Mapping QTL for seed dormancy in weedy rice.
Mapping QTL for seed dormancy in weedy rice.
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DOI：
10.3724/sp.j.1006.2008.00737
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发表时间：
2008-01-01
期刊：
影响因子：
--
通讯作者：
Wan, J. M.
中科院分区：
文献类型：
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作者：
Jing Wen, Jing Wen;Jiang Ling, Jiang Ling;Wan, J. M.
The genetic basis of the seed dormancy of a weedy rice was dissected using a segregation population derived from a cross with a japonica cultivar. Two QTLs were located on chromosomes 1 and chromosomes 2, and two on chromosome 6. These QTLs explained 7.8%, 7.1%, 5.5%, and 4.5% of the overall phenotypic variance, respectively. The QTL on chromosome 2 appears to represent a novel source of genetic variation for seed dormancy. A multi-way analysis of variance indicated that the gene action of these four QTLs was additive. A significant negative correlation was found between germination rate and flowering time. A single heading date QTL was identified, to be either pleiotropic on or linked to a seed dormancy QTL on chromosome 6, thereby accounting for the observed correlation between seed dormancy and flowering time.
