Sökning: "Sorex araneus"

Hittade 4 avhandlingar innehållade orden Sorex araneus.

  1. 1. Postglacial Population History of the Common Shrew (Sorex araneus) in Fennoscandia : Molekylära studier av återkolonisation, könsbundet genflöde och kromosomrasbildning

    Författare :Anna-Carin Andersson; Håkan Tegelström; Cecilia Alström-Rapaport; Jeremy B Searle; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular genetics; Sorex araneus; chromosome race; postglacial recolonisation; hybrid zone; sex-biased gene flow; chromosomal evolution; Genetik; Genetics; Genetik;

    Sammanfattning : 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). LÄS MER

  3. 2. Mammalian Molecular Systematics with Emphasis on the Insectivore Order Lipotyphla

    Författare :Suzette Kay Mouchaty; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; rate heterogeneity; Thryonomys; Hystricognathi; Rodentia; Afrotheria; Echinops; Tenrecidae; Erinaceus; Erinaceidae; Chiroptera; Sorex; Soricidae; Talpa; Talpidae; Lipotyphla; Mammalia; mitochondrial DNA; molecular systematics; phylogeny; Genetics; cytogenetics; Genetik; cytogenetik;

    Sammanfattning : Insectivore classification has been one of the most controversial problems in mammalian systematics. Evolutionary relationships among the six extant families, Talpidae (moles), Soricidae (shrews), Erinaceidae (hedgehogs), Tenrecidae (tenrecs), Chryosochloridae (golden moles), and Solenodontidae (solenodons), have remained uncertain based on morphological data. LÄS MER

  4. 3. Chromosome rearrangements do not prevent gene flow in the common shrew, Sorex araneus : Analysis of two chromosomal hybrid zones in Sweden

    Författare :Yolanda Narain; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; Genetik; Clinical genetics; Klinisk genetik; Genetics; genetik; NATURAL SCIENCES;

    Sammanfattning : Two chromosomal hybrid zones of the common shrew, Sorex araneus, have been investigated: the Hällefors-Uppsala hybrid zone in central Sweden and the Abisko-Sidensjö hybrid zone in northern Sweden. The Hällefors (Hä) and Uppsala (Up) chromosome races consisted of biarmed autosomes only (2nA=18), and differed in the Robertsonian fusions of two arms, ko, pq, and kp, oq, respectively. LÄS MER

  5. 4. Puumala virus dynamics in bank voles along habitat and community gradients : the ecology and risk of an emerging infectious disease

    Författare :Hussein Khalil; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The majority of recent infectious disease outbreaks are zoonotic, i.e. caused by pathogens shared between humans and other vertebrates, and many of those originate in wildlife. The life cycle of zoonotic diseases is complex, and involves at least one non-human host. LÄS MER