超级稻品种中嘉早17产量相关性状QTL定位研究
# 共同第一作者;
收稿日期: 2015-04-08
修回日期: 2015-07-20
网络出版日期: 2016-01-10
基金资助
浙江省自然科学基金资助项目(LY14C130012);浙江省公益基金资助项目(2015C32045)
QTL Mapping of Yield Related Traits in Super Rice Variety Zhongjiazao 17
# These authors contributed equally to this work;
Received date: 2015-04-08
Revised date: 2015-07-20
Online published: 2016-01-10
以中嘉早17/D50 F2和F2:3群体为材料,考查各群体株系产量相关农艺性状,同时构建其遗传连锁图谱,最后定位到与产量性状相关的66个QTL,其贡献率变幅为0.08% ~ 20.45%,分布于除第9染色体外的其他各染色体上。两个群体在第3、7、10染色体某区段同时定位到多个与产量性状相关的QTL, 这些QTL的加性效应来自中嘉早17。在定位到的66个QTL中,F2和F2:3群体均检测到,且贡献率较大的QTL qPH-10(株高)、qFLW-4(剑叶宽)、qTGW-2(千粒重) 加性效应均来自中嘉早17。初步检测到超级稻品种中嘉早17携带多个高产QTL,为今后将中嘉早17的优良基因导入其他水稻品种进而培育产量更高、综合性状更优良的超级稻新品种提供理论和技术支持。
圣忠华, 朱子亮, 马宁, 李威, 贺记外, 魏祥进, 邵高能, 王建龙, 胡培松, 唐绍清 . 超级稻品种中嘉早17产量相关性状QTL定位研究[J]. 中国水稻科学, 2016 , 30(1) : 35 -43 . DOI: 10.16819/j.1001-7216.2016.5061
The rice yield related agronomic traits were examined, and the genetic linkage maps were constructed with the F2 populations derived from Zhongjiazao 17 × D50. A total of 66 QTLs for yield related traits were mapped, with the contribution rate ranging from 0.08%~20.45%, distributed on all the 12 chromosomes except for chromosome 9. Numbers of QTLs for yield related traits were mapped in the same intervals on Chr.3, Chr.7 and Chr.10,respectively, in F2 or F2:3 populations, and the positive alleles were contributed by Zhongjiazao 17. Among the mapped 66 QTLs,these detected in both F2 and F2:3 populations with high contribution rate include qPH-10, qFLW-4, qTGW-2,of which the positive alleles were also contributed by Zhongjiazao 17. In total, 66 QTLs for yield related traits were preliminarily examined in super rice variety Zhongjiazao 17, which will provide theoretical and technical supports to breed new super rice varieties with higher yield and better comprehensive characteristics by transfering excellent genes from Zhongjiazao 17 into other rice varieties.
Key words： QTL mapping; yield related trait; super rice
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