CLC number: S33
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
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GAO Yong-ming, ZHU Jun, SONG You-shen, HE Ci-xin, SHI Chun-hai, XING Yong-zhong. Analysis of digenic epistatic effects and QE interaction effects QTL controlling grain weight in rice[J]. Journal of Zhejiang University Science A, 2004, 5(4): 371-377.
@article{title="Analysis of digenic epistatic effects and QE interaction effects QTL controlling grain weight in rice",
author="GAO Yong-ming, ZHU Jun, SONG You-shen, HE Ci-xin, SHI Chun-hai, XING Yong-zhong",
journal="Journal of Zhejiang University Science A",
volume="5",
number="4",
pages="371-377",
year="2004",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2004.0371"
}
%0 Journal Article
%T Analysis of digenic epistatic effects and QE interaction effects QTL controlling grain weight in rice
%A GAO Yong-ming
%A ZHU Jun
%A SONG You-shen
%A HE Ci-xin
%A SHI Chun-hai
%A XING Yong-zhong
%J Journal of Zhejiang University SCIENCE A
%V 5
%N 4
%P 371-377
%@ 1869-1951
%D 2004
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2004.0371
TY - JOUR
T1 - Analysis of digenic epistatic effects and QE interaction effects QTL controlling grain weight in rice
A1 - GAO Yong-ming
A1 - ZHU Jun
A1 - SONG You-shen
A1 - HE Ci-xin
A1 - SHI Chun-hai
A1 - XING Yong-zhong
J0 - Journal of Zhejiang University Science A
VL - 5
IS - 4
SP - 371
EP - 377
%@ 1869-1951
Y1 - 2004
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2004.0371
Abstract: immortalized F2 population of rice (Oryza sativa L.) was developed by randomly mating F1 among recombinant inbred (RI) lines derived from (Zhenshan 97B × Minghui 63), which allowed replications within and across environments. QTL (quantitative trait loci) mapping analysis on kilo-grain weight of immortalized F2 population was performed by using newly developed software for QTL mapping, QTLMapper 2.0. Eleven distinctly digenic epistatic loci included a total of 15 QTL were located on eight chromosomes. QTL main effects of additive, dominance, and additive × additive, additive × dominance, and dominance × dominance interactions were estimated. Interaction effects between QTL main effects and environments (QE) were predicted. Less than 40% of single effects, most of which were additive effects, for identified QTL were significant at 5% level. The directional difference for QTL main effects suggested that these QTL were distributed in parents in the repulsion phase. This should make it feasible to improve kilo-grain weight of both parents by selecting appropriate new recombinants. Only few of the QE interaction effects were significant. Application prospect for QTL mapping achievements in genetic breeding was discussed.
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