Genomic regions associated with the degree of red coloration in pericarp of rice (Oryza sativa L.)
文献类型: 外文期刊
第一作者: Dong, Yanjun
作者: Dong, Yanjun;Xiao, Ke;Zhang, Yongjuan;Zhang, Junzhi;Luo, Lijun;Matsuo, M.;Xu, Jianlong
作者机构:
关键词: Oryza sativa;genomic region;degree of red coloration (DRC);pericarp
期刊名称:JOURNAL OF CEREAL SCIENCE ( 影响因子:3.616; 五年影响因子:3.891 )
ISSN: 0733-5210
年卷期: 2008 年 48 卷 2 期
页码:
收录情况: SCI
摘要: The degree of red coloration (DRC) in pericarp of rice depends on the content of flavonoid compounds which have beneficial health effects for humans. In this study, 182 backcross-recombinant inbred lines (BILs) derived from Koshihikari (white pericarp)/Kasalath (red pericarp)// Koshihikari were used to detect the genomic regions associated with DRC through the QTL mapping approach. As a result, a total of four genomic regions were found to associate with DRC on chromosomes 1, 7, 9 and 11, respectively. Interestingly, the two genomic regions having the largest effects corresponded to previously characterized Rc and Rd genes on chromosome 7 and 1, respectively. In addition, two novel genomic regions having minor effects on DRC and located on chromosomes 9 and 11, respectively, are reported here for the first time. These results and the identification of tightly linked molecular markers that flank the genomic regions provide an opportunity for marker-aided improvement of red coloration in pericarp, of rice. (c) 2008 Elsevier Ltd. All rights reserved.
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