作物学报2017，Vol.43Issue(10)：1434-1447,14.DOI:10.3724/SP.J.1006.2017.01434
超级稻品种中嘉早17高产相关性状的QTL定位
Identification of QTLs Associated with High Yield of Super Rice Variety Zhongjiazao 17
摘要
Abstract
Rice yield has obvious effect on national food security. The further excavation of high yield related genes is of great significance. In this research, a doubled haploid population (DH population) of Zhongjiazao 17 (YK17) × D50 was constructed by using the anther culture technique. The yield related traits including effective panicles per plant, grain number per panicle, seed setting rate and 1000-grain weight in three different planting environments (Lingshui, Hainan planting environment, high yield field in Hangzhou planting environment, low yield field in Hangzhou planting environment) were examined. Further, genetic linkage map of the DH population was constructed. A total of 74 QTLs for yield related traits were detected by QTL mapping, these QTLs were distributed on all the 12 chromosomes of rice with the contribution rate ranging from 3.7％ to 43.2％. Among these QTLs, qPH1-1 and qFLL12 were detected repeatedly in three different planting environments, and the contribution rate of them was 8.9％, 24.2％, 43.2％ and 16.6％, 17.9％, 18.9％, respectively. In addition, qPH3, qFLL10-2, qFLW11-1, qPL11, qGNP11,qSSR3, and qTGW5-1 were detected repeatedly in two different planting environments with the contribution rate ranging from 7.4％ to 42.2％. The analysis of QTL × environment interaction showed that qPH1-1, qFLW2, qEPP1, and qTGW5-1 had signifi-cant additive × environment interaction effects. GW5 sequencing, located in qTGW5-1, indicated that GW5 alleles of high yield lines and low yield lines were inherited from the parents YK17 and D50, respectively, which was consistent with that the additive effect of qTGW5-1 derived from YK17. This research provides theoretical basis and technical support for further excavation of rice yield related genes and breeding super high yield varieties by using molecular polymerization breeding.关键词
产量性状/QTL定位/DH群体/中嘉早17/水稻Key words
Yield related traits/QTL mapping/DH population/Zhongjiazao 17/Rice引用本文复制引用
胡大维,谢黎虹,唐绍清,圣忠华,陈炜,李潜龙,魏祥进,邵高能,焦桂爱,王建龙,胡培松..超级稻品种中嘉早17高产相关性状的QTL定位[J].作物学报,2017,43(10):1434-1447,14.基金项目
本研究由浙江省科技计划面上项目(2015C32045),国家自然科学基金青年基金项目(31501285),中央级公益性科研院所基本科研业务专项基金(2014RG002-1),国家重点研发计划项目(2016YFD0101801)和国家转基因生物新品种培育重大专项(2016ZX08001006)资助.This study was supported by Zhejiang Science and Technology Projects (2015C32045),China Natural Science Foundation (31501285),the Central Level,Non-profit,Scientific Research Institute Basic R and D Operations Special Fund (2014RG002-1),the National Key Research and Development Program of China (2016YFD0101801),and the National Major Project for Developing New GM Crops (2016ZX08001006). （2015C32045）
