Dynamic analysis of QTLs on tiller number in rice (Oryza sativa L.) with single segment substitution lines.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Gui-Fu LiuGuoyou Ye

Abstract

Twelve single segment substitution lines (SSSLs) in rice, which contain quantitative trait loci (QTLs) for tiller number detected previously, were used to study dynamic expression of the QTLs in this study. These SSSLs and their recipient, Hua-Jing-Xian 74 (HJX74), were used to produce 78 crossing combinations first, and then these combinations and their parents were grown in two planting seasons with three cropping densities. Tiller number was measured at seven developmental stages. QTL effects including main effects (additive, dominance and epistasis), QTL × season and QTL × density interaction effects were analyzed at each measured stage. The additive, dominant and epistatic effects of the 12 QTLs as well as their interaction effects with the seasons and with the densities all display dynamic changes with the development. Eight QTLs are detected with significant additive effects and/or additive × season and/or additive × density interaction effects at least at one developmental stage, and all QTLs have significant dominant and epistatic effects and/or interaction effects involved in. For most of the QTLs dominant effects are much bigger than additive effects, showing overdominance. Each QTL interacts at least with eight othe...Continue Reading

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Citations

Dec 5, 2012·Yi chuan = Hereditas·Shu-Jun OuCheng-Cai Chu
Nov 20, 2015·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Elise AlbertMathilde Causse
Jul 17, 2014·Journal of Applied Genetics·Donghui FuMin Zhang
Feb 7, 2017·Breeding Science·Md Nashir UddinYoshimichi Fukuta
Aug 28, 2020·Frontiers in Plant Science·Md Nashir Uddin, Yoshimichi Fukuta
Mar 12, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Yuliang ZhouRuizhen Zeng
Sep 19, 2021·Molecular Genetics and Genomics : MGG·Xin LuanShaokui Wang

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