文献类型: 外文期刊
第一作者: Li, Sishen
作者: Li, Sishen;Jia, Jizeng;Wei, Xianyun;Zhang, Xiaocun;Li, Linzhi;Chen, Haimei;Fan, Yuding;Sun, Haiyan;Zhao, Xinhua;Lei, Tiandong;Xu, Yunfong;Jiang, Fangshan;Wang, Honggang;Li, Lihui
作者机构:
关键词: wheat;molecular marker;genetic linkage map;QTL;yield trait;SSR;EST-SSR;ISSR;SRAP and TRAP
期刊名称:MOLECULAR BREEDING ( 影响因子:2.589; 五年影响因子:2.75 )
ISSN: 1380-3743
年卷期: 2007 年 20 卷 2 期
页码:
收录情况: SCI
摘要: A new genetic linkage map was constructed based on recombinant inbred lines (RILs) derived from the cross between the Chinese winter wheat (Triticum aestivum L.) varieties, Chuang 35050 and Shannong 483 (ChSh). The map included 381 loci on all the wheat chromosomes, which were composed of 167 SSR, 94 EST-SSR, 76 ISSR, 26 SRAP, 15 TRAP, and 3 Glu loci. This map covered 3636.7 cM with 1327.7 cM (36.5%), 1485.5 cM (40.9%), and 823.5 cM (22.6%) for A, B, and D genome, respectively, and contained 13 linkage gaps. Using the RILs and the map, we detected 46 putative QTLs on 12 chromosomes for grain yield (GY) per m(2), thousand-kernel weight (TKW), spike number (SN) per m(2), kernel number per spike (KNS), sterile spikelet number per spike (SSS), fertile spikelet number per spike (FSS), and total spikelet number per spike (TSS) in four environments. Each QTL explained 4.42-70.25% phenotypic variation. Four QTL cluster regions were detected on chromosomes 1D, 2A, 6B, and 7D. The most important QTL cluster was located on chromosome 7D near the markers of Xwmc31, Xgdm67, and Xgwm428, in which 8 QTLs for TKW, SN, SSS and FSS were observed with very high contributions (27.53-67.63%).
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