Cytonuclear discordance among Southeast Asian black rats (Rattus rattus complex)
peer reviewed Black rats are major invasive vertebrate pests with severe ecological, economic and health impacts. Remarkably, their evolutionary history has received little attention and there is no firm agreement on how many species should be recognized within the black rat complex. This species co...
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ftorbi:oai:orbi.ulg.ac.be:2268/139262 2024-04-21T08:10:46+00:00 Cytonuclear discordance among Southeast Asian black rats (Rattus rattus complex) Pagès, Marie ULg - Université de Liège Centre de Biologie pour la Gestion des Populations 2013 https://orbi.uliege.be/handle/2268/139262 https://doi.org/10.1111/mec.12149 en eng Blackwell Publishing urn:issn:0962-1083 urn:issn:1365-294X https://orbi.uliege.be/handle/2268/139262 info:hdl:2268/139262 doi:10.1111/mec.12149 scopus-id:2-s2.0-84873092714 info:pmid:23278980 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Molecular Ecology (2013) incomplete lineage sorting introgression paraphyly Rattus recent speciation species complex Life sciences Genetics & genetic processes Sciences du vivant Génétique & processus génétiques journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2013 ftorbi https://doi.org/10.1111/mec.12149 2024-03-27T14:52:34Z peer reviewed Black rats are major invasive vertebrate pests with severe ecological, economic and health impacts. Remarkably, their evolutionary history has received little attention and there is no firm agreement on how many species should be recognized within the black rat complex. This species complex is native to India and Southeast Asia. According to current taxonomic classification, there are three taxa living in sympatry in several parts of Thailand, Cambodia and Lao People's Democratic Republic, where this study was conducted: two accepted species (Rattus tanezumi, Rattus sakeratensis) and an additional mitochondrial lineage of unclear taxonomic status referred to here as ‘Rattus R3’. We used extensive sampling, morphological data and diverse genetic markers differing in rates of evolution and parental inheritance (two mitochondrial DNA genes, one nuclear gene and eight microsatellite loci) to assess the reproductive isolation of these three taxa. Two close Asian relatives, Rattus argentiventer and Rattus exulans, were also included in the genetic analyses. Genetic analyses revealed discordance between the mitochondrial and nuclear data. Mitochondrial phylogeny studies identified three reciprocally monophyletic clades in the black rat complex. However, studies of the phylogeny of the nuclear exon IRBP and clustering and assignation analyses with eight microsatellites failed to separate R. tanezumi and R3. Morphometric analyses were consistent with nuclear data. The incongruence between mitochondrial and nuclear (and morphological) data rendered R. tanezumi/R3 paraphyletic for mitochondrial lineages with respect to R. sakeratensis. Various evolutionary processes, such as shared ancestral polymorphism and incomplete lineage sorting or hybridization with massive mitochondrial introgression between species, may account for this unusual genetic pattern in mammals. Article in Journal/Newspaper Rattus rattus University of Liège: ORBi (Open Repository and Bibliography) Molecular Ecology 22 4 1019 1034 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
incomplete lineage sorting introgression paraphyly Rattus recent speciation species complex Life sciences Genetics & genetic processes Sciences du vivant Génétique & processus génétiques |
spellingShingle |
incomplete lineage sorting introgression paraphyly Rattus recent speciation species complex Life sciences Genetics & genetic processes Sciences du vivant Génétique & processus génétiques Pagès, Marie Cytonuclear discordance among Southeast Asian black rats (Rattus rattus complex) |
topic_facet |
incomplete lineage sorting introgression paraphyly Rattus recent speciation species complex Life sciences Genetics & genetic processes Sciences du vivant Génétique & processus génétiques |
description |
peer reviewed Black rats are major invasive vertebrate pests with severe ecological, economic and health impacts. Remarkably, their evolutionary history has received little attention and there is no firm agreement on how many species should be recognized within the black rat complex. This species complex is native to India and Southeast Asia. According to current taxonomic classification, there are three taxa living in sympatry in several parts of Thailand, Cambodia and Lao People's Democratic Republic, where this study was conducted: two accepted species (Rattus tanezumi, Rattus sakeratensis) and an additional mitochondrial lineage of unclear taxonomic status referred to here as ‘Rattus R3’. We used extensive sampling, morphological data and diverse genetic markers differing in rates of evolution and parental inheritance (two mitochondrial DNA genes, one nuclear gene and eight microsatellite loci) to assess the reproductive isolation of these three taxa. Two close Asian relatives, Rattus argentiventer and Rattus exulans, were also included in the genetic analyses. Genetic analyses revealed discordance between the mitochondrial and nuclear data. Mitochondrial phylogeny studies identified three reciprocally monophyletic clades in the black rat complex. However, studies of the phylogeny of the nuclear exon IRBP and clustering and assignation analyses with eight microsatellites failed to separate R. tanezumi and R3. Morphometric analyses were consistent with nuclear data. The incongruence between mitochondrial and nuclear (and morphological) data rendered R. tanezumi/R3 paraphyletic for mitochondrial lineages with respect to R. sakeratensis. Various evolutionary processes, such as shared ancestral polymorphism and incomplete lineage sorting or hybridization with massive mitochondrial introgression between species, may account for this unusual genetic pattern in mammals. |
author2 |
ULg - Université de Liège Centre de Biologie pour la Gestion des Populations |
format |
Article in Journal/Newspaper |
author |
Pagès, Marie |
author_facet |
Pagès, Marie |
author_sort |
Pagès, Marie |
title |
Cytonuclear discordance among Southeast Asian black rats (Rattus rattus complex) |
title_short |
Cytonuclear discordance among Southeast Asian black rats (Rattus rattus complex) |
title_full |
Cytonuclear discordance among Southeast Asian black rats (Rattus rattus complex) |
title_fullStr |
Cytonuclear discordance among Southeast Asian black rats (Rattus rattus complex) |
title_full_unstemmed |
Cytonuclear discordance among Southeast Asian black rats (Rattus rattus complex) |
title_sort |
cytonuclear discordance among southeast asian black rats (rattus rattus complex) |
publisher |
Blackwell Publishing |
publishDate |
2013 |
url |
https://orbi.uliege.be/handle/2268/139262 https://doi.org/10.1111/mec.12149 |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Molecular Ecology (2013) |
op_relation |
urn:issn:0962-1083 urn:issn:1365-294X https://orbi.uliege.be/handle/2268/139262 info:hdl:2268/139262 doi:10.1111/mec.12149 scopus-id:2-s2.0-84873092714 info:pmid:23278980 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/mec.12149 |
container_title |
Molecular Ecology |
container_volume |
22 |
container_issue |
4 |
container_start_page |
1019 |
op_container_end_page |
1034 |
_version_ |
1796952350850547712 |