RICE SCIENCE ›› 2007, Vol. 14 ›› Issue (4): 247-255 .

• Research Paper • Previous Articles     Next Articles

Construction and Testing of a Primary Microsatellite Database of Major Rice Varieties in China

YING Jie-zheng 1; SHI Yong-feng 1; E Zhi-guo 1; ZENG Rui-zhen 2; CHEN Jie 1, 3; ZHU Zhi-wei 1; ZHUANG Jie-yun 1
  

  1. 1 China National Rice Research Institute, Hangzhou 310006, China; 2 Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China; 3 International Rice Research Institute, DAPO 7777, Metro Manila, Philippines
  • Received:2007-10-09 Online:2007-12-28 Published:2007-12-28
  • Contact: ZHUANG Jie-yun
  • Supported by:

    national projects 2003DEB5J046 and 06249, and the project 200524007 of Zhejiang Province.

Abstract: Sixty-three major inbred varieties and parental lines of major F1 hybrids used in the commercial rice production in China were assayed with rice microsatellites screened in a previous study and additional microsatellites on four chromosomes. A set of 24 markers was selected and proposed for its application in the variety identification of rice, which are distributed on all the 12 rice chromosomes with 2 markers on each chromosome. The 63 major varieties and parental lines, as well as 41 major F1 hybrids, were genotyped with the markers. Alleles detected in each line at each marker locus were verified. By matching marker genotypes of corresponding F1, maternal and paternal lines of hybrid rice, high reliability of the maternal lines was verified, data on the paternal lines were modified, and a false hybrid was removed. A database containing genotype data of 103 major rice varieties and parental lines at the 24 marker loci was constructed and analyzed.

Key words: simple sequence repeat, rice (Oryza sativa), variety identification, frequency of polymorphism, database