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A comparison between allozyme data and phenotypic distances from defensive secretion in Oreina leaf‐beetles (Chrysomelinae)
Author(s) -
RowellRahier Martine,
Pasteels Jacques M.
Publication year - 1994
Publication title -
journal of evolutionary biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.289
H-Index - 128
eISSN - 1420-9101
pISSN - 1010-061X
DOI - 10.1046/j.1420-9101.1994.7040489.x
Subject(s) - biology , cardenolide , botany , dendrogram , asteraceae , apiaceae , chemical defense , population , genetic diversity , demography , herbivore , sociology , glycoside
The genetic relationships between five Oreina species (Chrysomelidae, Coleoptera) were studied. Of these species, four ( O. bifrons , O. gloriosa , O. speciosa , O. variabilis ) feed on Apiaceae and secrete mixtures of autogenous cardenolides from defensive glands, whilst the other ( O. speciosissima ) feeds on Asteraceae and is able both to produce cardenolides and to sequester pyrrolizidines N‐oxides (PAs). A dendrogram based on the different mixtures of cardenolides produced by the different species agreed with these genetic relationships. In other words, cardenolide mixtures are good taxonomic markers, since the clustering method based on chemical defense produces a branching pattern similar to that based on genetic relationships.