Welcome to Acta Prataculturae Sinica ! Today is Share:

Acta Prataculturae Sinica ›› 2011, Vol. 20 ›› Issue (4): 270-278.

Previous Articles     Next Articles

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

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.

CLC Number: