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Variability in the flight muscles of field and laboratory strains of the mosquito,Aedes aegypti(L.) (Diptera : Culidae)

Authors
Journal
International Journal of Insect Morphology and Embryology
0020-7322
Publisher
Elsevier
Publication Date
Volume
11
Identifiers
DOI: 10.1016/0020-7322(82)90020-4
Disciplines
  • Biology
  • Medicine

Abstract

Abstract The distribution of indirect flight muscle fibres was examined in histological sections of females from 3 unrelated field populations of Aedes aegypti (L.) (Diptera : Culicidae) and compared with that in an inbred laboratory strain. The number of muscle fibres, the frequency of branching of fibres and the degree of bilateral asymmetry were very similar in all 3 field populations. By comparison, the number of muscle fibres in the laboratory strain was more variable and the degree of branching and asymmetry greater. This suggests that in nature the flight muscles are subject to stabilizing selection for an optimal phenotype.

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