cotton cultivars (Deltapine 25, Sahel and Siokra 324) with different leaf morphologies were grown under varying growth conditions created by four different planting dates in a temperate sub-humid environment (Gorgan, Iran). Leaf area, LDW, VDW and PH were measured at one month after emergence, squaring, flowering, bolling, boll opening and second harvest. Data set for validation was collected during growing season of 2003 in different experiments. Measured leaf area ranged from 170 to 8167 cm2 plant -1. Different regression models were examined for describing leaf area relationships to LDW, VDW and PH. It was found that the power
The invention relates to the novel cotton variety designated 04T048. Provided by the invention are the seeds, plants, plant parts and derivatives of the cotton variety 04T048. Also provided by the invention are tissue cultures of the cotton variety 04T048 and the plants regenerated therefrom. Still further provided by the invention are methods for producing cotton plants by crossing the cotton variety 04T048 with itself or another cotton variety and plants produced by such methods.
Robust information of genetic diversity among Bt cotton genotypes is still lacking and availability of several marker systems has prompted us to compare their utility for the detection of genetic diversity. Here, we report the comparative efficiency of morphological and molecular markers (EST-SSRs and ISSRs) in determining the genetic diversity among 30 Pakistani Bt cotton genotypes. Three different dendrograms based on 20 EST-SSRs, 13 ISSRs and 20 morphological markers divided the 30 Bt cotton genotypes into five, six, and three clusters, respectively. EST-SSRs and ISSRs revealed 0.73-1.00 and 0.77-0.97 genetics similarity among Bt cotton genotypes which indicated low level of genetic diversity. Further population structure analysis showed extensive allelic admixture among Bt cotton cultivars and identified three (EST-SSRs) and six (ISSRs) subgroups. The MGHES-31 (EST-SSRs) and UBC-807 and UBC-815 (ISSRs) showed maximum values of Polymorphic Information Contents(PIC) and Dj and had low value of Cj. The
Cotton varieties expressing Cry proteins derived from the soil bacterium Bacillus thuringiensis (Bt) are grown worldwide for the management of pest Lepidoptera. To prevent non-target pest outbreaks and to retain the biological control function provided by predators and parasitoids, the potential risk that Bt crops may pose to non-target arthropods is addressed prior to their commercialization. Aphids play an important role in agricultural systems since they serve as prey or host to a number of predators and parasitoids and their honeydew is an important energy source for several arthropods. To explore possible indirect effects of Bt crops we here examined the impact of Bt cotton on aphids and their honeydew. In climate chambers we assessed the performance of cotton aphids, Aphis gossypii Glover (Hemiptera: Aphididae) when grown on three Indian Bt (Cry1Ac) cotton varieties (MECH 12, MECH 162, MECH 184) and their non-transformed near isolines. Furthermore, we examined whether aphids pick up the Bt
Drought stress is one of the major abiotic factors affecting crop growth and limiting production worldwide. Cotton genotypes vary in drought tolerance, and the effects of drought stress on the anatomy and physiology of cotton leaves and roots have been reported. However, information on physiological and metabolic processes of leaves and flowers of modern cotton cultivars under water-deficit stress during reproductive development is not well elucidated. It was hypothesized that water-deficit stress during squaring and flowering stages would impair stomatal conductance and photosynthetic efficiency of leaves, which consequently would result in osmotic adjustment through accumulation of compatible solutes, increased activity of enzymes, and perturbation of carbohydrates metabolism in leaves and flowers of cotton plants, and differences in drought tolerance among the genotypes would exist. Therefore, field and growth room experiments were conducted to evaluate the effects of water-deficit stress during
