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玉米单倍体自然加倍几个遗传问题的探讨
Genetic Studies on Haploid Spontaneous Doubling in Maize
投稿时间:2016-04-18  最后修改时间:2016-05-19
中文关键词:玉米,单倍体,自然加倍,遗传特性
英文关键词:maize  haploid  spontaneous doubling  genetic trait
基金项目:国家自然科学基金(31560392);现代农业产业技术体系(CARS-02-09);863计划(2011AA10A103)第一作者:吴鹏昊(1984-),男,河南许昌人,2014年博士毕业于中国农业大学国家玉米改良中心,现就职于新疆农业大学,硕士研究生导师,目前主要从事玉米单倍体育种研究。E-mail:craie788@126.com通讯作者:陈绍江(1963-),男,河南永城人,中国农业大学教授,博士,博士生导师,中国农业工程学会理事,目前主要从事玉米遗传育种研究。Email:chen368@126.com 玉米单倍体自然加倍几个遗传问题的探讨
作者单位E-mail
吴鹏昊 College of Agriculture and biotechnology/National Maize Improvement Center of China/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University craie788@126.com 
任姣姣 College of Agriculture and biotechnology/National Maize Improvement Center of China/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University  
田小龙 College of Agriculture and biotechnology/National Maize Improvement Center of China/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University  
王乐乐 College of Agriculture and biotechnology/National Maize Improvement Center of China/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University  
李国梁 College of Agriculture and biotechnology/National Maize Improvement Center of China/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University  
刘文欣 College of Agriculture and biotechnology/National Maize Improvement Center of China/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University  
陈绍江 College of Agriculture and biotechnology/National Maize Improvement Center of China/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University  
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中文摘要:
      玉米单倍体加倍是DH育种中的关键环节之一,然而较低的雄穗自然加倍能力往往限制了DH育种技术的广泛推广,因此需要对其自然加倍的遗传特性进行深入探讨。本研究通过对多个不同遗传背景来源的单倍体的雄穗自然加倍能力进行严格地统计学差异比较,发现单倍体育性恢复主要受核基因的控制,不受细胞质基因的调控;诱导率对单倍体雄穗自然加倍能力可能没有影响;经过加倍一代的后代单倍体其自然加倍能力与其自交系相比也没有显著差异。
英文摘要:
      Haploid spontaneous doubling in maize is one of the key steps in DH breeding, but average low rate of male fertility limits the broadly application of DH technology. Therefore it is need to make a deep study to the genetic traits of its spontaneous doubling. In this study, many kinds of haploids with different genetic background were investigated with their male fertility and compared with each other, It is found that haploid spontaneous doubling is mainly controlled by by gene in nuclear, instead of genes in the cytoplasm; the haploid induction rate has little effect on haploid male fertility; there is also no significant difference of haploid spontaneous doubling between haploids from DH1 and their corresponded inbred.
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