Mitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.

A phylogeographic study was conducted on the Nile grass rat, Arvicanthis niloticus, a rodent species that is tightly associated with open grasslands from the Sudano-Sahelian regions. Using one mitochondrial (cytochrome b) and one nuclear (intron 7 of Beta Fibrinogen) gene, robust patterns were retri...

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Autores principales:	Gauthier Dobigny, Caroline Tatard, Philippe Gauthier, Khalilou Ba, Jean-Marc Duplantier, Laurent Granjon, Gael J Kergoat
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9d34da4cf4294484a1137ec1500291da
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spelling	oai:doaj.org-article:9d34da4cf4294484a1137ec1500291da2021-11-18T08:48:47ZMitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.1932-620310.1371/journal.pone.0077815https://doaj.org/article/9d34da4cf4294484a1137ec1500291da2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24223730/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203A phylogeographic study was conducted on the Nile grass rat, Arvicanthis niloticus, a rodent species that is tightly associated with open grasslands from the Sudano-Sahelian regions. Using one mitochondrial (cytochrome b) and one nuclear (intron 7 of Beta Fibrinogen) gene, robust patterns were retrieved that clearly show that (i) the species originated in East Africa concomitantly with expanding grasslands some 2 Ma, and (ii) four parapatric and genetically well-defined lineages differentiated essentially from East to West following Pleistocene bioclimatic cycles. This strongly points towards allopatric genetic divergence within savannah refuges during humid episodes, then dispersal during arid ones; secondary contact zones would have then stabilized around geographic barriers, namely, Niger River and Lake Chad basins. Our results pertinently add to those obtained for several other African rodent as well as non-rodent species that inhabit forests, humid zones, savannahs and deserts, all studies that now allow one to depict a more comprehensive picture of the Pleistocene history of the continent south of the Sahara. In particular, although their precise location remains to be determined, at least three Pleistocene refuges are identified within the West and Central African savannah biome.Gauthier DobignyCaroline TatardPhilippe GauthierKhalilou BaJean-Marc DuplantierLaurent GranjonGael J KergoatPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 11, p e77815 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gauthier Dobigny Caroline Tatard Philippe Gauthier Khalilou Ba Jean-Marc Duplantier Laurent Granjon Gael J Kergoat Mitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.
description	A phylogeographic study was conducted on the Nile grass rat, Arvicanthis niloticus, a rodent species that is tightly associated with open grasslands from the Sudano-Sahelian regions. Using one mitochondrial (cytochrome b) and one nuclear (intron 7 of Beta Fibrinogen) gene, robust patterns were retrieved that clearly show that (i) the species originated in East Africa concomitantly with expanding grasslands some 2 Ma, and (ii) four parapatric and genetically well-defined lineages differentiated essentially from East to West following Pleistocene bioclimatic cycles. This strongly points towards allopatric genetic divergence within savannah refuges during humid episodes, then dispersal during arid ones; secondary contact zones would have then stabilized around geographic barriers, namely, Niger River and Lake Chad basins. Our results pertinently add to those obtained for several other African rodent as well as non-rodent species that inhabit forests, humid zones, savannahs and deserts, all studies that now allow one to depict a more comprehensive picture of the Pleistocene history of the continent south of the Sahara. In particular, although their precise location remains to be determined, at least three Pleistocene refuges are identified within the West and Central African savannah biome.
format	article
author	Gauthier Dobigny Caroline Tatard Philippe Gauthier Khalilou Ba Jean-Marc Duplantier Laurent Granjon Gael J Kergoat
author_facet	Gauthier Dobigny Caroline Tatard Philippe Gauthier Khalilou Ba Jean-Marc Duplantier Laurent Granjon Gael J Kergoat
author_sort	Gauthier Dobigny
title	Mitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.
title_short	Mitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.
title_full	Mitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.
title_fullStr	Mitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.
title_full_unstemmed	Mitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.
title_sort	mitochondrial and nuclear genes-based phylogeography of arvicanthis niloticus (murinae) and sub-saharan open habitats pleistocene history.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/9d34da4cf4294484a1137ec1500291da
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Mitochondrial and nuclear genes-based phylogeography of Arvicanthis niloticus (Murinae) and sub-Saharan open habitats pleistocene history.

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