Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/27887
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Type: Journal article
Title: Increased genetic diversity in mitochondrial genes is correlated with the evolution of parasitism in the Hymenoptera
Author: Dowton, M.
Austin, A.
Citation: Journal of Molecular Evolution, 1995; 41(6):958-965
Publisher: Springer International
Issue Date: 1995
ISSN: 0022-2844
1432-1432
Abstract: A higher AT content and rate of mtDNA sequence divergence was found in parasitic wasps (Apocrita) compared with nonparasitic wasps (Symphyta). The compositional bias was reflected in extreme codon bias for a cytochrome oxidase I protein coding gene fragment as well as in the types of amino acid substitutions that have occurred during the evolution of this gene fragment. In some instances, compositional bias influenced the definition of a conservative amino acid change. The increased rate of mtDNA sequence evolution probably arose during the early Jurassic, coincident with the first appearance of parasitic wasps in the fossil record. Our results suggest a causal link between the rate of sequence divergence and the parasitic lifestyle.
Keywords: Genetic distance; Parasitism; Genetic diversity; Cytochrome oxidase I; 16S rRNA
RMID: 0030002570
DOI: 10.1007/BF00173176
Published version: http://www.springerlink.com/content/g7055778v1322g08/
Appears in Collections:Agriculture, Food and Wine publications
Environment Institute Leaders publications

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