RICE SCIENCE ›› 2007, Vol. 14 ›› Issue (1): 1-6 .

• Research Paper •     Next Articles

Utilization of eui Gene from a Recessive Tall Rice Mutant 02428h in
Breeding

WANG Cai-lin, ZHAO Ling, ZHU Zhen, ZHANG Ya-dong   

  1. Institute of Food Crops, Jiangsu Academy of Agricultural Sciences; Jiangsu High Quality Rice R & D Center, Nanjing 210014, China
  • Received:2006-11-11 Online:2007-03-28 Published:2007-03-28
  • Contact: WANG Cai-lin
  • Supported by:

    the special program for Agricultural Structure Adjustment funded by Ministry of Agriculture, and Ministry of Finance,China (Grant No. 05-01-05E); and Jiangsu Provincial High-Tech Research Program (Grant Nos. BG2004301,BG2004304, and BG2005301).

Abstract: In order to improve the panicle extrusion of photo- and thermo-sensitive sterile line ‘Pei’ai 64S’ by using elongated
uppermost internode (eui) gene of the wide compatibility rice mutant ‘02428h’, a new photo- and thermo-sensitive sterile line ‘P8hS’
characterized with elongated uppermost internode was developed by transferring the eui gene into Pei’ai 64S through three
successive backcrossing. Compared with Pei’ai 64S, the plant height of P8hS was 35.6 cm higher resulted from the elongation of
the uppermost and the second internodes from the top. The panicle extrusion of Pei’ai 64S was completely improved and positive
effects were found on the main economic characters of P8hS and its hybrids by introducing eui gene into Pei’ai 64S.

Key words: rice (Oryza sativa), recessive tall, elongated uppermost internode gene, inheritance, backcrossing