Chinese Journal OF Rice Science

Chinese Journal OF Rice Science >

2009 , Vol. 23 >Issue 5: 470 - 474

DOI: https://doi.org/10.3969/j.issn.10017216.2009.05.04

研究报告

Fine Mapping of QTL qPH6-1 for Plant Height on the Short Arm of Rice Chromosome 6

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  • 1 Chinese National Center for Rice Improvement/State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; 2 College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China; * Corresponding author, E-mail: jz1803@hzcnc.com

Received date: 1900-01-01

  Revised date: 1900-01-01

  Online published: 2009-09-10

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Abstract

Populations derived from residual heterozygous lines (RHLs) were used for the detection and fine mapping of quantitative trait loci (QTLs) for plant height in rice. An F2:3 population which segregates in a 7.3Mb region on the short arm of rice chromosome 6 in an isogenic background were transplanted in two trial sites in Hainan and Zhejiang Provinces, respectively. Two QTLs for plant height were detected, of which qPH61 exhibited a consistent effect across the two sites. Three plants having smaller heterozygous segments which overlap the qPH61 region were selected. Using the three F2 populations produced, qPH61 was validated and delimitated to a 96.4kb region flanked by SSR markers RM3414 and RM19417. Three more F2 populations which segregate in smaller regions covering qPH61 were developed. The qPH61 locus was delimited to a 51.7kb region flanked by STS marker Si2925 and SSR marker RM19417. It was also shown that this gene is nonallelic to all the major genes for dwarfism mapped or cloned in rice.

Key words： plant height; quantitative trait locus; fine mapping; residual heterozygous line; rice

Cite this article

BAO Qian-jiang,FAN Ye-yang,YU Wei-dong,CHEN Chen,FAN Fang-jun,DU Jing-hong,ZHUANG Jie-yun . Fine Mapping of QTL qPH6-1 for Plant Height on the Short Arm of Rice Chromosome 6[J]. Chinese Journal OF Rice Science, 2009 , 23(5) : 470 -474 . DOI: 10.3969/j.issn.10017216.2009.05.04

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