Studies on genetic relationships among Oakleaf loquat, Daduhe loquat and common loquat by RAPD and ISSR

作     者：FU Yan YANG Qin LUO Nan WANG Yong-qiang DENG Qun-xian QIU Yuan LI Jun-qiang RUAN Guang-lun 

作者机构：College of Forestry and Horticulture Sichuan Agricultural University Ya ＇an 625014 China Zigong Agricultural Bureau Zigong 643000 China Fruit Office of Fuling Area of Chongqing Chongqing 408000 China 

出 版 物：《Journal of Agricultural Science and Technology》 (农业科学与技术（美国大卫英文）)

年 卷 期：2009年第3卷第1期

页      面：17-22页

学科分类：09[农学] 0902[农学-园艺学] 090201[农学-果树学] 

主　　题：Eriobotrya prinoides Eriobotrya prinoides vat. dadunensis Eriobotryajaponica genetic relationship RAPD ISSR 

摘      要：The genetic relationships among oakleaf loquat （Eriobotrya prinoides）, Daduhe loquat （Eriobotrya prinoides var. dadunensis） and common loquat （Eriobotrya japonica） were studied by RAPD and ISSR markers. The results showed that the similarity coefficient between oakleaf loquat and common loquat was minimal （0.6996 and 0.7219, respectively） and the similarity coefficient between oakleaf loquat and Daduhe loquat was maximal （0.8403 and 0.8211, respectively）, while the similarity coefficient between Daduhe loquat and common loquat was always intermediate （0.7195 and 0.7219, respectively）. The highest additivity was obtained when Daduhe loquat was regarded as the undetermined hybrid （44.9% and 45.8%, respectively）. The specific bands of oakleaf loquat and common loquat were present in Daduhe loquat. Thus, it could be concluded that Daduhe loquat was a hybrid of oakleaf loquat and common loquat.