The genetic basis of variation in clutch size and onset of laying in a wild population of House Sparrows (Passer domesticus)
Understanding the basis of genetic variation is a general goal in evolutionary biology. Towards this goal, the architectures of the standing genetic variation in two life history traits, clutch size and onset of laying, were investigated in an insular house sparrow population off the coast of Northe...
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2016
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2392929 2023-05-15T17:43:25+02:00 The genetic basis of variation in clutch size and onset of laying in a wild population of House Sparrows (Passer domesticus) Bjerck, Helge Bostwick Jensen, Henrik Husby, Arild Hagen, Ingerid 2016 http://hdl.handle.net/11250/2392929 eng eng NTNU ntnudaim:12516 http://hdl.handle.net/11250/2392929 33 Biology (MSBIO) Ecology Behaviour Evolution and Biosystematics Master thesis 2016 ftntnutrondheimi 2019-09-17T06:51:37Z Understanding the basis of genetic variation is a general goal in evolutionary biology. Towards this goal, the architectures of the standing genetic variation in two life history traits, clutch size and onset of laying, were investigated in an insular house sparrow population off the coast of Northern Norway. A newly developed 200K SNP-array was used for genome-wide association mapping (GWAS) and genome partitioning. No genome-wide significant or suggestive loci were detected for either trait. Estimated heritabilities were 0.10 and 0.06 for clutch size and onset of laying, respectively. While genome partitioning was able to show that clutch size was polygenic, differences between subpopulations confounded attempts to characterize lay date. This study highlights the dangers of performing GWAS across diverging subpopulations. Master Thesis Northern Norway NTNU Open Archive (Norwegian University of Science and Technology) Norway |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
topic |
Biology (MSBIO) Ecology Behaviour Evolution and Biosystematics |
spellingShingle |
Biology (MSBIO) Ecology Behaviour Evolution and Biosystematics Bjerck, Helge Bostwick The genetic basis of variation in clutch size and onset of laying in a wild population of House Sparrows (Passer domesticus) |
topic_facet |
Biology (MSBIO) Ecology Behaviour Evolution and Biosystematics |
description |
Understanding the basis of genetic variation is a general goal in evolutionary biology. Towards this goal, the architectures of the standing genetic variation in two life history traits, clutch size and onset of laying, were investigated in an insular house sparrow population off the coast of Northern Norway. A newly developed 200K SNP-array was used for genome-wide association mapping (GWAS) and genome partitioning. No genome-wide significant or suggestive loci were detected for either trait. Estimated heritabilities were 0.10 and 0.06 for clutch size and onset of laying, respectively. While genome partitioning was able to show that clutch size was polygenic, differences between subpopulations confounded attempts to characterize lay date. This study highlights the dangers of performing GWAS across diverging subpopulations. |
author2 |
Jensen, Henrik Husby, Arild Hagen, Ingerid |
format |
Master Thesis |
author |
Bjerck, Helge Bostwick |
author_facet |
Bjerck, Helge Bostwick |
author_sort |
Bjerck, Helge Bostwick |
title |
The genetic basis of variation in clutch size and onset of laying in a wild population of House Sparrows (Passer domesticus) |
title_short |
The genetic basis of variation in clutch size and onset of laying in a wild population of House Sparrows (Passer domesticus) |
title_full |
The genetic basis of variation in clutch size and onset of laying in a wild population of House Sparrows (Passer domesticus) |
title_fullStr |
The genetic basis of variation in clutch size and onset of laying in a wild population of House Sparrows (Passer domesticus) |
title_full_unstemmed |
The genetic basis of variation in clutch size and onset of laying in a wild population of House Sparrows (Passer domesticus) |
title_sort |
genetic basis of variation in clutch size and onset of laying in a wild population of house sparrows (passer domesticus) |
publisher |
NTNU |
publishDate |
2016 |
url |
http://hdl.handle.net/11250/2392929 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_source |
33 |
op_relation |
ntnudaim:12516 http://hdl.handle.net/11250/2392929 |
_version_ |
1766145485992624128 |