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Hystrix patula与Pseudoroegneria libanotica属间杂种的细胞学研究
余小芳;周永红;张海琴;丁春邦;袁明;
1.四川农业大学小麦研究所;2.四川农业大学小麦研究所 四川都江堰611830;3.四川都江堰611830
摘要:
为研究猬草Hystrixpatula的染色体组组成,进行了H.patula与Pseudoroegnerialibanotica的人工杂交,获得杂种F1,观察了亲本和杂种F1花粉母细胞减数分裂染色体配对行为。杂种F1染色体配对较高,84%的细胞形成7个或7个以上二价体,其构型为6.08Ⅰ+7.48Ⅱ,C-值为0.69。结果表明,H.patula含有St染色体组。
关键词:  Hystrix patula    Pseudoroegneria libanotica    属间杂交    减数分裂    染色体组
DOI:
分类号:
Fund project:国家自然科学基金(30270099,30470135);; 长江学者和创新团队发展计划(IRT0453);; 四川省教育厅重点项目(05-03)~~
Abstract:
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