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2025年4月3日 星期四
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协青早B//协青早B/东乡野生稻BC1F5群体产量性状QTL分析
黄得润 陈洁 候丽娟 樊叶杨 庄杰云
中国水稻研究所
Identification of QTLs for Yield Traits in the BC1F5 Population of Xieqingzao B//Xieqingzao B/Dongxiang wild rice
jie yun Zhuang
浙江省富阳市水稻所路28号中国水稻研究所基因定位,邮编:311401
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摘要 两年同地种植协青早B//协青早B/东乡野生稻BC1F5群体的202个株系,利用含149个DNA标记的连锁图谱,检测到23个产量性状QTLs,包括每株穗数2个、每穗实粒数4个、每穗总粒数6个、结实率5个、千粒重4个和单株产量2个;有9个QTLs的增效等位基因来自东乡野生稻,包括每株穗数2个、每穗实粒数1个、每穗总粒数5个和千粒重1个,其中6个与前人应用野栽群体检测到的产量性状QTLs位于相似区间。这23个QTLs分布于除第11染色体外的所有水稻染色体中,其中18个形成8个QTL簇,含增效等位基因来自野生稻的2个、来自协青早B的4个,以及效应方向发生变化的2个。这些结果为东乡野生稻增产等位基因的发掘提供了基础。
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黄得润陈洁候丽娟樊叶杨庄杰云
Abstract:A BC1F5 population consisting of 202 lines developed from Xieqingzao B//Xieqingzao B/Dongxiang wild rice was tested for yield traits in two years in the same trial site. A total of 23 QTLs for yield traits were detected using a linkage map consisting of 149 markers. The numbers of QTLs detected for individual traits were two for the number of panicle per plant (NP), four for the number of filled grains per panicle (NFGP), six for the total number of spikelets per panicle (TNSP), five for spikelet fertility (SF), four for 1000-grain weight (TGWT) and two for grain yield per plant (GYD). Nine of the QTLs had the enhancing alleles from the Dongxiang wild rice, including two for NP, one for NFGP, five for TNSP and one for TGWT. Six of them were located in intervals where QTLs for yield traits have been reported in other studies using interspecies populations of rice. The 23 QTLs were distributed in all the 12 rice chromosomes except chromosome 11. Eighteen of the QTLs were located in eight clusters. The enhancing alleles were from Xieqingzao B in four clusters and from the Dongxiang wild rice in two clusters, while the allelic direction in the remaining clusters varied for different traits. Work is underway to construct populations for fine mapping the QTLs.
收稿日期: 2008-02-25     
通讯作者: 庄杰云   
引用本文:   
黄得润 陈洁 候丽娟 樊叶杨 庄杰云. 协青早B//协青早B/东乡野生稻BC1F5群体产量性状QTL分析[J]. , 2008, 16(6): 0-.
jie yun Zhuang. Identification of QTLs for Yield Traits in the BC1F5 Population of Xieqingzao B//Xieqingzao B/Dongxiang wild rice. , 2008, 16(6): 0-.
链接本文:  
http://journal05.magtech.org.cn/Jwk_ny/CN/      或     http://journal05.magtech.org.cn/Jwk_ny/CN/Y2008/V16/I6/0
 
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