Genetic analysis of heterosis for maize grain yield and its components in a set of SSSL testcross populations
Genetic analysis of heterosis for maize grain yield and its components in a set of SSSL testcross populations
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一组 SSSL 测交群体中玉米籽粒产量及其组成部分的杂种优势遗传分析
DOI：
10.1007/s10681-016-1695-1
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发表时间：
2016-04
期刊：
影响因子：
1.9
通讯作者：
Tang, Jihua
中科院分区：
文献类型：
--
作者：
Li, Weihua;Wei, Feng;Sun, Pei;Tang, Jihua
The present study aimed to dissect the genetic basis of heterosis for grain yield and its components in maize (Zea maysL.). Quantitative trait loci (QTL) and heterotic loci (HL) were analyzed using a set of 203 single segment substitution lines (SSSLs) and its testcross population in three environments. Forty-one QTL were identified as responsible for grain yield, ear length, ear diameter, row number, kernel number per row, and 100-kernel weight in the SSSLs population, and 17 QTL were conserved across the three environments. In the heterosis analysis, 36 HL were identified for grain yield and five yield-related traits in the test population in the three environments. Among the HL, only six (16.7 %) for ear length, kernel number per row, 100-kernel weight, and grain yield were consistent with the results of QTL mapping. In addition, 16.7 % of the heterotic loci showed a dominant effect and 83.3 % showed an over-dominant effect. The results implied that dominance and over-dominance were two important components of heterosis in maize grain yield and yield-related traits in the present testcross population.
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影响因子：
3.7
作者：
Shi J;Li R;Zou J;Long Y;Meng J
通讯作者：
Meng J
影响因子：
5.4
作者：
Messmer, Rainer;Fracheboud, Yvan;Ribaut, Jean-Marcel
通讯作者：
Ribaut, Jean-Marcel
DOI：
10.3724/sp.j.1006.2011.01186
发表时间：
2011
期刊：
Acta Agronomica Sinica
影响因子：
--
作者：
S. Fang
通讯作者：
S. Fang
影响因子：
30.8
作者：
Song, Xian-Jun;Huang, Wei;Lin, Hong-Xuan
通讯作者：
Lin, Hong-Xuan
影响因子：
4.8
作者：
Ti-fu Zhang;Bo Li;Dengfeng Zhang;G. Jia;Zhi-yong Li;Shoucai Wang
通讯作者：
Ti-fu Zhang;Bo Li;Dengfeng Zhang;G. Jia;Zhi-yong Li;Shoucai Wang