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Gene flow and range expansion in a mountain-dwelling passerine with a fragmented distribution
Biological journal of the Linnean Society, 2011-07, Vol.103 (3), p.707-721, Article 707
FÖRSCHLER, MARC I
SENAR, JUAN CARLOS
BORRAS, ANTONI
CABRERA, JOSEP
BJÖRKLUND, MATS
2011
Details
Autor(en) / Beteiligte
FÖRSCHLER, MARC I
SENAR, JUAN CARLOS
BORRAS, ANTONI
CABRERA, JOSEP
BJÖRKLUND, MATS
Titel
Gene flow and range expansion in a mountain-dwelling passerine with a fragmented distribution
Ist Teil von
Biological journal of the Linnean Society, 2011-07, Vol.103 (3), p.707-721, Article 707
Ort / Verlag
Oxford, UK: Blackwell Publishing Ltd
Erscheinungsjahr
2011
Link zum Volltext
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
We studied gene flow and bottleneck events in the population history of locally isolated citril finches endemic to European mountains. For the present study, we used two genetic markers with different rates of evolution: a fast evolving mitochondrial marker (ATPase6/8) and a more slowly evolving nuclear marker (02401). Populations north of the Pyrenees showed in general fewer haplotypes and a considerable lower nucleotide and gene diversity than the Iberian populations. Unexpectedly, we found very little genetic variability in the fast evolving mitochondrial marker, arguing for a strong and relatively recent bottleneck event in the species population history. This pattern potentially reflects a sudden decrease of crucial resources during Mid-Holocene (mountain pine, Scots pine, and black pine) and a subsequent breakdown of the population. The bottleneck could also have been caused or coincide with a selective sweep in the mitochondrion. By contrast, the slowly evolving nuclear marker showed a much higher variability. This marker probably reflects major gene flow along a potential expansion pathway from the Eastern Pyrenees, northwards to the populations of Central Europe, and southwards to the more fragmented populations of central and southern Spain. The population of the Western Pyrenees (Navarra) appears to be cut-off from this major gene flow and our data indicate a certain degree of partial isolation, probably reflecting more ancient events (e.g. the separation in distinct refuge sites during the last glacial maximum). © 2011 The Linnean Society of London, Biological Journal of the Linnean Society, 2011, 103, 707-721.
Sprache
Englisch
Identifikatoren
ISSN: 0024-4066, 1095-8312
eISSN: 1095-8312
DOI: 10.1111/j.1095-8312.2011.01665.x
Titel-ID: cdi_swepub_primary_oai_DiVA_org_uu_156972
Format
–
Schlagworte
Biologi
,
Biological and medical sciences
,
Biological evolution
,
Biology
,
evolution
,
fragmentation
,
Fringillidae
,
Fundamental and applied biological sciences. Psychology
,
gene flow
,
genetic markers
,
genetic structure
,
genetic variation
,
Genetics of eukaryotes. Biological and molecular evolution
,
haplotypes
,
major genes
,
mountains
,
NATURAL SCIENCES
,
NATURVETENSKAP
,
Pinus nigra
,
Pinus sylvestris
,
population genetics
,
Population genetics, reproduction patterns
,
postglacial
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