[Genetic analysis and molecular tagging of a gene for non-palea in rice].
The mutants involved in the development of floral organ are good material for understanding the molecular genetic mechanisms of floral development. A rice mutant, that lacks palea in its florets, was derived from a spontaneous mutation in an indica line, SAR III-93-369. Genetic analyses in three F2 populations from the mutant crossed with three rice varieties, Sheng 47, N625 and CDR22, respectively, showed that the mutant trait is controlled by a single recessive gene. In the F2 population from npa-1/Sheng47 the gene for the non-palea trait was mapped between two restriction fragment length polymorphism markers, C498 and RZ450, with distances of 7.5 cM and 2.4 cM, respectively. The tagged recessive non-palea gene is temporarily designated npa-1.
Luo
Qiong
Q
Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
Zhou
Kai-Da
KD
Liu
Guo-Qing
GQ
Xu
Ji-Chen
JC
Xiao
Han
H
Zhu
Li-Huang
LH
D002874:Chromosome Mapping; D017343:Genes, Plant; D009154:Mutation; D012275:Oryza / Q000235:genetics*; D012150:Polymorphism, Restriction Fragment Length