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| DOI | 10.1139/cjz-2023-0086 |
| Selection effects on early life history traits and thermal resistance in brook charr Salvelinus fontinalis | |
| 发表日期 | 2024 |
| ISSN | 0008-4301 |
| EISSN | 1480-3283 |
| 起始页码 | 102 |
| 结束页码 | 5 |
| 卷号 | 102期号:5 |
| 英文摘要 | In the context of climate change, it is crucial to understand whether animals that have been domesticated and (or) selected maintain their abilities to adapt to changes in their thermal environment. Here, we tested how selection for absence of early sexual maturation combined with better growth performance may have impacted thermal resistance and gene expression response in the presence of thermal stress in brook charr Salvelinus fontinalis (Mitchill, 1814). We performed temperature challenge tests on brook charr 0+ juveniles and studied the expression of genes involved in the response to oxidative stress, in synthesis of heat shock proteins, or involved in regulation of apoptosis, in heart and liver tissues. Juveniles from the selected lineage had a higher thermal resistance than controls and a loss of equilibrium occurred on average 1(degrees)C above what was observed for the controls. The relative expressions of catalase and HSP70 were significantly higher in juveniles from the selection program. Overall, thermally sensitive fish were characterized by low mass and length and lower relative expressions of genes associated with stress response. Our results indicate that selection for traits of interests may be indirectly related to the significant lineage effect on growth in early stages of development. |
| 英文关键词 | Salvelinus fontinalis (Mitchill 1814); brook charr; selection; parental effects; temperature; challenge tests |
| 语种 | 英语 |
| WOS研究方向 | Zoology |
| WOS类目 | Zoology |
| WOS记录号 | WOS:001155690000001 |
| 来源期刊 | CANADIAN JOURNAL OF ZOOLOGY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/288335 |
| 作者单位 | University of Quebec; Universite du Quebec a Rimouski; Laval University; University of Sherbrooke |
| 推荐引用方式 GB/T 7714 | . Selection effects on early life history traits and thermal resistance in brook charr Salvelinus fontinalis[J],2024,102(5). |
| APA | (2024).Selection effects on early life history traits and thermal resistance in brook charr Salvelinus fontinalis.CANADIAN JOURNAL OF ZOOLOGY,102(5). |
| MLA | "Selection effects on early life history traits and thermal resistance in brook charr Salvelinus fontinalis".CANADIAN JOURNAL OF ZOOLOGY 102.5(2024). |
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