Distribution of Temperature Tolerance Quantitative Trait Loci in Arctic Charr ( Salvelinus alpinus ) and Inferred Homologies in Rainbow Trout ( Oncorhynchus mykiss )
Abstract We searched for quantitative trait loci (QTL) affecting upper temperature tolerance (UTT) in crosses between the Nauyuk Lake and Fraser River strains of Arctic charr (Salvelinus alpinus) using survival analysis. Two QTL were detected by using two microsatellite markers after correcting for...
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Online Access: | http://dx.doi.org/10.1093/genetics/165.3.1443 https://academic.oup.com/genetics/article-pdf/165/3/1443/42052498/genetics1443.pdf |
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croxfordunivpr:10.1093/genetics/165.3.1443 2024-01-07T09:40:50+01:00 Distribution of Temperature Tolerance Quantitative Trait Loci in Arctic Charr ( Salvelinus alpinus ) and Inferred Homologies in Rainbow Trout ( Oncorhynchus mykiss ) Somorjai, Ildiko M L Danzmann, Roy G Ferguson, Moira M 2003 http://dx.doi.org/10.1093/genetics/165.3.1443 https://academic.oup.com/genetics/article-pdf/165/3/1443/42052498/genetics1443.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Genetics volume 165, issue 3, page 1443-1456 ISSN 1943-2631 Genetics journal-article 2003 croxfordunivpr https://doi.org/10.1093/genetics/165.3.1443 2023-12-08T09:48:33Z Abstract We searched for quantitative trait loci (QTL) affecting upper temperature tolerance (UTT) in crosses between the Nauyuk Lake and Fraser River strains of Arctic charr (Salvelinus alpinus) using survival analysis. Two QTL were detected by using two microsatellite markers after correcting for experiment-wide error. A comparative mapping approach localized these two QTL to homologous linkage groups containing UTT QTL in rainbow trout (Oncorhynchus mykiss). Additional marginal associations were detected in several families in regions homologous to those with QTL in rainbow trout. Thus, the genes underlying UTT QTL may antedate the divergence of these two species, which occurred by ∼16 MYA. The data also indicate that one pair of homeologs (ancestrally duplicated chromosomal segments) have contained QTL in Arctic charr since the evolution of salmonids from a tetraploid ancestor 25-100 MYA. This study represents one of the first examples of comparative QTL mapping in an animal polyploid group and illustrates the fate of QTL after genome duplication and reorganization. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Oxford University Press (via Crossref) Arctic Fraser River ENVELOPE(-62.243,-62.243,56.619,56.619) Utt ENVELOPE(19.408,19.408,69.992,69.992) Genetics 165 3 1443 1456 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Genetics |
spellingShingle |
Genetics Somorjai, Ildiko M L Danzmann, Roy G Ferguson, Moira M Distribution of Temperature Tolerance Quantitative Trait Loci in Arctic Charr ( Salvelinus alpinus ) and Inferred Homologies in Rainbow Trout ( Oncorhynchus mykiss ) |
topic_facet |
Genetics |
description |
Abstract We searched for quantitative trait loci (QTL) affecting upper temperature tolerance (UTT) in crosses between the Nauyuk Lake and Fraser River strains of Arctic charr (Salvelinus alpinus) using survival analysis. Two QTL were detected by using two microsatellite markers after correcting for experiment-wide error. A comparative mapping approach localized these two QTL to homologous linkage groups containing UTT QTL in rainbow trout (Oncorhynchus mykiss). Additional marginal associations were detected in several families in regions homologous to those with QTL in rainbow trout. Thus, the genes underlying UTT QTL may antedate the divergence of these two species, which occurred by ∼16 MYA. The data also indicate that one pair of homeologs (ancestrally duplicated chromosomal segments) have contained QTL in Arctic charr since the evolution of salmonids from a tetraploid ancestor 25-100 MYA. This study represents one of the first examples of comparative QTL mapping in an animal polyploid group and illustrates the fate of QTL after genome duplication and reorganization. |
format |
Article in Journal/Newspaper |
author |
Somorjai, Ildiko M L Danzmann, Roy G Ferguson, Moira M |
author_facet |
Somorjai, Ildiko M L Danzmann, Roy G Ferguson, Moira M |
author_sort |
Somorjai, Ildiko M L |
title |
Distribution of Temperature Tolerance Quantitative Trait Loci in Arctic Charr ( Salvelinus alpinus ) and Inferred Homologies in Rainbow Trout ( Oncorhynchus mykiss ) |
title_short |
Distribution of Temperature Tolerance Quantitative Trait Loci in Arctic Charr ( Salvelinus alpinus ) and Inferred Homologies in Rainbow Trout ( Oncorhynchus mykiss ) |
title_full |
Distribution of Temperature Tolerance Quantitative Trait Loci in Arctic Charr ( Salvelinus alpinus ) and Inferred Homologies in Rainbow Trout ( Oncorhynchus mykiss ) |
title_fullStr |
Distribution of Temperature Tolerance Quantitative Trait Loci in Arctic Charr ( Salvelinus alpinus ) and Inferred Homologies in Rainbow Trout ( Oncorhynchus mykiss ) |
title_full_unstemmed |
Distribution of Temperature Tolerance Quantitative Trait Loci in Arctic Charr ( Salvelinus alpinus ) and Inferred Homologies in Rainbow Trout ( Oncorhynchus mykiss ) |
title_sort |
distribution of temperature tolerance quantitative trait loci in arctic charr ( salvelinus alpinus ) and inferred homologies in rainbow trout ( oncorhynchus mykiss ) |
publisher |
Oxford University Press (OUP) |
publishDate |
2003 |
url |
http://dx.doi.org/10.1093/genetics/165.3.1443 https://academic.oup.com/genetics/article-pdf/165/3/1443/42052498/genetics1443.pdf |
long_lat |
ENVELOPE(-62.243,-62.243,56.619,56.619) ENVELOPE(19.408,19.408,69.992,69.992) |
geographic |
Arctic Fraser River Utt |
geographic_facet |
Arctic Fraser River Utt |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
Genetics volume 165, issue 3, page 1443-1456 ISSN 1943-2631 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/genetics/165.3.1443 |
container_title |
Genetics |
container_volume |
165 |
container_issue |
3 |
container_start_page |
1443 |
op_container_end_page |
1456 |
_version_ |
1787421617596399616 |