Chinese Journal OF Rice Science >
Gene Mapping of a Narrow and Rolled Leaf Mutant Nrl3(t) in Rice
*Corresponding author：E-mail:wuxjsau@126.com,caolycgf@mail.hz.zj.cn
Received date: 2015-02-09
Revised date: 2015-09-06
Online published: 2015-11-10
Nrl3(t) was a novel narrow and rolled leaf mutant from the indica restorer line Zhonghui 8015 after exposure to 60Co-γ ray. Nrl3(t) exhibited significant adaxially-rolled leaves, reduced plant height, shortened panicle length, reduced grain length, grain width and thousand-grain weight, as well as the seed-setting rate. Cytological analysis showed that the rolled leaf phenotype was due to the reduced number of vascular bundleand the changed size of bulliform cells. In an initial mapping with F2 individuals derived from a cross between Nrl3(t) and japonica 02428, the narrow and rolled leaf gene Nrl3(t) was eventually mapped to a 70.3 kb region on the long arm of chromosome 2 between two newly developed sequence tagged site markers C9 and C10E. These results would lay a good foundation for molecular cloning and functional analysis of Nrl3(t).
Key words： rice; narrow and rolled leaf; gene; fine mapping
Xiao-hui ZHANG, Ya-zhi QIN, Ying-xin ZHANG, Xiao-deng ZHAN, Zhen-hua ZHANG, Xi-hong SHEN, Shi-hua CHENG, Li-yong CAO, Xian-jun WU . Gene Mapping of a Narrow and Rolled Leaf Mutant Nrl3(t) in Rice[J]. Chinese Journal OF Rice Science, 2015 , 29(6) : 595 -600 . DOI: 10.3969/j.issn.1001G7216.2015.06.005
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