Dating of divergences within the Rattus genus phylogeny using whole mitochondrial genomes
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Robins, Judith; McLenachan, Patricia A.; Phillips, Matthew; Craig, Lauren; Ross, Howard A; Matisoo-Smith, Elizabeth
Description
The timing and order of divergences within the genus Rattus have, to date, been quite speculative. In order to address these important issues we sequenced six new whole mitochondrial genomes from wild-caught specimens from four species, Rattus exulans, Rattus praetor, Rattus rattus and Rattus tanezumi. The only rat whole mitochondrial genomes available previously were all from Rattus norvegicus specimens. Our phylogenetic and dating analyses place the deepest divergence within Rattus at ∼3.5...[Show more]
dc.contributor.author | Robins, Judith | |
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dc.contributor.author | McLenachan, Patricia A. | |
dc.contributor.author | Phillips, Matthew | |
dc.contributor.author | Craig, Lauren | |
dc.contributor.author | Ross, Howard A | |
dc.contributor.author | Matisoo-Smith, Elizabeth | |
dc.date.accessioned | 2015-12-10T22:36:05Z | |
dc.identifier.issn | 1055-7903 | |
dc.identifier.uri | http://hdl.handle.net/1885/56549 | |
dc.description.abstract | The timing and order of divergences within the genus Rattus have, to date, been quite speculative. In order to address these important issues we sequenced six new whole mitochondrial genomes from wild-caught specimens from four species, Rattus exulans, Rattus praetor, Rattus rattus and Rattus tanezumi. The only rat whole mitochondrial genomes available previously were all from Rattus norvegicus specimens. Our phylogenetic and dating analyses place the deepest divergence within Rattus at ∼3.5 million years ago (Mya). This divergence separates the New Guinean endemic R. praetor lineage from the Asian lineages. Within the Asian/Island Southeast Asian clade R. norvegicus diverged earliest at ∼2.9 Mya. R. exulans and the ancestor of the sister species R. rattus and R. tanezumi subsequently diverged at ∼2.2 Mya, with R. rattus and R. tanezumi separating as recently as ∼0.4 Mya. Our results give both a better resolved species divergence order and diversification dates within Rattus than previous studies. | |
dc.publisher | Academic Press | |
dc.source | Molecular Phylogenetics and Evolution | |
dc.subject | Keywords: mitochondrial DNA; animal; article; Bayes theorem; biological model; classification; DNA sequence; genetics; mitochondrial genome; mitochondrion; molecular evolution; phylogeny; rat; species difference; species differentiation; statistical model; Animals; Divergence dates; Genus Rattus; Mitochondrial genomes; RY-coding | |
dc.title | Dating of divergences within the Rattus genus phylogeny using whole mitochondrial genomes | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 49 | |
dc.date.issued | 2008 | |
local.identifier.absfor | 060301 - Animal Systematics and Taxonomy | |
local.identifier.absfor | 060302 - Biogeography and Phylogeography | |
local.identifier.ariespublication | u9511635xPUB366 | |
local.type.status | Published Version | |
local.contributor.affiliation | Robins, Judith, University of Auckland | |
local.contributor.affiliation | McLenachan, Patricia A., Massey University | |
local.contributor.affiliation | Phillips, Matthew, College of Medicine, Biology and Environment, ANU | |
local.contributor.affiliation | Craig, Lauren, University of Otago | |
local.contributor.affiliation | Ross, Howard A, University of Auckland | |
local.contributor.affiliation | Matisoo-Smith, Elizabeth, University of Auckland | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.startpage | 460 | |
local.bibliographicCitation.lastpage | 466 | |
local.identifier.doi | 10.1016/j.ympev.2008.08.001 | |
dc.date.updated | 2016-02-24T12:04:45Z | |
local.identifier.scopusID | 2-s2.0-55049136427 | |
Collections | ANU Research Publications |
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