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The evolution of Cicada songs contrasted with the relationships inferred from mitochondrial DNA (Insecta, hemiptera)
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Orientador(es)
Resumo(s)
The molecular phylogeny of nine Palaearctic species of cicadas (Hemiptera, Cicadoidea)
was inferred using two mitochondrial DNA genes, Cytochrome Oxidase I and II. The
two main groups detected, namely species within Tettigetta and Tympanistalna, as
well as the two species investigated in the genus Cicada, are robustly supported
across the analytical methods. The structure of the song syllables, generated during
single tymbal cycles of males of the analysed group of species is remarkably consistent
in these two phyletic lines. This reflects the morphology and the mechanics of the
tymbal. However the higher level song patterns, which depend on the activity of the
central nervous system and have evolved to advertise receptive mates, do not seem
to be consistent with either the inferred molecular topology or the basic tymbal cycle.
The observed similarities between the molecular phylogeny and the basic tymbal
cycles seem to reflect the basic conservative nature of the tymbal structure, while
the discrepancy between the former and the calling song pattern is probably related
to the high plasticity of the pattern generator in the central nervous system and
dependent on species-specific selection.
Descrição
Palavras-chave
Insect calling songs Sound production Molecular phylogenies Cicadas Cytochrome oxydase
Contexto Educativo
Citação
Fonseca, P.J.; Serrão, E.A.; Pina-Martins, F.; Silva, P.; Mira, S.; Quartau, J.A.; Paulo, O.S.; Cancela, L.The evolution of Cicada songs contrasted with the relationships inferred from mitochondrial DNA (Insecta, hemiptera), Bioacoustics, 18, 1, 17-34, 2008.
Editora
Taylor & Francis