Non-specific lipid transfer proteins (nsLTPs) had been previously isolated from cotton fiber but their functions were unclear so far. Bioinformatic analysis of the tetraploid cotton genome database identified 138 nsLTP genes, falling into the 11 groups as reported previously. Different from Arabidopsis, cacao, and other crops, cotton type XI genes were considerably expanded and diverged earlier on chromosome At11, Dt11, and Dt08. Corresponding to the type XI genes, the type XI proteins (GhLtpXIs) all contained an extra N-terminal cap resulting in larger molecular weight. The research revealed that the expression of type XI genes was dramatically increased in fibers of tetraploid cotton compared with the two diploid progenitors. High-level of GhLtpXIs expression was observed in long-fibered cotton cultivars during fiber elongation. Ectopic expression of GhLtpXIs in Arabidopsis significantly enhanced trichome length, suggesting that GhLtpXIs promoted fiber elongation. Overall, the findings of this
A stain-clearing method, which facilitated the analysis of large numbers of ovules, was developed using methyl salicylate (MS) and azure C, and used with real-time video imaging and image capture. The ability to modulate contrast and illumination intensity using video made it feasible to reduce stain intensity and thus light interference from the specimen. Samples stained and cleared were used as whole mounts which allowed the specimen to be oriented for precise analysis. Of 440 semigamous zygotes examined 439 had one egg and one sperm nucleus resulting from syngamy without karyogamy indicating semigamy is completely expressed. All phenotypes observed in semigamous cotton seedlings appear to arise as products of zygote division. Haploid and tetraploid sectors may result from relative spindle positions, orientation, and the tendency for nearby telophase chromosomes to form a common nucleus. Semigamous endosperm nuclei are triploid, but fusion was never observed. Endosperm may be a result of ...
p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
Brako, L. and Zarucchi, J.L. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monographs in Systematic Botany from the Missouri Botanical Garden 45: 1-1286.. CDC (Centro de Datos para la Conservación). 1998. Estado de conservación de Puya raimondii (Harms): evaluación y sugerencias para un plan de acción. CDC-Bolivia (Centro de Datos para la Conservación/TROPICO), La Paz.. Fjeldså, J. and Kessler, M. 1996. Conserving the biological diversity of Polylepis woodlands of the highland of Peru and Bolivia. NORDECO, Copenhagen.. Givnish, T.J. Millam, K.C., Evans, T.M., Hall, J.C., Pires, J.C., Berry, P.E. and Sytsma, K.J. 2004. Ancient vicariance or recent long distance dispersal? Inferences about phylogeny and South American - African disjunction in Rapateaceae and Bromeliaceae based on n dhF sequence data. International Journal of Plant Sciences 165: S35-S54.. Hartmann, O. 1981. Puya raimondii cada vez son menos. Boletín de Lima 10: 79-83.. Horres, R., Zizka, G., Kahl, G. and ...
I had a reader send me this experience, stressing the importance of using organically grown cotton roots. "I am writing concerning your section on cotton root bark. (I am writing from my friends e-mail account, Im not actually male. :) ) In any case, I would like to add a strong prohibition on using cotton root bark from standard agricultural sources (chemical laden farming, as you had written). I live in Memphis, directly across the Mississippi from the cotton fields of Arkansas. Three years ago I became very frightened of pregnancy, having had irresponsible sex during my fertile time. I read up in my herbal books, trucked myself over to Arkansas and dug roots. I peeled roots for an hour and made a mild tea because I had no dosage knowledge and began with the very smallest amount of root I could snip away. Within an hour I had cold chills, shakes, and I had my period two days later. This may *seem* like success, but during the time I was in my comforter with the chills and shaking I was *very ...
Cultivated Upland cotton, Gossypium hirsutum L., is a partially diploidized allotetraploid species with relatively low levels of genetic diversity. Genetic gain through traditional breeding approaches is thus impeded. The wild species of the primary and secondary gene pools of cotton are approachable sources of agronomic traits of interest, but biological, cytogenetic, genetic and reproductive incompatibilities can impede progress. Genomic markers can alleviate certain difficulties, and expedite selective transfer of exotic species germplasm into one or more elite genotypes of a crop species. Coordinated development of Chromosome Segment Substitution Lines (CSSLs) using markers can in principle lead to complete representation of an alien genome in a cultivated crop. Co-released with the CottonSNP63K Array, a BeadChip array for high-throughput genotyping of cotton, was a cluster file designed to facilitate automated genotype-calling germplasm from the primary genepool. Reported here is a new ...
