Title
Mono- and oligophagous Phyllotreta (Coleoptera : Chrysomelidae) species : the relation between host plant range and genetic diversityMono- and oligophagous Phyllotreta (Coleoptera : Chrysomelidae) species : the relation between host plant range and genetic diversity
Author
Faculty/Department
Faculty of Sciences. Biology
Research group
Department of Biology - other
Publication type
article
Publication
Brussel,
Subject
Biology
Source (journal)
Belgian journal of zoology. - Brussel
Volume/pages
133(2003):1, p. 71-76
ISSN
0777-6276
ISI
000181847100008
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
The niche-width variation hypothesis predicts a positive correlation between niche width and genetic variability. Here we evaluated this hypothesis by comparing genetic variability in four monophagous (narrow niche) and six oligophagous (broad niche) species of the beetle genus Phyllotreta Chevrolat, 1837 (Coleoptera: Chrysomelidae: Alticinae). The results, obtained over a similar geographic range, demonstrate that for all genetic variability measures used (average number of alleles per locus, percentage of loci polymorphic, observed heterozygosity and expected heterozygosity under Hardy-Weinberg conditions) the monophagous species showed a significantly higher genetic variability compared to the oligophagous species. This result is at variance with the niche-width variation hypothesis.
E-info
https://repository.uantwerpen.be/docman/iruaauth/156feb/9cf5912.pdf
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