文献类型： 外文期刊

作者： Tong, Jiping ¹ ; Han, Zhengshu ¹ ; Han, Aonan ¹ ;

作者机构： 1.Tianjin Acad Agr Sci, Crop Inst, Tianjin, Peoples R China

关键词： gene mapping; genetic characteristics analysis; coloured rice; red pericarp mutant

期刊名称：CZECH JOURNAL OF GENETICS AND PLANT BREEDING （ 影响因子：0.8； 五年影响因子：0.859 ）

ISSN： 1212-1975

年卷期： 2021 年 57 卷 2 期

页码：

收录情况： SCI

摘要： Coloured rice has pigments deposited in the grain pericarp; red rice is the most common type of coloured rice. Red rice is rich in essential nutrients and has been grown and consumed in China for a long time. In this study, we report the genetic characterisation and preliminary molecular mapping of a mutant gene encoding red pericarp in rice (Oryza sativa L.). To analyse the genetic basis of the red pericarp mutant, a reciprocal cross between GER-3 (red pericarp, indica cv.) and 898 (white pericarp, indica cv.) was made. The genetic analysis results confirmed that there was only one dominant gene, temporarily designated Rp (Red pericarp) controlling the segregation of the red pericarp in the F-2 population. For the molecular mapping of Rp, an F-2 population derived from an inter-subspecific cross between Gene Engineering Rice-3 (GER-3) and C418 (japonica cv., white pericarp) was constructed. The genotype of the pericarp colour of the F-2 individuals in the mapping population was validated by progeny testing of the F-2:3 families. Simple sequence repeat (SSR) markers and the bulked segregation analysis (BSA) method were used; Rp was mapped to the short arm of chromosome 7 between the SSR markers RM21182 and RM21268, with a genetic distance of 3.5 and 12.0 cM, respectively. In this paper, the potential origin of the red pericarp mutant gene Rp was also discussed.