Fine mapping of QTL qPH6-1 for plant height on the short arm of rice chromosome 6.
Year: 2009
Type: article
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.
Source: Zhongguo shuidao kexue
Language: English
Subfield: Genetics
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W332800904