文献类型： 外文期刊

作者： Shu Ai-ping ¹ ; Zhang Yuan-yuan ¹ ; Cao Gui-lan ¹ ; Lu Qin ² ; Zhang San-yuan ⁴ ; Han Long-zhi ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Key Lab Crop Germplasm Resources & Utilizat, Inst Crop Sci,Minist Agr, Beijing 100081, Peoples R China

2.Fujian Agr & Forestry Univ, Coll Crop Sci, Fuzhou 350002, Peoples R China

3.Jiangxi Acad Agr Sci, Rice Res Inst, Nanchang 330200, Peoples R China

4.Jilin Acad Agr Sci, Inst Rice Res, Gongzhuling 136100, Peoples R China

关键词： improved japonica rice variety;genetic similarity;genetic basis of parent;ecological and climatic environment;SSR marker

期刊名称：AGRICULTURAL SCIENCES IN CHINA （ 影响因子：0.82； 五年影响因子：0.997 ）

ISSN： 1671-2927

年卷期： 2010 年 9 卷 8 期

页码：

收录情况： SCI

摘要： To provide a genetic basis for japonica rice breeding, the genetic similarity and cluster of 139 accessions of improved japonica rice varieties from 12 provinces and cities of China were analyzed using 34 SSR markers. Totally 198 alleles were detected among these improved japonica rice varieties with the average number of alleles per pair of primers was 5.3235. RM320, RM531, RM1, RM286, and RM336 showed more alleles, which were 15, 12, 11, 9, and 9, respectively. RM320, RM336, RM286 and RM531 showed higher genetic diversity indexes, which were 2.3324, 2.0292, 1.8996, and 1.7820, respectively. The range of genetic similar index among improved japonica rice varieties from different provinces was from 0.321 to 0.914, with the average of 0.686. There was a high genetic similarity among improved japonica rice varieties from Heilongjiang, Jilin, Liaoning, Ningxia, and Yunnan, which were located in similar latitude or similar ecological environment, while there was a low genetic similarity between improved japonica rice varieties from Guizhou and Jiangsu, and other provinces which were located in more different latitudes and ecological environments. The markers of RM320, RM531, RM1, RM286, and RM336 fit to be used in analysis of genetic diversity for improved japonica rice variety. The genetic similarity among improved japonica rice varieties from different provinces was closely associated with genetic basis of parents, and was also correlated with latitude and ecological environment where the varieties were bred.