Publications by authors named "Xie-Fei Zhu"

Fiber quality improvement is a driving force for further cotton domestication and breeding. Here, QTLs for fiber quality were mapped in 115 introgression lines (ILs) first developed from two intraspecific populations of cultivated and feral cotton landraces. A total of 60 QTLs were found, which explained 2.

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Of the two cultivated species of allopolyploid cotton, Gossypium barbadense produces extra-long fibers for the production of superior textiles. We sequenced its genome (AD)2 and performed a comparative analysis. We identified three bursts of retrotransposons from 20 million years ago (Mya) and a genome-wide uneven pseudogenization peak at 11-20 Mya, which likely contributed to genomic divergences.

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Xiangzamian 2 (XZM2) is the most widely cultivated cotton hybrid in China. By crossing two parents Zhongmiansuo12 and 8891 and upon subsequent selfings, we got F8 and F9 populations having 180 recombinant inbred lines. Ten plant architecture traits were investigated in two years with this population.

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Article Synopsis
  • The study focused on using molecular marker-assisted selection (MAS) to improve fiber strength in cotton by leveraging two major quantitative trait loci (QTLs) from an elite germ-plasm line (7235).
  • QTLfs-1 was found to account for over 30% of the phenotypic variation in the breeding populations, while QTLfs-2 contributed around 12.5% and was identified in different fiber lines but worked independently from QTLfs-1.
  • The research demonstrated that combining both QTLs through MAS notably increased selection efficiency for fiber strength across various breeding populations, showcasing a successful strategy for enhancing desirable traits in breeding programs.
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Using interval mapping and marker simple regression methods, the QTLs of yield and its components in (Simian 3 x TM-1) F2 and F2:3, were tagged and Mapped with 39 SSR and 10 RAPD markers having polymorphism between parents screened from 301 pair SSR primers and 1040 RAPD primers. Simian 3 is being grown extensively in Yangtze River cotton-growing valley characterized as high productivity with more bolls and higher lint percent, whereas TM-1, Genetic standard in Upland cotton with more heavy boll weight. In the present report, two QTLs controlling boll size with 18.

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