Indo-Pacific population structure and evolutionary history of the coconut crab Birgus latro

Lavery, S., Moritz, C. and Fielder, D. R. (1996) Indo-Pacific population structure and evolutionary history of the coconut crab Birgus latro. Molecular Ecology, 5 4: 557-570. doi:10.1111/j.1365-294X.1996.tb00347.x


Author Lavery, S.
Moritz, C.
Fielder, D. R.
Title Indo-Pacific population structure and evolutionary history of the coconut crab Birgus latro
Journal name Molecular Ecology   Check publisher's open access policy
ISSN 0962-1083
Publication date 1996-01-01
Sub-type Article (original research)
DOI 10.1111/j.1365-294X.1996.tb00347.x
Open Access Status Not yet assessed
Volume 5
Issue 4
Start page 557
End page 570
Total pages 14
Publisher Blackwell Publishing Ltd
Language eng
Subject 1105 Ecology, Evolution, Behavior and Systematics
1311 Genetics
Abstract Mitochondrial DNA variation was used to examine population structure in a widespread, marine-dispersed species, Birgus latro. Crabs were collected from eight locations throughout the species' Indo-Pacific distribution. Purified mtDNA from 160 individuals was cut with five restriction enzymes, revealing high haplotype diversity (0.96) and moderate nucleotide diversity (0.75%). Island populations from the Indian Ocean (Christmas I.) and Pacific Ocean were significantly different (G(ST) = 0.37) and had distinct mtDNA lineages with a net sequence divergence of 1.4%. Pacific island populations had diverged in a manner consistent with isolation by distance, with only the most peripheral populations being significantly different. The results for mtDNA are largely concordant with those from allozymes, although estimates of gene flow between the Indian and Pacific Oceans were much lower when based on mtDNA. The mtDNA phylogeny also permitted a deeper examination of the evolutionary and demographic history of Birgus latro. Long-term separation of populations is evident in the complete phylogenetic subdivision of mtDNA lineages between the Indian and Pacific Ocean populations sampled. The starlike phylogeny of alleles from the Pacific suggests a rapid population expansion in the Pacific during the Pleistocene. Including information about allele phylogeny, as well as distribution and frequency, obscured contemporary population structure, but provided unique insights into the evolutionary history of the species.
Keyword Birgus latro
conservation genetics
gene flow
Indo-Pacific
mtDNA
population genetics
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Fri, 15 Dec 2017, 07:02:16 EST