Chinese Journal OF Rice Science >
Genetic Analysis and Fine Mapping for a Novel split glume Mutant in Rice
Received date: 2014-04-24
Revised date: 2014-06-10
Online published: 2015-01-10
A split glume mutant is from the mutant library of indica variety Zhongxian 3037 radiated by 60Co γ-ray. Compared to its wild type, the mutant has not only split glumes, but also characterized by early heading, lower plant height, reduced seed setting rate and degenerated spikelets, which implies that the mutation has a pleiotropic effect. Genetic and molecular analysis indicated that the mutant was controlled by a recessive nuclear gene, temporally designated as split glume 1 (sg1), and then SG1 was fine mapped to a 47-kb DNA region between the STS markers M1-z21 and M1-z27 on 1, where six ORFs in total were predicted. On the basis of the location of SG1, it is deduced that SG1 is a novel gene regulating the rice glume development.
Key words： rice; flower organ; sg1; fine mapping
Sheng-yuan ZENG, Min GUO, Rong-de LI, Sheng-lan SHENG, Hong-bin GONG, Chang-jie YAN . Genetic Analysis and Fine Mapping for a Novel split glume Mutant in Rice[J]. Chinese Journal OF Rice Science, 2015 , 29(1) : 22 -27 . DOI: 10.3969/j.issn.1001-7216.2015.01.003
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