Genomic structure and life history variation of isofemale lineages of Myzus persicae with different levels of parasitization by Diaeretiella rapae.

ABSTRACT: Host resistance evolution to natural enemies depends on genetic variation, symbiont associations, and trade-offs with host´s fitness traits. We selected isofemale lineages of Myzus persicae to investigate biological traits and molecular markers associated with aphid defensive responses to the parasitic wasp Diaeretiella rapae. The parasitization of M. persicae lineages by D. rapae ranged from 43 to 76%. Rickettsia was the predominant secondary symbiont. Six lineages were selected according to D. rapae parasitization rate (LP = low parasitization; HP = high parasitization) and Rickettsia association. Life history traits differed among M. persicae lineages. However, the association of adaptive costs with reduced susceptibility to D. rapae parasitization was not consistently observed. Rickett

SUBMITTER: Gomes MP 

PROVIDER: S-EPMC12514246 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature