Genetic variation for an aphid wing polyphenism is genetically linked to a naturally occurring wing polymorphism.

ABSTRACT: Many polyphenisms are examples of adaptive phenotypic plasticity where a single genotype produces distinct phenotypes in response to environmental cues. Such alternative phenotypes occur as winged and wingless parthenogenetic females in the pea aphid (Acyrthosiphon pisum). However, the proportion of winged females produced in response to a given environmental cue varies between clonal genotypes. Winged and wingless phenotypes also occur in males of the sexual generation. In contrast to parthenogenetic females, wing production in males is environmentally insensitive and controlled by the sex-linked, biallelic locus, aphicarus (api). Hence, environmental or genetic cues induce development of winged and wingless phenotypes at different stages of the pea aphid life cycle. We have tested whethe

SUBMITTER: Braendle C 

PROVIDER: S-EPMC1564079 | biostudies-literature | 2005 Mar

REPOSITORIES: biostudies-literature