文献类型： 外文期刊
作者： Wang, Youwu 1 ; Zhang, Jingchuan 1 ; Kong, Guangchao 2 ; Lin, Hai 3 ;
作者机构： 1.Tarim Univ, Coll Plant Sci, Alar 843300, Xinjiang, Peoples R China
2.Shihezi Univ, Coll Agron, Shihezi 832002, Xinjiang, Peoples R China
3.Xinjiang Acad Agr & Reclamat Sci, Northwest Inland Reg Key Lab Cotton Biol & Genet, Minist Agr, Inst Cotton, Shihezi 832000, Xinjiang, Peoples R China
关键词： cotton;chromosome segment introgression lines;quantitative trait locus;fibre quality;fine mapping
期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）
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收录情况： SCI
摘要： In an earlier advanced-backcross quantitative trait locus (QTL) analysis of an interspecific cross of Gossypium hirsutum cv. Xinluzhong 36'(XLZH36') and G.barbadense cv. Xinhai 21'(XH21'), a QTL for fibre strength in the chromosome segment introgression line IL23-09 was analysed. Single marker analysis revealed that the markers on chro.23 were associated with fibre strength. Using composite interval mapping with the F-2 population (1296 plants), a QTL for fibre strength was detected on chro. 23. The QTL explained 8.9% and 15.9% of phenotypic variances in the F-2 and F-2:3 generations, respectively. Substitution mapping suggested that the QTL was located at a physical distance of 23.4kb between the markers BNL1414 and the single nucleotide polymorphism (SNP) locus D09_43776813 C-G. We designated this QTL as qFS-chr.23 (quantitative trait locus for fibre strength on chro.23). This work provides a valuable genetic resource for the breeding of high fibre quality in cotton and will facilitate future efforts for map-based cloning.
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