The international research team led by Chinese Academy of Agricultural Sciences and BGI have completed the genome sequence and analysis of a diploid cotton- Gossypium raimondii. The cotton genome provides an invaluable ...
Cotton Plant, Cotton Root Bark, Cotonnier, Gossypium Album (Ham.), Short Staple, Gossypium Nigrum, Ham., Sea Island cotton.. ...
Virescence, as a recognizable phenotype in the early development stage of cotton, is not only available for research on chloroplast development and photosynthesis but also for heterosis exploitation in cotton. In current study, for fine mapping of virescent-1 (v1) in cotton, three populations with a total of 5 678 individuals were constructed using T582 which has the virescent trait. Tobacco rattle virus, TRV1 and TRV2 (pYL156), were used as vectors for the virus-induced gene silencing (VIGS) assay. The v1 gene was fine-mapped to a 20 kb interval on chromosome 20 of tetraploid cotton. We identified only one candidate gene with four single nucleotide polymorphisms between parents, among which the single nucleotide polymorphism at the position of 1 082 base pair caused the change of amino acid residue from Arg (3-79) to Lys (T582). The relative expression of the candidate gene in virescent plants was extensively lower than that in normal plants. Nullification of the gene by VIGS significantly turned the
Abstract (provisional) Background Cotton is the worlds most important natural textile fiber and a significant oilseed crop. Decoding cotton genomes will provide the ultimate reference and resource for research and utilization of the species. Integration of high-density genetic maps with genomic sequence information will largely accelerate the process of whole-genome assembly in cotton. Results In this paper, we update a high-density interspecific genetic linkage map of allotetraploid cultivated cotton. An additional 1,167 marker loci have been added to our previously published map of 2,247 loci. Three new marker types, InDel (insertion-deletion) and SNP (single nucleotide polymorphism) developed from gene information, and REMAP (retrotransposon-microsatellite amplified polymorphism), were used to increase map density. The updated map consists of 3,414 loci in 26 linkage groups covering 3,667.62 cM with an average inter-locus distance of 1.08 cM. Furthermore, genome-wide sequence analysis was
PubMed Central Canada (PMC Canada) provides free access to a stable and permanent online digital archive of full-text, peer-reviewed health and life sciences research publications. It builds on PubMed Central (PMC), the U.S. National Institutes of Health (NIH) free digital archive of biomedical and life sciences journal literature and is a member of the broader PMC International (PMCI) network of e-repositories.
Cotton Leaf Curl Disease is among the most destroying viral catastrophe that causes tremendous loss to cotton yield particularly in Pakistan during the past 20
Knowledge of the inheritance of disease resistance and genomic regions housing resistance (R) genes is essential to prevent expanding pathogen threats such as Fusarium wilt [Fusarium oxysporum f.sp. vasinfectum (FOV) Atk. Sny & Hans] in cotton (Gossypium spp.). We conducted a comprehensive study combining conventional inheritance, genetic and quantitative trait loci (QTL) mapping, QTL marker-sequence composition, and genome sequencing to examine the distribution, structure and organization of disease R genes to race 1 of FOV in the cotton genome. Molecular markers were applied to F(2) and recombinant inbred line (RIL) interspecific mapping populations from the crosses Pima-S7 (G. barbadense L.) × Acala NemX (G. hirsutum L.) and Upland TM-1 (G. hirsutum) × Pima 3-79 (G. barbadense), respectively. Three greenhouse tests and one field test were used to obtain sequential estimates of severity index (DSI) of leaves, and vascular stem and root staining (VRS). A single resistance gene model was ...
The Gossypium hirsutum cv. Liaomian No. 9 were mutagenized by 60Co γ ray, from which the mutant line Zhonghuzhi PI 935 (be called PI 935 for short) was bred by family selection method. The PI 935 not only has some good traits (growing period, drought tolerance, lint color and fiber quality) similar to the original cultivar, but also has higher lint outturn and lint yield than that of the Liaomian No. 9. The PI 935 has been identified and regional tested in nine places times for four years in the southern Xinjiang Weiwuer autonomous region. It was shown that the PI 935 had the higher lint outturn for the average 47.3 % was ten-point percentage more than that of the check cultivars (Junmian No. 1 or Xinluzhong No. 5 ) , the similar lint yield by and large and the growing period by five days later than that of the checks. The PI 935 was collected in the National Bank of Crop Germplasm (u-nified No. ZM 114274 and named Zhonghuzhi PI 935).
Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus Gossypium in the mallow family Malvaceae. The fiber is almost pure cellulose. Under natural conditions, the cotton bolls will increase the dispersal of the seeds. The plant is a shrub native to tropical and subtropical regions around the world, including the Americas, Africa, and India. The greatest diversity of wild cotton species is found in Mexico, followed by Australia and Africa. Cotton was independently domesticated in the Old and New Worlds. The fiber is most often spun into yarn or thread and used to make a soft, breathable textile. The use of cotton for fabric is known to date to prehistoric times; fragments of cotton fabric dated from 5000 BC have been excavated in Mexico and between 6000 BC and 5000 BC in the Indus Valley Civilization. Although cultivated since antiquity, it was the invention of the cotton gin that lowered the cost of production that led ...
Description: Plant architecture is an important agronomic trait driven by meristematic activities. Indeterminate meristems set repeating phytomers while determinate meristems produce terminal structures. The centroradialis/terminal flower1/self pruning (CETS) gene family modulates architecture by controlling determinate and indeterminate growth. Cotton (G. hirsutum) is naturally a photoperiodic perennial cultivated as a day-neutral annual. Management of this fiber crop is complicated by continued vegetative growth and asynchronous fruit set. Here, cotton CETS genes are phylogenetically and functionally characterized. We identified eight CETS genes in diploid cotton (G. raimondii and G. arboreum) and sixteen in tetraploid G. hirsutum that grouped within the three generally accepted CETS clades: flowering locus T (FT)-like, terminal flower1/self pruning (TFL1/SP)-like, and mother of FT and TFL1 (MFT)-like. Over-expression of single flower truss (GhSFT), the ortholog to Arabidopsis FT, accelerates ...
If GE cotton fields are not soaked with insecticides and non-GE cotton fields are soaked with insecticides, the GE cotton fields will have more living insects of all types. This is kind of obvious. The null hypothesis is what happens when you compare insect populations on GE and non-GE cotton fields without any application of any insecticides on either field. This is a classic example of the experimenter putting his thumb on the butchers scale and then getting exactly the result they predicted. It is not science; it is marketing.. ...
Texas cattle producers exploring option of feeding whole cotton plants - Texas cattle producers exploring option of feeding whole cotton plants October 21 2011 By: Blair Fannin COLLEGE STATION Texas beef producers are exploring the use of whole co...
ALEXANDRIA - The LSU AgCenter will host a field day at its Dean Lee Research Station Aug. 26.. Known as the Rapides Parish/Dean Lee Crop Field Day, this third annual event is slated to start at 3 p.m. Aug. 26 at the research station south of Alexandria.. The field day will feature two concurrent tours of fields where LSU AgCenter research is being conducted - one focusing on cotton research and the other on feed grain studies.. Presentations on cotton defoliation by LSU AgCenter cotton specialist Dr. Sandy Stewart and on feed grain variety developments and the soybean verification program by feed grain specialist Dr. David Lanclos will be included on both tours.. In addition, the cotton tour will include talks on plant population and Pix research by Stewart and graduate student Jonathan Siebert, on cotton varieties and late-season insect management by Stewart and LSU AgCenter entomologist Dr. Ralph Bagwell and on cotton weed control with herbicides and their development by research station ...
