数字农科院2.0

Quantitative trait locus analysis for pod- and kernel-related traits in the cultivated peanut (Arachis hypogaea L.)

文献类型： 外文期刊

作者： Chen, Weigang;Jiao, Yongqing;Cheng, Liangqiang;Huang, Li;Liao, Boshou;Tang, Mei;Ren, Xiaoping;Zhou, Xiaojing;Chen, Yuning;Jiang, Huifang

作者机构：

关键词： Peanut (Arachis hypogaea L.);QTL analysis;Pod length;Pod width;Seed length;Seed width

期刊名称： BMC GENETICS

ISSN： 1471-2156

年卷期： 2016 年 17 卷

页码：

收录情况： SCI

摘要： Background: The cultivated peanut (Arachis hypogaea L.) is an important oil and food crop in the world. Pod- and kernel-related traits are direct factors involved in determining the yield of the peanut. However, the genetic basis underlying pod- and kernel-related traits in the peanut remained largely unknown, which hampered the improvement of peanut through marker-assisted selection. To understand the genetic basis underlying pod- and kernel-related traits in the peanut and provide more useful information for marker-assisted breeding, we conducted quantitative trait locus (QTL) analysis for pod length and width and seed length and width by use of two F-2:3 populations derived from cultivar Fuchuan Dahuasheng x ICG 6375 (FI population) and cultivar Xuhua 13 x cultivar Zhonghua 6 (XZ population) in this study. Results: Two genetic maps containing 347 and 228 polymorphic markers were constructed for FI and XZ populations respectively. In total, 39 QTLs explaining 1.25-26.11 % of the phenotypic variations were detected in two populations. For the FI population, 26 QTLs were detected between the two environments, among which twelve were not mapped before. For the XZ population, thirteen QTLs were detected, among which eight were not reported before. One QTL for pod width was repeatedly mapped between the two populations. Conclusion: The QTL analyses for pod length and width and seed length and width were conducted in this study using two mapping populations. Novel QTLs were identified, which included two for pod length, four for pod width, five for seed length and one for seed width in the FI population, and three for pod length, three for pod width and two for seed width in the XZ population. Our results will be helpful for improving pod-and seed-related traits in peanuts through marker-assisted selection.

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[1]Additional file 2: of Quantitative trait locus analysis for pod- and kernel-related traits in the cultivated peanut (Arachis hypogaea L.). Huifang Jiang,Yuning Chen,Yongqing Jiao,Huang, Li,Weigang Chen,Boshou Liao,Xiaoping Ren,Xiaojing Zhou,Liangqiang Cheng,Tang, Mei

[2]Additional file 1: of Quantitative trait locus analysis for pod- and kernel-related traits in the cultivated peanut (Arachis hypogaea L.). Yuning Chen,Tang, Mei,Xiaojing Zhou,Yongqing Jiao,Boshou Liao,Liangqiang Cheng,Xiaoping Ren,Weigang Chen,Huifang Jiang,Huang, Li

[3]Quantitative trait locus analysis for pod- and kernel-related traits in the cultivated peanut (Arachis hypogaea L.). Xiaoping Ren,Huifang Jiang,Huang, Li,Xiaojing Zhou,Liangqiang Cheng,Yuning Chen,Boshou Liao,Tang, Mei,Weigang Chen,Yongqing Jiao

[4]Additional file 4: of Quantitative trait locus analysis for pod- and kernel-related traits in the cultivated peanut (Arachis hypogaea L.). Xiaoping Ren,Huang, Li,Huifang Jiang,Yongqing Jiao,Tang, Mei,Liangqiang Cheng,Weigang Chen,Yuning Chen,Xiaojing Zhou,Boshou Liao

[5]Additional file 3: of Quantitative trait locus analysis for pod- and kernel-related traits in the cultivated peanut (Arachis hypogaea L.). Huifang Jiang,Yongqing Jiao,Xiaoping Ren,Xiaojing Zhou,Liangqiang Cheng,Weigang Chen,Boshou Liao,Huang, Li,Yuning Chen,Tang, Mei

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