Abstract
Genetic diversity of Myanmar melon was evaluated by analysis of 27 RAPD markers and morphological characters using 41 accessions of melon landraces of which 36 accessions were small-seed type. The gene diversity was 0.239, higher than for group Conomon from East Asia and equivalent to Indian melon populations. Melon accessions were classified into six major clusters. The largest cluster IV comprised mainly group Conomon which was closely related to cluster V consisting of mainly group Agrestis. Most of the accessions of group Cantalupensis were grouped into clusters II or VII and were distantly related to groups Conomon and Agrestis. The genetic relationship to melon accessions from neighboring countries was analyzed. The 24 accessions of clusters IV and V were mostly clustered together with small-seed type melon of India, but the 14 accessions of clusters VI and VII were mostly clustered together with large-seed type melon of India. These results indicated that the genetic diversity of Indian melon is conserved in Myanmar. Genetic introgression among melon groups through spontaneous hybridization was also indicated and was considered important to maintain or increase the genetic diversity in Myanmar.
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Acknowledgments
We would like to thank Dr. Sakata, National Institute of Vegetable and Tea Science (NIVTS), Japan, for kindly supplying the seeds. This study was partly supported by a Grant-in-Aid for International Scientific Research of Ministry of Education, Science, Culture and Sports, Japan (No. 19255009), entitled “Genetic Assay and Study of Crop Germplasm In and Around China”. This is Contribution number 14 from the Sato Project of Research Institute for Humanity and Nature (RIHN), Japan.
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Yi, S.S., Akashi, Y., Tanaka, K. et al. Molecular analysis of genetic diversity in melon landraces (Cucumis melo L.) from Myanmar and their relationship with melon germplasm from East and South Asia. Genet Resour Crop Evol 56, 1149–1161 (2009). https://doi.org/10.1007/s10722-009-9438-y
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DOI: https://doi.org/10.1007/s10722-009-9438-y