Development of molecular linkage maps in sweet potato (Ipomoea batatas L.) using sequence-related amplified polymorphism markers
文献类型： 外文期刊
作者： Li, Aixian 1 ; Qin, Zhen 1 ; Hou, Fuyun 1 ; Dong, Shunxu 1 ; Wang, Qingmei 1 ;
作者机构： 1.Shandong Acad Agr Sci, Crop Res Inst, Jinan, Shandong, Peoples R China
关键词： molecular linkage map; SRAP marker; sweet potato
期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）
ISSN： 0179-9541
年卷期： 2018 年 137 卷 4 期
页码：
收录情况： SCI
摘要： Sweet potato is an important food crop with high starch content. It is a hexaploid species, for which the chromosomes have not yet been well characterized. In this study, we used 856 SRAP primer pairs to analyse the 240 individuals from a mapping population, which were derived from a hybrid F-1 generation of Luoxushu 8' (female) and Zhengshu 20' (male). Genetic linkage maps of the two parents were constructed. In the female parent (Luoxushu 8'), the linkage map consisted of 1391 markers, and the length of the linkage map was estimated to be 10,188.4cM with an average distance of 7.17cM between markers. In the male parent (Zhengshu 20'), the final linkage map consisted of 1,112 markers, and the estimated length of the map was 9,165.17cM with an average distance of 8.40cM between markers. Our results provide a basis for the detailed characterization of sweet potato chromosome sequences and the development of related molecular markers.
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