|本期目录/Table of Contents|

[1]许有嫔,吉冰璇,王林叶,等.水稻稀穗突变体lax3的遗传分析及基因定位[J].江苏农业科学,2023,51(11):87-91.
 Xu Youpin,et al.Genetic analysis and gene mapping of lax3,a laxy panicle mutant in rice[J].Jiangsu Agricultural Sciences,2023,51(11):87-91.
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水稻稀穗突变体lax3的遗传分析及基因定位(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第51卷
期数:
2023年第11期
页码:
87-91
栏目:
遗传育种与耕作栽培
出版日期:
2023-06-05

文章信息/Info

Title:
Genetic analysis and gene mapping of lax3,a laxy panicle mutant in rice
作者:
许有嫔1吉冰璇2王林叶2张启军12
1.西华师范大学生命科学学院,四川南充 637009; 2.江苏省农业科学院粮食作物研究所,江苏南京 210014
Author(s):
Xu Youpinet al
关键词:
水稻稀穗lax3(t)基因精细定位
Keywords:
-
分类号:
S511.032
DOI:
-
文献标志码:
A
摘要:
穗粒数是构成作物产量的三大要素之一,与作物产量具有显著的正相关关系,定位、克隆与穗粒数有关的新基因为解析作物产量构成具有十分重要的意义。利用穗颈注射法将高粱基因组DNA导入水稻品种9311中,在后代筛选到1个稀穗突变体,暂定名为lax3。研究了该突变体的主要农艺性状和稀穗的遗传方式,并对该稀穗突变基因进行了精细定位。研究结果表明,该稀穗突变体lax3在株高、分蘖、枝梗和穗粒数上与受体9311相比存在显著的差异。遗传分析表明该突变体的稀穗性状受1对隐性核基因控制,用lax3/02428 F2群体将该基因初步定位在水稻第4染色体上,位于SSR标记RM16335和RM16424之间,交换单株分别为5株和3株。通过扩大遗传群体和进一步开发标记,最后将该基因定位在RM16349和Indel标记In4-8之间,两者之间的物理距离约为96.9 kb。本研究结果为进一步克隆该基因、解析水稻穗粒结构调控机制和分子辅助选育奠定一定的基础。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2022-06-30
基金项目:[JP4]国家转基因生物新品种培育重大专项(编号:2016ZX08001004)。
作者简介:许有嫔(1990—),女,贵州修文人,博士,主要从事植物病理研究,E-mail:xuyoupinwk@163.com;共同第一作者,吉冰璇(1995—),女,山西定襄人,硕士研究生,主要从事植物遗传研究。E-mail:154325150@qq.com。
通信作者:张启军,博士,副研究员,主要从事水稻遗传与分子育种研究。E-mail:zhangqijun75@163.com。
更新日期/Last Update: 2023-06-05