One hundred and twentyeight chromosome segment substitution lines derived from 9311 as recipient and Nipponbare as donor, were used for mapping QTLs for grain shape by combining the sequencingbased Binmap with a multiple linear regression analysis. Six and two QTLs were identified for grian length(GL) and grian width(GW), respectively. qGL3.1 was mapped in a region of 5 792 954 bp on chromosome 3, qGL3.2 in a region of 917 878 bp on chromosome 3; qGL81 in a region of 889 543 bp on chromosome 8; qGL8.2 in a region of 208 614 bp on chromosome 8; qGL9.1 in a region of 1 149 685 bp on chromosome 9; qGL11.1 in a region of 3 184 760 bp on chromosome 11; qGW1.1 in a region of 200 070 bp on chromosome 1; and qGW5.1 in a region of 704 905 bp on chromosome 5. The results provided a foundation for fine mapping QTLs and subsequent gene cloning.
XU Jian-Jun1, 2 , ZHAO Qiang3, TANG Zai-Xiang1, ZHAO Yuan-Feng1, ZHU Lei1, XU Chen-Wu1, GU Ming-Hong1, HAN Bin3
. Mapping of QTLs for Grain Shape Using WholeGenome Resequenced Chromosome Segment Substitution Lines in Rice[J]. Chinese Journal OF Rice Science, 2011
, 25(4)
: 365
-369
.
DOI: 10.3969/j.issn.1001-7216.2011.04.004
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