Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/193944
Type: Artigo de periódico
Title: Intraspecific Mitochondrial Dna Variation In The Colorado Potato Beetle, Leptinotarsa Decemlineata (coleoptera: Chrysomelidae).
Author: Azeredo-Espin, A M
Schroder, R F
Roderick, G K
Sheppard, W S
Abstract: Restriction endonuclease analyses of mitochondrial DNA (mtDNA) were used to examine genetic variability and population structure in Leptinotarsa decemlineata (Say). A group of three enzymes, EcoRI, HpaI, and PstI, was used to reveal polymorphism both within and among some of the 10 populations tested, yielding 16 haplotypes in combination. The frequencies of these 16 haplotypes differed significantly across geographic regions, indicating some partitioning of mtDNA haplotypes. Estimates of mtDNA sequence divergence (delta) between haplotypes ranged from 0.016 to 0.135%, suggesting local differentiation of mtDNA in some populations. Analysis of these data suggests that Texas was colonized by more than one mtDNA lineage, most likely originating in Mexico. We hypothesize that a larger founder size for the initial introductions or high levels of variability in the parent population at the edge of the CPB expanding range led to the initial partitioning of haplotypes observed in samples from Texas.
Subject: Animals
Beetles
Dna Restriction Enzymes
Dna, Mitochondrial
Genetic Variation
Haplotypes
Species Specificity
United States
Rights: fechado
Identifier DOI: 
Address: http://www.ncbi.nlm.nih.gov/pubmed/8894048
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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