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Online ISSN : 2349-8080 Issues : 12 per year Publisher : Excellent Publishers Email : editorinchiefijcrbp@gmail.com |
Yams (Dioscorea spp.) are widely cultivated in China, with many landraces maintained by local farmers. However, little is known about their diversity or species identity. In this study, inter-simple sequence repeats (ISSRs) were used to determine genetic diversity within 64 yam landraces from 12 provinces of China. A total of 45 bands were amplified with five ISSR primers, of which 40 (88.89%) were polymorphic, suggesting a high level of polymorphism. Moreover, genetic diversity, estimated using Shannon’ index, was 0.3702, indicating relatively high genetic variation. A dendrogram of within-group linkage subsequently divided the 64 cultivars into three main clusters. Overall, the results suggest that these Chinese yam landraces are a valuable source of genes for future yam breeding programs
