MENG Yong-jie,CHEN Feng,SHUAI Hai-wei,et al.Construction of EMS Mutant Library and the Evaluation of Important Agronomic Traits of M1?in Glycine max[J].Soybean Science,2016,35(01):64-69.[doi:10.11861/j.issn.1000-9841.2016.01.0064]
大豆EMS突变体库构建及其M1代重要农艺性状评价
- Title:
- Construction of EMS Mutant Library and the Evaluation of Important Agronomic Traits of M1?in Glycine max
- Keywords:
- Keywords: Soybean; EMS; Mutant pool; Agronomic traits
- 文献标志码:
- A
- 摘要:
- 摘要:构建突变体库是进行遗传学与分子生物学研究的重要前提条件之一。当前大豆突变体数量的不足,严重制约了大豆功能基因组学研究的深入开展。以南方大面积推广的大豆品种-南豆12为材料,通过EMS诱变构建了大豆EMS突变体库。统计发现,M1种子田间出苗率为34.85%,表明EMS强烈抑制大豆种子的萌发和出苗。对随机选取的913株M1植株进行了株高、单株荚数等重要农艺性状的调查。结果表明:经EMS处理后,M1植株在株高、单株荚数、节间数等方面与对照存在显著差异、表型变异丰富,其中18.07%发生矮化,11.06%表现出多荚,另有3株不育株;群体间的节间个数极差达到18。这些数据表明已成功构建了大豆EMS突变体库。在进一步的研究中,将对单个突变体进行分离、分类,并克隆相应的重要功能基因,为深入研究大豆功能基因组学以及筛选适合玉米-大豆带状复合种植模式的高光效、抗倒伏大豆品种奠定基础。
- Abstract:
- Sufficient mutant pool is one of the most important preconditions for molecular biology and plant genetics studies.Lacking of enough mutants of soybean is a serious constraint to soybean functional genomics researching.In this study, soybean mutant pool was constructed by treating seeds of Nandou 12, which is prevailed in Southwestern China, by Ethyl Methyl Sulfone (EMS) treatment.The results showed that, emergence rate of M1?seeds in field barely reached to 34.85%, which indicated that EMS significantly inhibit the emergence of soybean seeds. Analysis of the important agronomic traits, including plant height, pods per plant and so on, of 913 plants of M1?generation showed that, plant height, pods per plant and internodes number were significantly different with Nandou 12.Compared to Nandou 12, 18.07% of the pool showed the dwarf phenotype; 11.06% revealed more pods per plant, and 3 sterile mutants were observed.Furthermore, the range (R) of internodes number of M1?lines reached to 18.Taken together, these results demonstrated that soybean mutant pool had been constructed primarily. Classification of single mutant and cloning of the corresponded gene(s) would be focused on the following studies, which would has a profound effect on soybean functional genetics study and screening perfect soybean varieties for maize-soybean stripe intercropping system.
参考文献/References:
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备注/Memo
基金项目:国家重点基础研究发展计划“973计划”(2011CB100402);国家现代农业产业技术体系(CARS-04-PS19)。第一作者简介:孟永杰(1990-),男,硕士,主要从事作物高产优质栽培理论与技术研究。通讯作者:舒凯(1982-),男,博士,副研究员,主要从事大豆遗传学和生理学研究。E-mail: kshu@sicau.edu.cn;杨文钰(1958-),男,教授,博导,主要从事作物栽培生理生态与区域农业研究。E-mail: mssiyangwy@sicau.edu.cn。