Abstract: Coronatine [COR] is a novel type of plant growth regulator with similarities in structure and property to jasmonate. The objective of this study was to examine the relationship between increased root vitality induced by 10nM COR and reactive oxygen species scavenging under potassium (K)-replete (2.5mM) and K-deficient (0.05mM) conditions in hydroponic cultured cotton seedlings. K-replete and K-deficient conditions increased root vitality by 2.7- and 3.5-fold, respectively. COR treatment significantly decreased lipid peroxidation in cotton seedlings determined by reduction in MDA levels. These results suggest that COR improves the functioning of both enzymatic and non-enzymatic antioxidant systems. Under K-replete and K-deficient conditions, COR significantly increased the activities of antioxidant enzymes SOD (only for K-repletion), CAT, GPX, and APX comparing; COR also significantly increased DPPH-radical scavenging activity. However, COR led to 1.6- and 1.7-fold increases in ...
When they allow livestock to graze on the Bt cotton plants after harvest, thousands of sheep, goats, and buffalo died. Numerous others got sick. I visited one village where for seven to eight years they allowed their buffalo to graze on natural cotton plants without incident. But on January 3rd, 2008, they allowed their 13 buffalo to graze on Bt cotton plants for the first time. After just one days exposure, all died. The village also lost 26 goats and sheep.. One small study in Andhra Pradesh reported that all six sheep that grazed on Bt cotton plants died within a month, while the three controls fed natural cotton plants showed no adverse symptoms.. Living pesticide factories inside us?. Getting back to the Bt-toxin now circulating in the blood of North American adults and newborns-how did it get there? The study authors speculate that it was consumed in the normal diet of the Canadian middle class. They even suggest that the toxin may have come from eating meat from animals fed Bt corn-as ...
Several parasitoid species of flies and wasps may attack cotton pests (Figure 57), especially aphids and the larvae of lepidopteran pests. Various tiny wasps regularly lay their eggs inside the bodies of aphids. Within a few days the aphids are paralyzed, become swollen and discolored, and eventually die (Figure 58). Several days later, the adult wasp (Figure 59) emerges through a circular hole cut in the mummified body of the aphid. Other tiny wasps and parasitic flies attack the egg or larval stage of armyworms, bollworms, loopers, and other lepidopteran cotton pests.. Several naturally occurring pathogens also may infect and reduce populations of cotton pests. For example, epizootics or outbreaks of the fungal pathogen Neozygites fresenii can rapidly reduce cotton aphid infestations within 7 to 10 days. Infected aphids typically die with their mouthparts still inserted into the leaf and are covered with a velvety white or light gray growth (Figure 60). Later, secondary pathogens infect the ...
Several parasitoid species of flies and wasps may attack cotton pests (Figure 57), especially aphids and the larvae of lepidopteran pests. Various tiny wasps regularly lay their eggs inside the bodies of aphids. Within a few days the aphids are paralyzed, become swollen and discolored, and eventually die (Figure 58). Several days later, the adult wasp (Figure 59) emerges through a circular hole cut in the mummified body of the aphid. Other tiny wasps and parasitic flies attack the egg or larval stage of armyworms, bollworms, loopers, and other lepidopteran cotton pests.. Several naturally occurring pathogens also may infect and reduce populations of cotton pests. For example, epizootics or outbreaks of the fungal pathogen Neozygites fresenii can rapidly reduce cotton aphid infestations within 7 to 10 days. Infected aphids typically die with their mouthparts still inserted into the leaf and are covered with a velvety white or light gray growth (Figure 60). Later, secondary pathogens infect the ...
Zhang, T., Hu, Y., Jiang, W., Fang, L., Guan, X., Chen, J., Zhang, J., Saski, C., Scheffler, B.E., Stelly, D.M., Hulse-Kemp, A.M., Wan, Q., Liu, B., Liu, C., Wang, S., Pan, M., Wang, Y., Wang, D., Ye, W., Chang, L., Zhang, W., Song, Q., Kirkbride, R.C., Chen, X., Dennis, E., Llewellyn, D.J., Peterson, D.G., Thaxton, P., Jones, D.C., Wang, Q., Xu, X., Zhang, H., Wu, H., Zhou, L., Mei, G., Chen, S., Tian, Y., Xiang, D., Li, X., Ding, J., Zuo, Q., Tao, L., Liu, Y., Li, J., Lin, Y., Hui, Y., Cao, Z., Cai, C., Zhu, X., Jiang, Z., Zhou, B., Guo, W., Li, R., Chen, Z. 2015. Sequencing of allotetraploid cotton (Gossypium hirsutum L. acc. TM-1) provides a resource for fiber improvement. Nature Biotechnology. 33(5):531-537. doi:10.1038/nbt.3207 ...
