The Genetic Diversity of Colletotrichum spp. Population Isolated from Grapes in Yunnan Province

The genetic diversity of 60 Colletotrichum spp. isolates collected from main grape-growing areas in Yunnan was characterized with the molecular phylogenetic tree of -tub2, ef1-, and his4 partial gene sequence. The results indicated that grape anthracnose was caused not only by Colletotrichum gloeosporioides, but also by other species within the C.gloeosporioides complex, and other species in Colletotrichum. Further analysis demonstrated that there was rich genetic diversity level within the population isolated from different grape specificities coming from different areas in Yunnan. However, the genetic diversity of these isolates had no correlation with those characterizations including geographic origins, host specificities, colony or spore morphologies and pathogenicity to red globe grape.