Phenotypic plasticity of elytron length in wingless two-spot ladybird beetles Adalia bipunctata (Coleoptera: Coccinellidae)

S.T.E. Lommen, P.W. de Jong, P.M. Brakefield

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

Winglessness in the two-spot ladybird beetle Adalia bipunctata (L.) is determined by a single locus with the wingless allele recessive to the winged wildtype allele. The expression of the wingless trait is highly variable, with individuals missing a variable part of elytra and flight wings; the elytra and wings appear to be truncated rather than miniature in form. The degree of winglessness is partly determined genetically. Here we report on the phenotypic plasticity of the degree of winglessness. The environmental effect on elytron length relative to maximal elytron length in wingless phenotypes was studied by rearing offspring of single pair crosses of this form at a low (19°C) or high (29°C) temperature. Offspring reared at 19°C showed relatively longer elytra than those reared at 29°C
Original languageEnglish
Pages (from-to)553-556
JournalEuropean Journal of Entomology
Volume102
Issue number3
Publication statusPublished - 2005

Keywords

  • nigropilosus uzel thysanoptera
  • drosophila-melanogaster
  • canalization
  • temperature
  • cricket
  • form
  • polymorphism
  • populations
  • heteroptera
  • characters

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