RICE SCIENCE ›› 2008, Vol. 15 ›› Issue (2): 153-156 .

• Short Communication • Previous Articles     Next Articles

Genetic Analysis and Primary Mapping of pms4, a Photoperiod-Sensitive Genic Male Sterility Gene in Rice (Oryza sativa)

HUANG Ting-you; WANG Zhi; HU Yun-gao; SHI Shou-pei; PENG Tao; CHU Xu-dong, SHI Jun; XIANG Zu-fen; LIU Ding-you   

  1. Mianyang Agricultural Science Research Institute, Mianyang 621023, China
  • Received:2008-03-28 Online:2008-06-28 Published:2008-06-28
  • Contact: HUANG Ting-you
  • Supported by:
    the Crop Breeding Program of Sichuan Province (Grant No. 2006YZGG01) and Pre-grant from Youth Science & Technology Foundation of Sichuan Province (Grant No. 07ZQ026-126).

Abstract: To understand the genetic characteristics of a new photoperiod-sensitive genic male sterile line Mian 9S, some reciprocal crosses were made between Mian 9S and six indica rice materials, Yangdao 6, Luhui 602, Shuihui 527, Mianhui 725, Fuhui 838 and Yixiang 1B. Genetic analysis results suggested that the photoperiod-sensitive genic male sterility (PGMS) of Mian 9S was controlled by a single recessive nuclear gene. Thus, the F2 population derived from the cross of Yangdao 6/Mian 9S was used to map the PGMS gene in Mian 9S. By using SSR markers, the PGMS gene of Mian 9S was mapped on one side of the markers, RM6659 and RM1305, on rice chromosome 4, with the genetic distances of 3.0 cM and 3.5 cM, respectively. The gene was a novel PGMS gene and designated tentatively as pms4. In addition, the application of the pms4 gene was discussed.

Key words: genetic analysis, gene mapping, photoperiod-sensitive genic male sterility, rice (Oryza sativa)