Tracing the evolution of amniote chromosomes

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    Abstract

    A great deal of diversity in chromosome number and arrangement is observed across the amniote phylogeny. Understanding how this diversity is generated is important for determining the role of chromosomal rearrangements in generating phenotypic variation and speciation. Gaining this understanding is achieved by reconstructing the ancestral genome arrangement based on comparisons of genome organization of extant species. Ancestral karyotypes for several amniote lineages have been reconstructed, mainly from cross-species chromosome painting data. The availability of anchored whole genome sequences for amniote species has increased the evolutionary depth and confidence of ancestral reconstructions from those made solely from chromosome painting data. Nonetheless, there are still several key lineages where the appropriate data required for ancestral reconstructions is lacking. This review highlights the progress that has been made towards understanding the chromosomal changes that have occurred during amniote evolution and the reconstruction of ancestral karyotypes.
    Original languageEnglish
    Pages (from-to)201-216
    Number of pages16
    JournalChromosoma
    Volume123
    Issue number3
    DOIs
    Publication statusPublished - 2014

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    Chromosome Painting
    Chromosomes
    Genome
    Karyotype
    Phylogeny

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    title = "Tracing the evolution of amniote chromosomes",
    abstract = "A great deal of diversity in chromosome number and arrangement is observed across the amniote phylogeny. Understanding how this diversity is generated is important for determining the role of chromosomal rearrangements in generating phenotypic variation and speciation. Gaining this understanding is achieved by reconstructing the ancestral genome arrangement based on comparisons of genome organization of extant species. Ancestral karyotypes for several amniote lineages have been reconstructed, mainly from cross-species chromosome painting data. The availability of anchored whole genome sequences for amniote species has increased the evolutionary depth and confidence of ancestral reconstructions from those made solely from chromosome painting data. Nonetheless, there are still several key lineages where the appropriate data required for ancestral reconstructions is lacking. This review highlights the progress that has been made towards understanding the chromosomal changes that have occurred during amniote evolution and the reconstruction of ancestral karyotypes.",
    keywords = "Comparative genomics, Chromosome painting, Ancestral karyotype, Reptile, Bird, Mammal., Mammal, Chromosome Painting, Humans, Phylogeny, Animals, Vertebrates/classification, Chromosomes/genetics, Evolution, Molecular",
    author = "Janine DEAKIN and Tariq EZAZ",
    year = "2014",
    doi = "10.1007/s00412-014-0456-y",
    language = "English",
    volume = "123",
    pages = "201--216",
    journal = "Chromosoma",
    issn = "0009-5915",
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    }

    Tracing the evolution of amniote chromosomes. / DEAKIN, Janine; EZAZ, Tariq.

    In: Chromosoma, Vol. 123, No. 3, 2014, p. 201-216.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Tracing the evolution of amniote chromosomes

    AU - DEAKIN, Janine

    AU - EZAZ, Tariq

    PY - 2014

    Y1 - 2014

    N2 - A great deal of diversity in chromosome number and arrangement is observed across the amniote phylogeny. Understanding how this diversity is generated is important for determining the role of chromosomal rearrangements in generating phenotypic variation and speciation. Gaining this understanding is achieved by reconstructing the ancestral genome arrangement based on comparisons of genome organization of extant species. Ancestral karyotypes for several amniote lineages have been reconstructed, mainly from cross-species chromosome painting data. The availability of anchored whole genome sequences for amniote species has increased the evolutionary depth and confidence of ancestral reconstructions from those made solely from chromosome painting data. Nonetheless, there are still several key lineages where the appropriate data required for ancestral reconstructions is lacking. This review highlights the progress that has been made towards understanding the chromosomal changes that have occurred during amniote evolution and the reconstruction of ancestral karyotypes.

    AB - A great deal of diversity in chromosome number and arrangement is observed across the amniote phylogeny. Understanding how this diversity is generated is important for determining the role of chromosomal rearrangements in generating phenotypic variation and speciation. Gaining this understanding is achieved by reconstructing the ancestral genome arrangement based on comparisons of genome organization of extant species. Ancestral karyotypes for several amniote lineages have been reconstructed, mainly from cross-species chromosome painting data. The availability of anchored whole genome sequences for amniote species has increased the evolutionary depth and confidence of ancestral reconstructions from those made solely from chromosome painting data. Nonetheless, there are still several key lineages where the appropriate data required for ancestral reconstructions is lacking. This review highlights the progress that has been made towards understanding the chromosomal changes that have occurred during amniote evolution and the reconstruction of ancestral karyotypes.

    KW - Comparative genomics

    KW - Chromosome painting

    KW - Ancestral karyotype

    KW - Reptile

    KW - Bird

    KW - Mammal.

    KW - Mammal

    KW - Chromosome Painting

    KW - Humans

    KW - Phylogeny

    KW - Animals

    KW - Vertebrates/classification

    KW - Chromosomes/genetics

    KW - Evolution, Molecular

    UR - http://www.scopus.com/inward/record.url?scp=84904212145&partnerID=8YFLogxK

    UR - http://www.mendeley.com/research/tracing-evolution-amniote-chromosomes

    U2 - 10.1007/s00412-014-0456-y

    DO - 10.1007/s00412-014-0456-y

    M3 - Article

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