One of the exciting opportunities stimulated by the convergence of modern genomic approaches with other areas of biology is that of resolving the enigmatic processes by which new phenotypes arise. Using a well-developed model system from the cotton genus (Gossypium) and multiple genomic resources, we are using comparative approaches combined with advanced population development to will reveal the steps and complexities involved in transforming primitive trichomes to the economically important fibers of modern cotton cultivars. Our goal is to understand the genetic causes and system-wide effects that underlie phenotypic change. An exciting dimension to our work is that it involves domestication at both the diploid and allopolyploid levels, permitting us to explore the possibility that polyploid formation created novel opportunities for phenotypic evolution. Also, because two different allopolyploid species were independently domesticated, we have an outstanding opportunity to evaluate ...
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Line x Tester Analysis for Yield and Yield Attributes in upland Cotton (Gossypium hirsutum L.) Insilco Characterization and Predication of Mutation Host
Microarrays offer a powerful tool for diverse applications plant biology and crop improvement. Recently, two comprehensive assemblies of cotton ESTs were constructed based on three Gossypium species. Using these assemblies as templates, we describe the design and creation and of a publicly available oligonucleotide array for cotton, useful for all four of the cultivated species. Synthetic oligonucleotide probes were generated from exemplar sequences of a global assembly of 211,397 cotton ESTs derived from |50 different cDNA libraries representing many different tissue types and tissue treatments. A total of 22,787 oligonucleotide probes are included on the arrays, optimized to target the diversity of the transcriptome and previously studied cotton genes, transcription factors, and genes with homology to Arabidopsis. A small portion of the oligonucleotides target unidentified protein coding sequences, thereby providing an element of gene discovery. Because many oligonucleotides were based on ESTs from
We estimated survival and final location of neonate Helicoverpa armigera after 72 h on both genetically modified (GM) and conventional cotton at the squaring stage. On average, about 2.5% out of a total of 1620 initial larvae survived on two gene GM cotton (CS × 450, 289BGII®) compared with 39.5% out of a total of 810 initial larvae on Sicot 189, a conventional cotton variety. A disproportionate number of larvae were collected on squares of GM cotton, assuming they behave the same way on GM plants as on conventional plants but suffer higher rates of mortality. Our results imply that the behaviour of neonates on GM plants in terms of finding squares (and/or better survival on squares) may be contributing to the continued pest status of Helicoverpa on GM cotton from time to time. Experiments to determine if selection for changed behaviour in the field has or is occurring are urgently required ...
The nitrogen (N) metabolism of the leaf subtending the cotton boll (LSCB) was studied with two cotton (Gossypium hirsutum L.) cultivars (Simian 3, low-K tolerant; Siza 3, low-K sensitive) under three levels of potassium (K) fertilization (K0: 0 g K2O plant−1, K1: 4.5 K2O plant−1 and K2: 9.0 g K2O plant−1). The results showed that total dry matter increased by 13.1-27.4% and 11.2-18.5% under K supp ...
We recently demonstrated that cotyledons of cotton (Gossypium hirsutum L.) seedlings synthesize N-acylphosphatidylethanolamine (NAPE), an unusual acylated derivative of phosphatidylethanolamine (PE), during postgerminative growth (K.D. Chapman and T.S. Moore [1993] Arch Biochem Biophys 301: 21-)33). Here, we report the discovery of an acyltransferase enzyme, fatty acid: diacylphosphatidylethanolamine N-acyltransferase (designated NAPE synthase), that synthesizes NAPE from PE and free fatty acids (FFA) in cottonseed microsomes. [14C]NAPE was synthesized from [14C]palmitic acid and endogenous PE in a time-, pH-, temperature-, and protein concentration-dependent manner. [14C]Palmitic acid was incorporated exclusively into the N-acyl position of NAPE. [14C]palmitoyl coenzyme A (CoA) and [14C]-dipalmitoyl phosphatidylcholine (PC) were poor acyl donors for the synthesis of NAPE (i.e. 200- and 3000-fold lower incorporation efficiency than palmitic acid, respectively). Synthesis of NAPE from ...
