Vegetative compatibility between an artificial released strain and indigenous strains of Beauveria bassiana in Xuancheng
In this study,Bb13,an artificially released strain of Beauveria bassiana in a Masson′s pine plantation,and 111 indigenous strains isolated from insects,soil and air flow,were paired to study their respective vegetative compatibility to other strains.The result showed that the 112 strains belonged to 9 vegetative compatible groups(VCG′s):VCG1 consisted of 36 strains,VCG2 23 strains,VCG3 25 strains,VCG4 16 strains,VCG5 8 strains,VCG5,VCG7,VCG8 and VCG9 only one strain,respectively.Of 111 indigenous strains,35 were compatible to Bb13,accounting for 31.53% of the total strains,while 76 strains,accounting for 68.47%,were non-compatible to Bb13,the released strain.The result suggested that the population of Beauveria bassiana in the pine ecosystem is very heterogenic,with abundant genetic diversity.