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草业学报 ›› 2011, Vol. 20 ›› Issue (4): 270-278.

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紫花苜蓿配子体发育遗传调控的研究进展

刘志鹏,张吉宇,王彦荣*   

  1. 兰州大学草地农业科技学院,甘肃 兰州 730020
  • 收稿日期:2010-06-08 出版日期:2011-04-25 发布日期:2011-08-20
  • 通讯作者: E-mail:wangyrlzu@126.com
  • 作者简介:刘志鹏(1979-),男,陕西咸阳人,副教授,博士。E-mail:lzp@lzu.edu.cn
  • 基金资助:
    国家重点基础研究发展计划(973)项目(2007CB108904),国家自然科学基金(31072072,30800593),国家科技支撑计划子课题(2006BAD16B02-6)和兰州大学中央高校基本科研业务费专项资金(lzujbky-2009-4)资助。

Research advances in genetic regulation of gametophyte development in Medicago sativa

LIU Zhi-peng, ZHANG Ji-yu, WANG Yan-rong   

  1. College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
  • Received:2010-06-08 Online:2011-04-25 Published:2011-08-20

摘要: 紫花苜蓿种子的实际产量远低于潜在产量,胚珠败育是导致这一现象的主要因素,而胚珠败育从本质上讲就是雌、雄配子体发育不正常。所以,紫花苜蓿的配子体发育与其产量具有极为重要的关系。紫花苜蓿的雄蕊和心皮分别属于第三、四轮花器官。这2个组织生成的雄、雌配子体是紫花苜蓿完成有性生殖所必需的。本研究在总结拟南芥、水稻和玉米等模式植物配子体遗传调控的基础上,紧密结合豆科模式植物蒺藜苜蓿等配子体的发育,从遗传学、分子生物学和细胞学等角度详细地总结了紫花苜蓿有性生殖中雌配子体、雄配子体发生和发育的研究进展。

Abstract: The actual seed yields of Medicago sativa are far less than the potential yield. The key reasons are ovule abortion and abnormal development of the gametophyte. Therefore, there is an important relationship between gametogenesis and seed yield of M. sativa. Stamens and carpels of M. sativa belong to the third and fourth wheel of the flower organ, respectively. The normal male and female gametophytes that develop from these two tissues are essential to sexual reproduction of M. sativa. Based on the gametophyte genetic regulation of model plants such as Arabidopsis thaliana, Oryza sativa, and Zea mays, and combined closely with the gametophyte development of the leguminosae model plant Medicago truncatula, this review discusses in detail the recent advances in male and female gametogenesis of M. sativa with a focus on the genetic regulation, molecular biology, and cytology of these processes.

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