Quantitative trait locus mapping for panicle exsertion length in common wheat using two related recombinant inbred line populations
Quantitative trait locus mapping for panicle exsertion length in common wheat using two related recombinant inbred line populations
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使用两个相关重组自交系群体对普通小麦穗外伸长度进行数量性状基因座作图
DOI：
10.1007/s10681-019-2433-2
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发表时间：
2019-05
期刊：
影响因子：
1.9
通讯作者：
Liu Yaxi
中科院分区：
文献类型：
--
作者：
Tao Yang;Yi Xin;Lin Yu;Wang Zhiqiang;Wu Fangkun;Jiang Xiaojun;Liu Shihang;Deng Mei;Ma Jian;Chen Guangdeng;Wei Yuming;Zheng Youliang;Liu Yaxi
小麦(Triticum aestivum L.)育种计划是提高产量潜力的一个新兴目标，是对小麦理想类型的补充。在这项研究中，我们的目的是促进对小麦穗外露遗传机制的理解。以两个亲本相同的重组自交系群体H461为材料，对控制PEL的数量性状基因座(QTL)进行了鉴定和比较。利用两个高密度遗传连锁图谱，在1B、1D、2B、2D、4A、4B、5B、6D、7A和7B染色体上检测到13个可能的PEL QTL，每个QTL可解释5.7-15.6%的表型变异。在这13个QTL中，有9个是独立的；另外2对来自H461的QTL被新开发的高分辨率熔融标记验证为共同的QTL。此外，测定株高，对8个主效QTL进行协方差QTL分析，其中3个来自小麦品种CM107，不受株高的影响。分析了8个主效QTL对产量相关性状(PH、穗长、每穗小穗数、小穗密度、每穗粒数、粒长、千粒重)的多效性效应。这8个QTL对小麦育种中的精细定位和分子标记辅助选择具有一定的参考价值。
The improvement of panicle exsertion length (PEL) in wheat (Triticum aestivum L.) breeding programs is an emerging objective to improve yield potential, and serves as a complement to the wheat ideotype. In this study we aimed to advance the current understanding of genetic mechanisms underlying panicle exsertion in wheat. Two related recombinant inbred line populations sharing common parent H461 were used to identify and compare quantitative trait loci (QTL) controlling PEL. Using two high-density genetic linkage maps, 13 putative QTL for PEL were detected on chromosomes 1B, 1D, 2B, 2D, 4A, 4B, 5B, 6D, 7A, and 7B; each QTL explained 5.7–15.6% of the phenotypic variation. Among these 13 QTL, nine were independent; the other two pairs derived from H461 were validated to be common QTL based on newly developed high-resolution melt markers. Further, plant height (PH) was measured to perform covariance QTL analysis with eight major QTL; three of them derived from the wheat variety CM107 were not affected by PH. Pleiotropic effects on yield-related traits (PH, spike length, spikelet number per spike, spikelet density, kernel number per spike, kernel length, and thousand kernel weight) of the eight major QTL were also evaluated. These eight QTL may be valuable for fine mapping and marker-assisted selection in wheat breeding programs.
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影响因子：
3.8
作者：
J. Snape;C. N. Law;A. Worland
通讯作者：
J. Snape;C. N. Law;A. Worland
QTL的晶粒形状，晶粒重量，测试重量，铣削产量和植物高度在弹簧麦交叉RL44452/'交流域之间的关系。
影响因子：
3.7
作者：
Cabral AL;Jordan MC;Larson G;Somers DJ;Humphreys DG;McCartney CA
通讯作者：
McCartney CA
影响因子：
16.6
作者：
Crowell S;Korniliev P;Falcão A;Ismail A;Gregorio G;Mezey J;McCouch S
通讯作者：
McCouch S
影响因子：
5.4
作者：
Chai, Lingling;Chen, Zhaoyan;Ni, Zhongfu
通讯作者：
Ni, Zhongfu
DOI：
10.3835/plantgenome2016.10.0101
发表时间：
2017-07
期刊：
The Plant Genome
影响因子：
--
作者：
Yaopeng Zhou;Benjamin Conway;D. Miller;D. Marshall;A. Cooper;Paul Murphy;S. Chao;G. Brown-Guedira;José M. Costa
通讯作者：
Yaopeng Zhou;Benjamin Conway;D. Miller;D. Marshall;A. Cooper;Paul Murphy;S. Chao;G. Brown-Guedira;José M. Costa