1.Development of EST-SSRs derived from G.barbadense:One hundred and nineteen EST-SSRs were developed based on 98 unique ESTs from a cDNA library constructed in our laboratory using developing fibers from G.barbadense ...1.Development of EST-SSRs derived from G.barbadense:One hundred and nineteen EST-SSRs were developed based on 98 unique ESTs from a cDNA library constructed in our laboratory using developing fibers from G.barbadense cv.3-79.Among the SSRs,trinucleotide AAG appeared展开更多
Cotton is the worlds leading natural fiber crop,and it is the cornerstone of textile industries worldwide.The cotton industry is confronted with problems in cost of production and
Cotton(Gossypium spp.) is the leading fiber crop,and an important source of the important edible oil and protein meals in the world.Complex genetics and strong environmental effects hinder
This article combines both a review of the literature and original data from our research. The comparative efficacy of Bacillus thuringiensis （Berliner） traits Bollgard, Bollgard II, WideStrike, and non-Bt expressin...This article combines both a review of the literature and original data from our research. The comparative efficacy of Bacillus thuringiensis （Berliner） traits Bollgard, Bollgard II, WideStrike, and non-Bt expressing cotton, Gossypium hirsutum L., for control of the noctuid complex of bollworm, Helicoverpa zea （Boddie）; fall armyworm, Spodopterafrugiperda （J.E. Smith）; beet armyworm, Spodoptera exigua （Htibner）; and cabbage looper, Trichoplusia ni （Hiibner）, were evaluated in the Lower Rio Grande Valley of Texas during 2005-2009. Noctuid larval survival and damage to leaves on non-Bt cotton were 3.6-fold greater than on Bollgard II or WideStrike cotton and 1.5-fold greater than on cotton varieties with the Bollgard trait. Transgenic cotton has reduced the need for conventional insecticides with benefits to human health and the environment. The revenue differences between Bt and conventional cotton for last four years in LRGV of Texas was 214.35/ha and profit about 94.95/ha. We also analyzed cotton noctuid losses between Bt and conventionally grown cotton in the USA summary of all states and Texas summary of all regions.展开更多
Genome-wide association studies （GWASs） efficiently identify genetic loci controlling traits at a relatively high resolution. In this study, variations in major early-maturation traits, including seedling period （S...Genome-wide association studies （GWASs） efficiently identify genetic loci controlling traits at a relatively high resolution. In this study, variations in major early-maturation traits, including seedling period （SP）, bud period （BP）, flower and boll period （FBP）, and growth period （GP）, of 169 upland cotton accessions were investigated, and a GWAS of early maturation was performed based on a CottonSNPSoK array. A total of 49,650 high-quality single-nucleotide polymorphisms （SNPs） were screened, and 29 significant SNPs located on chromosomes A6, A7, A8, D% D2, and D9, were repeatedly identified as associated with early-maturation traits, in at least two environments or two algorithms. Of these 29 significant SNPs, I, 12, 11, and 5 were related to SP, BP, FBP, and GP, respectively. Six peak SNPs, TM47967,TM13732, TM2o937, TM28428, TM5o283, and TM72552, exhibited phenotypic contributions of approximately lo%, which could allow them to be used for marker-assisted selection. One of these, TM72552, as well as four other SNPs, TM72554, TM72555, TM72558, and TM72559, corresponded to the quantitative trait loci previously reported. In total, 274 candidate genes were identified from the genome sequences of upland cotton and were categorized based on their functional annotations. Finally, our studies identified Gh_DoIGo34o and Gh_DoIGo34~ as potential candidate genes for improving cotton early maturity.展开更多
文摘1.Development of EST-SSRs derived from G.barbadense:One hundred and nineteen EST-SSRs were developed based on 98 unique ESTs from a cDNA library constructed in our laboratory using developing fibers from G.barbadense cv.3-79.Among the SSRs,trinucleotide AAG appeared
文摘Cotton is the worlds leading natural fiber crop,and it is the cornerstone of textile industries worldwide.The cotton industry is confronted with problems in cost of production and
文摘Cotton(Gossypium spp.) is the leading fiber crop,and an important source of the important edible oil and protein meals in the world.Complex genetics and strong environmental effects hinder
文摘This article combines both a review of the literature and original data from our research. The comparative efficacy of Bacillus thuringiensis （Berliner） traits Bollgard, Bollgard II, WideStrike, and non-Bt expressing cotton, Gossypium hirsutum L., for control of the noctuid complex of bollworm, Helicoverpa zea （Boddie）; fall armyworm, Spodopterafrugiperda （J.E. Smith）; beet armyworm, Spodoptera exigua （Htibner）; and cabbage looper, Trichoplusia ni （Hiibner）, were evaluated in the Lower Rio Grande Valley of Texas during 2005-2009. Noctuid larval survival and damage to leaves on non-Bt cotton were 3.6-fold greater than on Bollgard II or WideStrike cotton and 1.5-fold greater than on cotton varieties with the Bollgard trait. Transgenic cotton has reduced the need for conventional insecticides with benefits to human health and the environment. The revenue differences between Bt and conventional cotton for last four years in LRGV of Texas was 214.35/ha and profit about 94.95/ha. We also analyzed cotton noctuid losses between Bt and conventionally grown cotton in the USA summary of all states and Texas summary of all regions.
基金supported by the National Natural Science Foundation of China(31671743)the Innovative Talent Support Program of Science and Technology of the Henan Institute of Higher Learning(16HASTIT014)the Middle-aged or Young Leading Talent Project of Xinjiang Production and Construction Group(2016BC001)
文摘Genome-wide association studies （GWASs） efficiently identify genetic loci controlling traits at a relatively high resolution. In this study, variations in major early-maturation traits, including seedling period （SP）, bud period （BP）, flower and boll period （FBP）, and growth period （GP）, of 169 upland cotton accessions were investigated, and a GWAS of early maturation was performed based on a CottonSNPSoK array. A total of 49,650 high-quality single-nucleotide polymorphisms （SNPs） were screened, and 29 significant SNPs located on chromosomes A6, A7, A8, D% D2, and D9, were repeatedly identified as associated with early-maturation traits, in at least two environments or two algorithms. Of these 29 significant SNPs, I, 12, 11, and 5 were related to SP, BP, FBP, and GP, respectively. Six peak SNPs, TM47967,TM13732, TM2o937, TM28428, TM5o283, and TM72552, exhibited phenotypic contributions of approximately lo%, which could allow them to be used for marker-assisted selection. One of these, TM72552, as well as four other SNPs, TM72554, TM72555, TM72558, and TM72559, corresponded to the quantitative trait loci previously reported. In total, 274 candidate genes were identified from the genome sequences of upland cotton and were categorized based on their functional annotations. Finally, our studies identified Gh_DoIGo34o and Gh_DoIGo34~ as potential candidate genes for improving cotton early maturity.
