uu.seUppsala universitets publikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Reduced levels of male gene flow in a hybrid zone between the North and West European karyotypic groups of the common shrew, Sorex araneus. Chromosomally based explanation for Haldane's rule?
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Teknisk-naturvetenskapliga fakulteten, Biologiska sektionen, Institutionen för ekologi och evolution, Naturvårdsbiologi och genetik.
Manuskript (Annet vitenskapelig)
Identifikatorer
URN: urn:nbn:se:uu:diva-91852OAI: oai:DiVA.org:uu-91852DiVA, id: diva2:164716
Tilgjengelig fra: 2004-05-13 Laget: 2004-05-13 Sist oppdatert: 2010-01-13bibliografisk kontrollert
Inngår i avhandling
1. Postglacial Population History of the Common Shrew (Sorex araneus) in Fennoscandia: Molekylära studier av återkolonisation, könsbundet genflöde och kromosomrasbildning.
Åpne denne publikasjonen i ny fane eller vindu >>Postglacial Population History of the Common Shrew (Sorex araneus) in Fennoscandia: Molekylära studier av återkolonisation, könsbundet genflöde och kromosomrasbildning.
2004 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Alternativ tittel[sv]
Den vanliga näbbmusens (Sorex araneus) postglaciala populationshistoria i Fennoskandien : Molekylära studier av återkolonisation, könsbundet genflöde och kromosomrasbildning.
Abstract [en]

The common shrew, Sorex araneus, has one of the most variable karyotypes among mammals, displaying numerous chromosomes races throughout its distribution, which can be categorized into different karyotypic groups. The objective of this thesis was to examine the postglacial population history of Fennoscandian common shrews using autosomal microsatellites, mitochondrial DNA (mtDNA) and a Y chromosome specific microsatellite (L8Y).

Autosomal microsatellites and mtDNA revealed weak genetic structure over a hybrid zone between the karyotypically divergent Northern and Western karyotypic groups. However, the genetic structure displayed by the Y chromosome microsatellite was orders of magnitude higher. Hence, considerable chromosomal differences between the groups do not prevent female gene flow, while male gene flow is reduced (cf. Haldane's rule). Further, the results suggest that the Haldane effect may be caused by the chromosomal differences between the karyotypic groups.

No mtDNA differentiation was observed either between chromosome races or between the Northern and Western karyotypic groups in Fennoscandia. The combined pattern of karyotypic and mtDNA variation of Fennoscandian common shrews, suggest bi-directional postglacial recolonisation from a single refugium in Europe. The variation of the Y-linked microsatellite supported this conclusion. In contrast, significant mtDNA structure, discordant with the karyotypic variation, revealed that common shrews in southern Finland belong to a different lineage than remaining Fennoscandian regions, implying postglacial recolonisation from a different source.

MtDNA variation of the chromosome races in Sweden supports the hypothesis that three races of the Western karyotypic group have been formed through whole arm reciprocal translocations (WARTs), as suggested by their mutual karyotypic variation. The variation of the molecular markers supports the theory of rapid karyotypic evolution in the common shrew.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2004. s. 56
Serie
Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1104-232X ; 986
Emneord
Molecular genetics, Sorex araneus, chromosome race, postglacial recolonisation, hybrid zone, sex-biased gene flow, chromosomal evolution, Genetik
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-4289 (URN)91-554-5986-2 (ISBN)
Disputas
2004-06-04, Zootissalen, EBC, Uppsala, 10:00
Opponent
Veileder
Tilgjengelig fra: 2004-05-13 Laget: 2004-05-13bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric

urn-nbn
Totalt: 645 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf