The Multitiller and dwarf mutant d63 was a spontaneous mutation of the twinseedling progenies, which were derived from the cross between diploid SARⅢ and Minghui 63. Compared with the wild type, the d63 mutant showed multiple abnormal phenotypes, such as dwarfism, more tillers, smaller flag leaf, reduced seedsetting rate and 1000grain weight. Genetic analysis indicated that the mutant was controlled by a single recessive gene on chromosome 8. The gene was finally located on the short arm of chromosome 8, 0.4 cM from RM22195, where 14 ORFs were predicted based on Rice Genome Annotation. D63 might be a new gene as there was no dwarf genes reported on the short arm of chromosome 8.
XUE Jingjing1, WU Shaohua2， ZHANG Hongyu1, XU Peizhou1, WU Xianjun1,*
. Genetic Analysis and Gene Mapping of a New Multitiller and Dwarf Mutant d63 in Rice[J]. Chinese Journal OF Rice Science, 2012
, 26(6)
: 663
-668
.
DOI: 10.3969/j.issn.10017216.2012.06.005
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