|本期目录/Table of Contents|

[1]李翔,杜双林,朱文平,等.水稻隐性雄性不育突变体osnp3的败育特征及基因定位[J].江苏农业科学,2023,51(11):106-112.
 Li Xiang,et al.Sterile characterization and gene mapping of a recessive male sterile mutant osnp3 in rice[J].Jiangsu Agricultural Sciences,2023,51(11):106-112.
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水稻隐性雄性不育突变体osnp3的败育特征及基因定位(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:
106-112
栏目:
遗传育种与耕作栽培
出版日期:
2023-06-05

文章信息/Info

Title:
Sterile characterization and gene mapping of a recessive male sterile mutant osnp3 in rice
作者:
李翔杜双林朱文平张毅
云南大学农学院云南省多年生稻工程技术研究中心,云南昆明 650504
Author(s):
Li Xianget al
关键词:
水稻隐性雄性不育基因定位osnp3
Keywords:
-
分类号:
S511.035.1
DOI:
-
文献标志码:
A
摘要:
在粳稻品种中花11的组培后代中发现了1个无花粉型雄性不育突变体osnp3。该突变体花药细长且呈白色半透明状,花药中无成熟花粉粒,但其株高、有效穗数、穗粒数等农艺性状与野生型中花11无明显差异。花药半薄切片观察表明,突变体osnp3在花药发育过程中其绒毡层细胞延迟降解,小孢子细胞淀粉未充实,最终小孢子细胞退化降解,花药亦不能开裂。用突变体osnp3杂合株后代分离群体研究其遗传规律,表明突变体osnp3受1对隐性核基因控制。利用籼稻明恢63(MH63)与突变体osnp3杂交的F2定位群体将突变基因定位于第4染色体长臂C04D1、C04D3这2个标记之间,并与标记04008、C04D2共分离,物理距离约为0.96 Mb。测序表明,在定位区间内,1个编号为LOC_Os04g51070的基因第3外显子中插入了约4 kb的逆转座子,导致其功能缺失突变。该基因编码1个含有bHLH结构域的转录因子,推测其通过转录调控参与花药绒毡层细胞的降解;而其突变后绒毡层细胞未能正常降解,从而引起花粉败育。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2022-02-25
基金项目:国家自然科学基金(编号:31701390、31370349)。
作者简介:李翔(1996—),男,四川眉山人,硕士研究生,主要从事水稻雄性不育研究。E-mail:LX13214404718@163.com。
通信作者:张毅,博士,研究员,主要从事花粉发育与雄性不育调控研究。E-mail:zy03392002@126.com。
更新日期/Last Update: 2023-06-05