QTL Mapping for Grain Yield Conditioned on Its Component Traits in Two Ril Populations of Bread Wheat

被引：0
作者：
A. M. Ding
F. Cui
J. Li
C. H. Zhao
L. Wang
X. L. Qi
Y. G. Bao
X. F. Li
H. G. Wang
机构：
[1] Shandong Agricultural University,State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, Agronomy College
[2] Tobacco Research Institute of Chinese Academy of Agricultural Sciences,undefined
[3] CAS Center for Agricultural Resources Research,undefined
[4] Institute of Genetics and Developmental Biology,undefined
[5] Handlan Industrial Zone Tianxing Biotechnology CO.,undefined
[6] LTD.,undefined
[7] Municipal Academy of Agricultural Sciences,undefined
来源：
Cereal Research Communications | 2013年 / 41卷
关键词：
grain yield; yield components; conditional analysis; QTL mapping;
D O I：
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中图分类号：
学科分类号：
摘要：
Grain yield (GY) and yield components (YC) were investigated using two F8: 9 RILs, comprising 229 and 485 lines, respectively. A conditional analysis was conducted to generate conditional values for GY independent of each YC. Then both unconditional and conditional values were analyzed to map QTLs with additive effect. In both RILs, up to 23 unconditional and conditional QTLs were detected. However, only two QTLs were identified repeatedly among environments. All QTLs, except for 4 detected in unconditional mapping, were also identified as conditional QTLs, whereas a number of QTLs were additionally detected in conditional mapping. The number of QTLs detected that affected GY was different with respect to component-special influences. Our results revealed that the contributions of YC influencing QTL expression related to GY differed.
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页码：45 / 53
页数：8
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