Plant pathogen-mediated rapid acclimation of a host-specialized aphid to a non-host plant.

ABSTRACT: Polyphagous aphids often consist of host-specialized lineages, which have greater fitness on their native hosts than on others. The underlying causes are important for understanding of the evolution of diet breadth and host shift of aphids. The cotton-melon aphid Aphis gossypii Glover is extremely polyphagous with many strict host-specialized lineages. Whether and how the lineage specialized on the primary host hibiscus shifts to the secondary host cucumber remains elusive. We found that the hibiscus-specialized lineage suffered high mortality and gave birth to very few nymphs developing into yellow dwarfs on fresh cucumber leaves, and did not inflict any damage symptoms on cucumber plants. The poor performance did not improve with prolonged exposure to cucumber; however, it did sig

SUBMITTER: Ali F 

PROVIDER: S-EPMC8571567 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature