A coldsensitive japonica rice variety 02428 and a coldresistant rice variety 02428c were used as parents to produce an F5:6 population composed of 336 recombinant inbred lines. Numbers of filled grains, unfilled grains, total grains and seedsetting rate were measured as phenotypic values for evaluating cold tolerance at the booting stage. A genetic linkage map was constructed with 486 SSR markers for QTL mapping. The markers RM6092, RM6702, RM5954, RM1095, RM1183, RM7643 and RM3411 were linked to the cold tolerance at the booting stage. Three QTLs controlling cold tolerance at the booting stage were identified on the chromosome 1 with QTLMapper 1.6.
XIE Yongwu1,2,3 , YANG Shuming1,*, ZENG Yawen1,*, YANG Tao1, PU Xiaoying1, DU Juan1, ZHAO Chunyan2, ZHANG Mingxi4
. QTL Analysis of Cold Tolerance in Japonica Rice Using Recombinant Inbred Lines from 02428×02428c at Booting Stage [J]. Chinese Journal OF Rice Science, 2011
, 25(6)
: 681
-684
.
DOI: 10.3969/j.issn.10017216.2011.06.018
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