| 花生荚果大小和重量相关性状的QTL定位分析 |
| |
| 引用本文： | 周小静,雷永,夏友霖,漆燕,晏立英,任小平,黄莉,罗怀勇,刘念,陈伟刚,陈玉宁,廖伯寿,姜慧芳.花生荚果大小和重量相关性状的QTL定位分析[J].中国油料作物学报,2019,41(6):869. |
| |
| 作者姓名： | 周小静 雷永 夏友霖 漆燕 晏立英 任小平 黄莉 罗怀勇 刘念 陈伟刚 陈玉宁 廖伯寿 姜慧芳 |
| |
| 作者单位： | 1. 中国农业科学院油料作物研究所/ 农业农村部油料作物生物学与遗传育种重点实验室，湖北武汉，430062；
2. 四川省南充市农业科学研究所，四川南充，637000 |
| |
| 摘 要： | 荚果相关性状是花生产量构成的重要成分。为解析花生产量及产量相关性状的遗传基础，挖掘稳定存在的QTL，以荚果大小和重量存在显著差异的中花5号和ICGV 86699为亲本衍生的包含166个重组自交系群体为材料，对3个荚果相关性状中荚果长、荚果宽在5个环境，百果重在6个环境下进行性状考察，并结合群体的基因分型数据进行QTL定位分析。共检测到9个荚果长QTL、10个荚果宽QTL和12个百果重QTL。有10个QTL在多个环境被重复检测到，其中6个QTL在不同地点重复检测到，为稳定表达QTL，且稳定表达的QTL中5个（qPLB06.2、 qPLB06.3、qPWB06.2、qHPWB04.3、qHPWB06.3）在至少1个环境中贡献率超过10%。共发现5个QTL簇，其中位于 B06上的QTL簇Ⅳ和Ⅴ，均在多个环境下检测到稳定调控荚果长、荚果宽和百果重的QTL共定位，表明这些荚果相关性状具有明显的遗传相关性。
|
| 关 键 词： | 花生 荚果 QTL定位 稳定QTL QTL簇 |
QTL mapping for traits of pod size and weight in cultivated peanut (Arachis hypogaea L.) |
| |
| ZHOU Xiao-jing,LEI Yong,XIA You-lin,QI Yan,YAN Li-ying,REN Xiao-ping,HUANG Li,LUO Huai-yong,LIU Nian,CHEN Wei-gang,CHEN Yu-ning,LIAO Bo-shou,JIANG Hui-fang.QTL mapping for traits of pod size and weight in cultivated peanut (Arachis hypogaea L.)[J].Chinese Journal of Oil Crop Sciences,2019,41(6):869. |
| |
| Authors: | ZHOU Xiao-jing LEI Yong XIA You-lin QI Yan YAN Li-ying REN Xiao-ping HUANG Li LUO Huai-yong LIU Nian CHEN Wei-gang CHEN Yu-ning LIAO Bo-shou JIANG Hui-fang |
| |
| Institution: | 1. Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Ge? netic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan 430062, China;
2. Nanchong Acad? emy of Agricultural Sciences, Nanchong 637000, China |
| |
| Abstract: | Pod-related traits are important to peanut yield. To better understand genetic basis of peanut yield, QTL mapping for pod-related traits was conducted using 166 recombinant inbred lines. The lines were derived from parents Zhonghua 5 and ICGV 86699 which were significantly different in pod size and weight. Pod length and width in 5 environments and 100-pod weight in 6 environments were investigated for QTL mapping by population phenotyping and by genotyping. Nine pod-length QTLs, 10 pod-width QTLs and 12 100-pod-weight QTLs were de? tected respectively. Among them, 10 QTLs were repeatedly detected in multiple environments (including 6 stable QTLs detected in different locations). Among the 6 stable ones, 5 QTLs (qPLB06.2, qPLB06.3, qPWB06.2, qHP? WB04.3 and qHPWB06.3) had more than 10% PVE (phenotypic variation explained) in at least one environment. Five QTL clusters were identified. QTL clusters Ⅳ and Ⅴ, located on B06, were collocated with pod-related QTLs, which were stably detected in multiple environments. The collocations showed obvious genetic correlations among the pod traits. |
| |
| Keywords: | cultivated peanut pod QTL mapping stable QTL QTL cluster |
|
| 点击此处可从《中国油料作物学报》浏览原始摘要信息 |
| 点击此处可从《中国油料作物学报》下载免费的PDF全文 |
|
