[Objective] The research aimed to confirm the genus correlation among 25 strains of endophytic actinomycetes in plants preliminarily.[Method] The genomic DNA was extracted from 25 strains of endophytic actinomycetes isolated from such plants as wheat,onion and rape.PCR amplification and sequencing were made on its 16S rDNA sequences to make the phylogenetic analysis.[Result] The phylogenetic analysis results showed that 25 strains of endophytic actinomycetes in plants could be divided into 5 genus,including...