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Mapping of QTLs Controlling Panicle Length and Effective Panicle Number of Rice

查看全文 作　　者：Jiali [1]LI;Ying [1]LIU;Wenjuan [2]SHI;Shengxin [1]YE;Qiang [1]PENG;Dashuang [1]ZHANG;Jianqiang [1]WU;Jifeng [1]WANG;Peiying [1]HUANG;Susong [1]ZHU 高影响力作者 机构地区：[1]Guizhou Rice Research Institute, Guiyang 550006, China;[2]Guizhou Seed Management Station, Guiyang 550001, China高影响力机构 出　　处：《Agricultural Biotechnology》索引2016年第5卷第5期,共4页高影响力期刊 基　　金：Supported by Science and Technology Project of Guizhou Province(G20124010);Science and Technology Project of Guizhou Province(20155003-3);Service Action Plan of Scientific Research Institutions in Guizhou Province(LH20144005);Construction Project of Modern Agricultural Industry System in Guizhou Province(GZCYTX2015-06) 摘　　要：Panicle length and effective panicle number of rice are closely related to yield.In this experiment,indica V20 B as female parent was crossed with javanica CPSLO17 as male parent,recombinant inbred line( RIL) populations were obtained by single seed descent method,and with the RIL populations as mapping populations,QTL mapping and analysis were performed to the two panicle traits,panicle length and effective panicle.A high-density genetic map was constructed with SLAF labels,interval mapping was performed by software Map QTL5 under the threshold of 3.9,and 7 QTLs were detected on 3 chromosomes in total.Among the 7 QTLs,5 QTLs controlling panicle length( q PL1-1,q PL1-2,q PL6-1,q PL6-2 and q PL6-3) were located on chromosomes 1 and 6,respectively,and showed the contribution rates of 6.41%,22.22%,6.15%,12.24% and 13.01%,respectively,their effect-increasing loci were mainly from CPSLO17,and q PL1-1 is a new QTL; and 2 QTLs controlling effective panicle number( q PN1 and q PN4) were located on chromosomes 1 and 4,respectively,and exhibited the contribution rates of 13.15% and 8.18%,respectively,and the effect-increasing loci were from parent V20 B.The marking of these loci lays a foundation for further cloning of genes controlling panicle length and effective panicle number and molecular marker-assisted selection. 关 键 词：QTL定位 有效穗数 穗长 控制 水稻 分子标记辅助选择 映射 遗传图谱构建
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