作物学报2017，Vol.43Issue(12)：1733-1745,13.DOI:10.3724/SP.J.1006.2017.01733
利用黄褐棉染色体片段导入系定位产量和纤维品质性状QTL
QTL Mapping for Yield and Fiber Quality Traits Using Gossypium mustelinum Chromosome Segment Introgression Lines
摘要
Abstract
The genetic basis of upland cotton is narrow, which hinders the progress of genetic improvement of cotton. To effec-tively broaden the genetic basis of upland cotton, we developed BC5S5 chromosome segment substitution lines (CSSLs) popula-tion consisting of 71 CSSLs, which was derived from the Gossypium mustelinum, the wild cotton (AD4) as the donor, and B0011, one parent of national authorized cotton variety Huazamian H318 with good comprehensive characters of upland cotton line (AD1) as the receptor. A comprehensive analysis was conducted via the SLAF-seq genotyping and phenotyping under multiple environ-ments. This population showed a wide range of variation in yield components and fiber quality, and a total of 48 QTLs were de-tected including 19 for yield components and 29 for fiber quality. Among the QTLs for nine traits, 32 and 16 were on the At and Dt sub-genomes, respectively. Further analysis revealed that 30 QTLs showed positive additive effects, and 18 QTLs showed negative additive effects. The results of this study lay a foundation for the genetic improvement of upland cotton using the elite alleles of important agronomic traits from G. mustelinum.关键词
陆地棉/黄褐棉/导入系/产量/纤维品质/QTL/加性效应Key words
Upland cotton/G. mustelinum/CSILs/Yield/Fiber quality/QTL/Additive effect引用本文复制引用
沈超,李定国,聂以春,林忠旭..利用黄褐棉染色体片段导入系定位产量和纤维品质性状QTL[J].作物学报,2017,43(12):1733-1745,13.基金项目
本研究由国家转基因生物新品种培育重大专项(2016ZX08009001)资助.The study was supported by the National Major Project for Developing New GM Crops (2016ZX08009001). （2016ZX08009001）
