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抄録

On the cover

Mango (Mangifera indica L.) production is the second large among tropical fruits in Japan. In its commercial production, however, only a few cultivars have been cultivated, mainly the monoculture of ‘Irwin’. We have surveyed the genetic relationships and diversity of mango genetic resources in Japan. From the results, 120 accessions employed for analysis identified 83 identical SSR genotypes. Regarding parentage, it was revealed that over 30 cultivars are offspring of ‘Haden’. There are genetically three distinct clusters. Two clusters correspond to the groups of USA and India, which are closely related, and the other includes accessions from Southeast and East Asia. These results agree with the previous identification of Indian and Southeast types (photo: Fruits of diverse mango genetic resources in Japan) (This issue, p. 332–344).

(S. Yamanaka: Japan International Research Center for Agricultural Sciences)