A genetic analysis of early development in pink ( Oncorhynchus gorbuscha ) and chum salmon ( Oncorhynchus keta ) at three different temperatures
A factorial mating design was employed in which five males were mated to each of five females in each of two stocks for both pink and chum salmon. The resulting embryos and alevins were incubated at constant water temperatures of 4, 8, and 16 °C for pink salmon and 3, 8, and 15 °C for chum salmon. V...
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1988
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Online Access: | http://dx.doi.org/10.1139/g88-015 http://www.nrcresearchpress.com/doi/pdf/10.1139/g88-015 |
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crcansciencepubl:10.1139/g88-015 2023-12-17T10:48:11+01:00 A genetic analysis of early development in pink ( Oncorhynchus gorbuscha ) and chum salmon ( Oncorhynchus keta ) at three different temperatures Beacham, Terry D. 1988 http://dx.doi.org/10.1139/g88-015 http://www.nrcresearchpress.com/doi/pdf/10.1139/g88-015 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Genome volume 30, issue 1, page 89-96 ISSN 0831-2796 1480-3321 Genetics Molecular Biology General Medicine Biotechnology journal-article 1988 crcansciencepubl https://doi.org/10.1139/g88-015 2023-11-19T13:38:29Z A factorial mating design was employed in which five males were mated to each of five females in each of two stocks for both pink and chum salmon. The resulting embryos and alevins were incubated at constant water temperatures of 4, 8, and 16 °C for pink salmon and 3, 8, and 15 °C for chum salmon. Variation among families in alevin and fry survival rates, hatching, button-up time, length, and weight was the least at 8 °C. Heritability of traits directly correlated with fitness, such as survival rates and button-up time, was low at all temperatures (h 2 ≤ 0.25). Maternal effects could account for a substantial portion of the variation in alevin and fry size characters. Nonadditive genetic variance accounted for more of the variation in fry size characters than in those of alevins. Negative genetic correlations were observed between embryo survival and subsequent alevin size and between hatching time and subsequent alevin and fry size. Genotype–temperature interactions could underlie a substantial amount of phenotypic variation in the developmental characters examined for both species.Key words: development, genetic variation, quantitative genetics, salmon. Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon Canadian Science Publishing (via Crossref) Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Genome 30 1 89 96 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Genetics Molecular Biology General Medicine Biotechnology |
spellingShingle |
Genetics Molecular Biology General Medicine Biotechnology Beacham, Terry D. A genetic analysis of early development in pink ( Oncorhynchus gorbuscha ) and chum salmon ( Oncorhynchus keta ) at three different temperatures |
topic_facet |
Genetics Molecular Biology General Medicine Biotechnology |
description |
A factorial mating design was employed in which five males were mated to each of five females in each of two stocks for both pink and chum salmon. The resulting embryos and alevins were incubated at constant water temperatures of 4, 8, and 16 °C for pink salmon and 3, 8, and 15 °C for chum salmon. Variation among families in alevin and fry survival rates, hatching, button-up time, length, and weight was the least at 8 °C. Heritability of traits directly correlated with fitness, such as survival rates and button-up time, was low at all temperatures (h 2 ≤ 0.25). Maternal effects could account for a substantial portion of the variation in alevin and fry size characters. Nonadditive genetic variance accounted for more of the variation in fry size characters than in those of alevins. Negative genetic correlations were observed between embryo survival and subsequent alevin size and between hatching time and subsequent alevin and fry size. Genotype–temperature interactions could underlie a substantial amount of phenotypic variation in the developmental characters examined for both species.Key words: development, genetic variation, quantitative genetics, salmon. |
format |
Article in Journal/Newspaper |
author |
Beacham, Terry D. |
author_facet |
Beacham, Terry D. |
author_sort |
Beacham, Terry D. |
title |
A genetic analysis of early development in pink ( Oncorhynchus gorbuscha ) and chum salmon ( Oncorhynchus keta ) at three different temperatures |
title_short |
A genetic analysis of early development in pink ( Oncorhynchus gorbuscha ) and chum salmon ( Oncorhynchus keta ) at three different temperatures |
title_full |
A genetic analysis of early development in pink ( Oncorhynchus gorbuscha ) and chum salmon ( Oncorhynchus keta ) at three different temperatures |
title_fullStr |
A genetic analysis of early development in pink ( Oncorhynchus gorbuscha ) and chum salmon ( Oncorhynchus keta ) at three different temperatures |
title_full_unstemmed |
A genetic analysis of early development in pink ( Oncorhynchus gorbuscha ) and chum salmon ( Oncorhynchus keta ) at three different temperatures |
title_sort |
genetic analysis of early development in pink ( oncorhynchus gorbuscha ) and chum salmon ( oncorhynchus keta ) at three different temperatures |
publisher |
Canadian Science Publishing |
publishDate |
1988 |
url |
http://dx.doi.org/10.1139/g88-015 http://www.nrcresearchpress.com/doi/pdf/10.1139/g88-015 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) |
geographic |
Keta |
geographic_facet |
Keta |
genre |
Oncorhynchus gorbuscha Pink salmon |
genre_facet |
Oncorhynchus gorbuscha Pink salmon |
op_source |
Genome volume 30, issue 1, page 89-96 ISSN 0831-2796 1480-3321 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/g88-015 |
container_title |
Genome |
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30 |
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1 |
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89 |
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96 |
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1785572283566260224 |