基于染色体置换系的野生稻抽穗期及紫色性状QTL的鉴定
文献类型: 中文期刊
作者: 李静;;孙妍;;齐兰;;苏龙;;丁膺宾;;许睿;;张莉珍;;王艳艳;;郑晓明;;张丽芳;;程云连;;乔卫华;;杨庆文
作者机构:
关键词: 野生稻;;染色体置换系;;抽穗期;;紫色;;QTL
期刊名称:植物遗传资源学报
ISSN: 1672-1810
年卷期: 2018 年
页码:
收录情况: 北大核心(2020版) ; CSCD(2020-2021年度) ; 农林核心(2020版) ; 科技核心(2020版)
摘要: 利用一套以9311为背景的普通野生稻染色体片段置换系群体为研究材料,进行野生稻相关QTL的定位与基因的鉴定.在多年多点的抽穗期调查数据基础上,结合200多个分子标记引物的基因型鉴定结果,定位到11个与抽穗期相关的QTL;选取携带相关QTL导入片段的两个置换系进一步研究,发现2个抽穗期主效QTL均为已克隆基因的等位基因.利用叶鞘、稃尖、柱头颜色与9311差异显著的一个单片段置换系定位到来自野生稻的紫色性状基因OrC,初步鉴定与栽培稻的等位基因功能不同.这些结果再次表明染色体片段置换系是行之有效的QTL定位以及基因发掘的遗传群体.通过对抽穗期、紫色性状相关QTL的定位与基因的鉴定,为进一步的功能研究提供了基因资源.
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