Genetic variation associated with adult migration timing in lineages of Steelhead and Chinook Salmon in the Columbia River
Abstract With the discovery of a major effect region (GREB1L, ROCK1) for adult migration timing in genomes of both Chinook Salmon and Steelhead, several subsequent studies have investigated the effect size and distribution of early and late migration alleles among populations in the Columbia River....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-02-01
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| Series: | Evolutionary Applications |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/eva.13626 |
| _version_ | 1797294404949508096 |
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| author | Shawn R. Narum Rebekah Horn Stuart Willis Ilana Koch Jon Hess |
| author_facet | Shawn R. Narum Rebekah Horn Stuart Willis Ilana Koch Jon Hess |
| author_sort | Shawn R. Narum |
| collection | DOAJ |
| description | Abstract With the discovery of a major effect region (GREB1L, ROCK1) for adult migration timing in genomes of both Chinook Salmon and Steelhead, several subsequent studies have investigated the effect size and distribution of early and late migration alleles among populations in the Columbia River. Here, we synthesize the results of these studies for the major lineages of Chinook Salmon and Steelhead that include highly distinct groups in the interior Columbia River that exhibit atypical life histories from most coastal lineage populations of these two species. Whole‐genome studies with high marker density have provided extensive insight into SNPs most associated with adult migration timing, and suites of markers for each species have been genotyped in large numbers of individuals to further validate phenotypic effects. For Steelhead, the largest phenotypic effect sizes have been observed in the coastal lineage (36% of variation for passage timing at Bonneville Dam; 43% of variation for tributary arrival timing) compared to the inland lineage (7.5% of variation for passage timing at Bonneville Dam; 8.4% of variation for tributary arrival timing) that overwinter in freshwater prior to spawning. For Chinook Salmon, large effect sizes have been observed in all three lineages for multiple adult migration phenotypes (Coastal lineage: percentage of variation of 27.9% for passage timing at Bonneville Dam, 28.7% for arrival timing for spawning; Interior ocean type: percentage of variation of 47.6% for passage timing at Bonneville Dam, 39.6% for tributary arrival timing, 77.9% for arrival timing for spawning; Interior stream type: percentage of variation of 35.3% for passage at Bonneville Dam, 9.8% for tributary arrival timing, 4.7% for arrival timing for spawning). Together, these results have extended our understanding of genetic variation associated with life history diversity in distinct populations of the Columbia River, however, much research remains necessary to determine the causal mechanism for this major effect region on migration timing in these species. |
| first_indexed | 2024-03-07T21:29:48Z |
| format | Article |
| id | doaj.art-733e50bf6596406bb53e31f700ed3e6a |
| institution | Directory Open Access Journal |
| issn | 1752-4571 |
| language | English |
| last_indexed | 2024-03-07T21:29:48Z |
| publishDate | 2024-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Evolutionary Applications |
| spelling | doaj.art-733e50bf6596406bb53e31f700ed3e6a2024-02-27T00:12:39ZengWileyEvolutionary Applications1752-45712024-02-01172n/an/a10.1111/eva.13626Genetic variation associated with adult migration timing in lineages of Steelhead and Chinook Salmon in the Columbia RiverShawn R. Narum0Rebekah Horn1Stuart Willis2Ilana Koch3Jon Hess4Columbia River Inter‐Tribal Fish Commission Hagerman Genetics Laboratory Hagerman Idaho USAColumbia River Inter‐Tribal Fish Commission Hagerman Genetics Laboratory Hagerman Idaho USAColumbia River Inter‐Tribal Fish Commission Hagerman Genetics Laboratory Hagerman Idaho USAColumbia River Inter‐Tribal Fish Commission Hagerman Genetics Laboratory Hagerman Idaho USAColumbia River Inter‐Tribal Fish Commission Portland Oregon USAAbstract With the discovery of a major effect region (GREB1L, ROCK1) for adult migration timing in genomes of both Chinook Salmon and Steelhead, several subsequent studies have investigated the effect size and distribution of early and late migration alleles among populations in the Columbia River. Here, we synthesize the results of these studies for the major lineages of Chinook Salmon and Steelhead that include highly distinct groups in the interior Columbia River that exhibit atypical life histories from most coastal lineage populations of these two species. Whole‐genome studies with high marker density have provided extensive insight into SNPs most associated with adult migration timing, and suites of markers for each species have been genotyped in large numbers of individuals to further validate phenotypic effects. For Steelhead, the largest phenotypic effect sizes have been observed in the coastal lineage (36% of variation for passage timing at Bonneville Dam; 43% of variation for tributary arrival timing) compared to the inland lineage (7.5% of variation for passage timing at Bonneville Dam; 8.4% of variation for tributary arrival timing) that overwinter in freshwater prior to spawning. For Chinook Salmon, large effect sizes have been observed in all three lineages for multiple adult migration phenotypes (Coastal lineage: percentage of variation of 27.9% for passage timing at Bonneville Dam, 28.7% for arrival timing for spawning; Interior ocean type: percentage of variation of 47.6% for passage timing at Bonneville Dam, 39.6% for tributary arrival timing, 77.9% for arrival timing for spawning; Interior stream type: percentage of variation of 35.3% for passage at Bonneville Dam, 9.8% for tributary arrival timing, 4.7% for arrival timing for spawning). Together, these results have extended our understanding of genetic variation associated with life history diversity in distinct populations of the Columbia River, however, much research remains necessary to determine the causal mechanism for this major effect region on migration timing in these species.https://doi.org/10.1111/eva.13626GREB1L/ROCK1interior lineagesmigration timingsalmonids |
| spellingShingle | Shawn R. Narum Rebekah Horn Stuart Willis Ilana Koch Jon Hess Genetic variation associated with adult migration timing in lineages of Steelhead and Chinook Salmon in the Columbia River Evolutionary Applications GREB1L/ROCK1 interior lineages migration timing salmonids |
| title | Genetic variation associated with adult migration timing in lineages of Steelhead and Chinook Salmon in the Columbia River |
| title_full | Genetic variation associated with adult migration timing in lineages of Steelhead and Chinook Salmon in the Columbia River |
| title_fullStr | Genetic variation associated with adult migration timing in lineages of Steelhead and Chinook Salmon in the Columbia River |
| title_full_unstemmed | Genetic variation associated with adult migration timing in lineages of Steelhead and Chinook Salmon in the Columbia River |
| title_short | Genetic variation associated with adult migration timing in lineages of Steelhead and Chinook Salmon in the Columbia River |
| title_sort | genetic variation associated with adult migration timing in lineages of steelhead and chinook salmon in the columbia river |
| topic | GREB1L/ROCK1 interior lineages migration timing salmonids |
| url | https://doi.org/10.1111/eva.13626 |
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