Read "Estimation of the efficiency of seed irradiation by thermal neutrons for inducing chromosomal aberrations in M1 of cotton Gossypium hirsutum L., Russian Journal of Genetics" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Study of LAD, RDMP and CGR of late sown Bt Cotton (Gossypium hirsutum L.) as influenced by different plant spacings, fertilizer levels and NAA applications under ...
About the assembly. The ZM24 genome assembly was conducted using a Canu-based pipeline (Koren, S. et al. 2017) with the following procedures: longer seed reads were selected with the settings genomeSize = 600000000 and corOutCoverage = 35; raw reads overlapping was detected through a high sensitive overlapper MHAP (mhap-2.1.2, option corMhapSensitivity = low/normal/high), and an error correction was performed through Falcon sense method (option correctedErrorRate = 0.025); error-corrected reads were trimmed of unsupported bases and hairpin adapters in order to reach their longest supporting range with the default parameters, and then the draft assembly was generated using the top 80% longest trimmed reads. The raw Illumina reads were filtered as mentioned in the Illumina sequencing section. Finally, the clean reads from the same sequencing individuals were integrated to correct the SNPs and InDels in the draft assemblies using Pilon v1.22 (Walker, B. J. et al., 2014) with the parameters ...
Excitotoxicity is one of the most extensively studied processes of neuronal death and plays an important role in Alzheimers disease. In the present study, the protective effects of Gossypium herbaceam extracts (GHE) on learning and memory impairment
Khadi: The Fabric of Freedom by . Contents: Foreword/Andreas Reinhart. Reflections on Khadi/Asha Sarabhai From a different cloth/Rudrangshu Mukherjee Khadi the thread of inner silence/Rta Kapur-Chishti Photo essay/Manuel Bauer/Lookat Hand-spun and hand-woven : cotton Khadi in the new millennium/Rahul Jain Introduction Cotton Species and cultivation : Cotton cultivation in India Cotton varieties in India The structure and properties of cotton fibre : Chemical composition Molecular structure Physical structure and properties Pre-spinning and spinning processes : Cotton picking Ginning and baling Carding Drawing, combing, roving Spinning Weaving and finishing processes Special cotton for Khadi A future for cotton Khadi Concordance list Shanti Sutra.
Self-Cleaning Material Based on Cotton Fabric for Decomposition of Air Pollutants and Bacteria Доклады на конференциях ...
Classification for Kingdom Plantae Down to Species Gossypium hirsutum L. Click on names to expand them, and on P for PLANTS profiles ...
Abstract. Field experiments were conducted to evaluate the impacts of graywater irrigation with and without soil conditioning with mulching on cotton growth an
2 years ago - Compiled by Staff Ah, soft, smooth cotton. We love it in our sheets, our tablecloths, and luxurious cotton shirts. But did you know that different cotton species can grow as rugged trees in Australia or Central America? Or as a wild shrub in the southern United States? And that the cotton plant has quite the history of genetics to tell?. From transoceanic travels to inter-species cross-breedings, cottons story is one of plant and seed survival, adaptation, and human cultivation. What started as a naturally tough, unspinnable fiber has been transformed into something most folks adore for its soft, comforting feel.. Humans have been using cotton for more than 6,000 years. (As a reference, synthetic fibers like polyester werent created until after World War 1.) Cultivation - farming it and trying to improve the crop yield and properties - started at least 3,000 years ago. Many of us studied Eli Whitney and his invention of the cotton gin in 1794 as part of our history classes. But ...
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Results for cotton crop equipment from Actagro Organic Acids, Actara, AEROMAT and other leading brands. Compare and contact a supplier near you on agriculture-xprt.com
Henriettes herbal is one of the oldest and largest herbal medicine sites on the net. Its been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.. ...