Wing serial homologues and the diversification of insect outgrowths: insights from the pupae of scarab beetles.

ABSTRACT: Modification of serially homologous structures is a common avenue towards functional innovation in developmental evolution, yet ancestral affinities among serial homologues may be obscured as structure-specific modifications accumulate over time. We sought to assess the degree of homology to wings of three types of body wall projections commonly observed in scarab beetles: (i) the dorsomedial support structures found on the second and third thoracic segments of pupae, (ii) the abdominal support structures found bilaterally in most abdominal segments of pupae, and (iii) the prothoracic horns which depending on species and sex may be restricted to pupae or also found in adults. We functionally investigated 14 genes within, as well as two genes outside, the canonical wing gene regulatory netw

SUBMITTER: Hu Y 

PROVIDER: S-EPMC7893267 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature