About: The role of dispersal and vicariance in the Pleistocene history of an East African mountain rodent, Praomys delectorum     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

AttributesValues
rdf:type
Description
  • Aim Species living in East African montane forests have highly fragmented distributions. Plio-Pleistocene climatic cycles, however, may have allowed temporary contact between forest blocks, thereby allowing gene flow. Our aim was to reconstruct the colonization history of Praomys delectorum, a rodent species adapted to montane forests. We tested two alternative scenarios: (1) the occurrence of a series of vicariance events related to Quaternary climatic changes; and (2) colonization from a single origin through successive dispersal events. Location Montane forests of East Africa. Methods Analyses were based on large-scale sampling covering the complete range of the species distribution. We assessed genetic structure and historical demography using a combination of mitochondrial and nuclear markers. Morphological differences between allopatric populations were analysed using a geometric morphometric approach. Results Populations of P. delectorum are genetically differentiated along the north–south axis of the distribution range, consistent with postulated vicariance events. The oldest vicariance event, which separated the species into three main genetic groups, dates to the beginning of the Pleistocene. Further fragmentation within the three main lineages is consistent with successive vicariance events, probably linked to Pleistocene climatic cycles. Morphological variation between geographically structured populations may indicate local environmental adaptations. Main conclusions The most likely explanation for the strong genetic differentiation among fragmented populations is a series of vicariance events caused by periodic fragmentation of montane forests that resulted from climatic oscillations in the Pleistocene, rather than successive dispersal events. The recently proposed splitting of P. delectorum into three allopatric morphospecies only partly reflects the observed genetic structure.
  • Aim Species living in East African montane forests have highly fragmented distributions. Plio-Pleistocene climatic cycles, however, may have allowed temporary contact between forest blocks, thereby allowing gene flow. Our aim was to reconstruct the colonization history of Praomys delectorum, a rodent species adapted to montane forests. We tested two alternative scenarios: (1) the occurrence of a series of vicariance events related to Quaternary climatic changes; and (2) colonization from a single origin through successive dispersal events. Location Montane forests of East Africa. Methods Analyses were based on large-scale sampling covering the complete range of the species distribution. We assessed genetic structure and historical demography using a combination of mitochondrial and nuclear markers. Morphological differences between allopatric populations were analysed using a geometric morphometric approach. Results Populations of P. delectorum are genetically differentiated along the north–south axis of the distribution range, consistent with postulated vicariance events. The oldest vicariance event, which separated the species into three main genetic groups, dates to the beginning of the Pleistocene. Further fragmentation within the three main lineages is consistent with successive vicariance events, probably linked to Pleistocene climatic cycles. Morphological variation between geographically structured populations may indicate local environmental adaptations. Main conclusions The most likely explanation for the strong genetic differentiation among fragmented populations is a series of vicariance events caused by periodic fragmentation of montane forests that resulted from climatic oscillations in the Pleistocene, rather than successive dispersal events. The recently proposed splitting of P. delectorum into three allopatric morphospecies only partly reflects the observed genetic structure. (en)
Title
  • The role of dispersal and vicariance in the Pleistocene history of an East African mountain rodent, Praomys delectorum
  • The role of dispersal and vicariance in the Pleistocene history of an East African mountain rodent, Praomys delectorum (en)
skos:prefLabel
  • The role of dispersal and vicariance in the Pleistocene history of an East African mountain rodent, Praomys delectorum
  • The role of dispersal and vicariance in the Pleistocene history of an East African mountain rodent, Praomys delectorum (en)
skos:notation
  • RIV/68081766:_____/14:00394827!RIV15-GA0-68081766
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(GAP506/10/0983)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 43100
http://linked.open...ai/riv/idVysledku
  • RIV/68081766:_____/14:00394827
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Cytochrome b; Eastern Arc Mountains; microsatellites; montane forests; Pleistocene climate changes; Praomys delectorum; Muridae; Southern Rift (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [45DF9D0FA6BB]
http://linked.open...i/riv/nazevZdroje
  • Journal of Biogeography
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 41
http://linked.open...iv/tvurceVysledku
  • Bryja, Josef
  • Mikula, Ondřej
  • Patzenhauerová, Hana
  • Verheyen, E.
  • Šumbera, R.
  • Oguge, N. O.
http://linked.open...ain/vavai/riv/wos
  • 000328271500017
issn
  • 0305-0270
number of pages
http://bibframe.org/vocab/doi
  • 10.1111/jbi.12195
Faceted Search & Find service v1.16.118 as of Jun 21 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 82 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software