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Quantitative Genetics and Genome Structure in a Wild Population: the Use of a Great Reed Warbler Pedigree

Mikael Åkesson-2006-01-01-Lund University Publications (Lund University)
2

TL;DRAbstract

Long-term studies of birds play an important role in the understanding of quantitative traits in natural populations. The relative ease by which individual birds can be monitored and caught in the wild enable us collect detailed information from individuals throughout their life time, sometimes from several generations in a population. In this thesis I describe the utilization of a great reed warbler (Acrocephalus arundinaceus) pedigree to shed light on the genome structure of passerine birds and the variation in quantitative traits. The significant heritabilities among seven of eight studied traits indicate that the great reed warblers show potential to evolve phenotypically. Moreover, several traits have been subject to moderate forces of natural selection. However, we also find that evolution might be hampered by the high genetic correlation among the morphological traits and the sexual antagonistic selection observed in wing length. In the first paper of the thesis, quantitative ge

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Long-term studies of birds play an important role in the understanding of quantitative traits in natural populations. The relative ease by which individual birds can be monitored and caught in the wild enable us collect detailed information from individuals throughout their life time, sometimes from several generations in a population. In this thesis I describe the utilization of a great reed warbler (Acrocephalus arundinaceus) pedigree to shed light on the genome structure of passerine birds and the variation in quantitative traits. The significant heritabilities among seven of eight studied traits indicate that the great reed warblers show potential to evolve phenotypically. Moreover, several traits have been subject to moderate forces of natural selection. However, we also find that evolution might be hampered by the high genetic correlation among the morphological traits and the sexual antagonistic selection observed in wing length. In the first paper of the thesis, quantitative ge

Keywords

BiologyHeritabilityQuantitative geneticsPasserineDirectional selectionSelection (genetic algorithm)Natural selectionAcrocephalus

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