Genetic diversity of Beauveria bassiana in semi natural and agricultural habitats and its biocontrol potential against cowpea aphid, Aphis craccivora Koch.

ABSTRACT: Information on the biology and ecology of Beauveria bassiana in different habitats could provide essential knowledge in their development as biocontrol agents of insect pests. In this study, phylogenetic and genotypic information was used to evaluate the genetic diversity of B. bassiana within semi natural and agricultural habitats in Karnataka State of South India and assessed their extracellular chitinase activity and pathogenicity against cowpea aphid, Aphis craccivora. Multilocus phylogeny and microsatellite genotyping of B. bassiana conjointly resolved three phylogenetic species, Bb_1, Bb_2, and Bb_3, in semi natural and agricultural habitats. None of the three phylogenetic species of B. bassiana were associated with crop plants in agroecosystem or insect hosts in semi natural habitat

SUBMITTER: Juliya RF 

PROVIDER: S-EPMC6863276 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature