GENETIC RELATIONSHIP OF LOQUAT ANALYZED BY ISSR
Genetic diversity of 15 cultivars of loquat (Eriobotrya japonica Lindley) was analyzed in this paper using ISSR. Genetic relationship of these cultivars was analyzed by clustering amplified information with Jaccards method of soft SPSS11.5. Amplification results showed great polymorphism of ISSR products among loquat cultivars, and all the cultivars could be distinguished by using 11 primers. Wide genetic diversity among loquat cultivars was found with an average similarity of 0.562. The highest similarity of 0.995 appeared between Jidanbai and Gaoliangjiang, and the lowest similarity of 0.312 happened between Chuannao and Bingtangzhong. Fifteen cultivars were clustered into two identical groups on the dendrogram, ten cultivars in one group and five cultivars in another. When average similarity (0.562) was used as critical point, all the cultivars were clustered into four groups. Pedigree of Guanyu was conjectured as a hybrid of Baiyu and Tianzhong according to their high similarity.
Xu, C.M., Liu, D., Zhang, Z. and Shen, Z.J. (2007). GENETIC RELATIONSHIP OF LOQUAT ANALYZED BY ISSR. Acta Hortic. 750, 175-182
Eriobotrya japonica, biotechnology, genetic diversity, molecular marker