Abstract:

In order to select and breed new varieties of Lentinula edodes for export, the phylogenetic relationship of several strains of L. edodes was analyzed based on ribosomal DNA ITS sequences, and comparative experiments of cultivation between the two selected strains and some others cultivated in China were also investigated. The results indicated the moderate genetic diversity among these strains for export, and they could be clustered into two groups. The strains qh01, qh04, qh05 and qh06 were clustered into one group, which indicated a close phylogenetic relationship within the group. However, the single strain qh02 was clustered into another group, which inferred a far phylogenetic relationship with other strains. Comparative experiments showed various agronomic traits among the tested strains, and especially, the two strains qh02 and qh06, showed excellent agronomic traits, and consequently inferred that the two strains were suitable for export.