Transcriptomic evidences of local thermal adaptation for the native fish Colossoma macropomum (Cuvier, 1818)
| Autor: | Jose Deney A. Araujo, Carlos Henrique Santos, Luciana Mara Fé-Gonçalves, Vera Almeida-Val, AlessanRSS Reis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Tambaqui Fish farming Population tambaqui Zoology population QH426-470 01 natural sciences Transcriptome 03 medical and health sciences Aquaculture thermal adaptation Genetics education Molecular Biology Gene education.field_of_study biology business.industry temperature biology.organism_classification 030104 developmental biology Freshwater fish Adaptation business Animal Genetics 010606 plant biology & botany |
| Zdroj: | Genetics and Molecular Biology v.43 n.3 2020 Genetics and Molecular Biology Sociedade Brasileira de Genética (SBG) instacron:SBG Genetics and Molecular Biology, Vol 43, Iss 3 (2020) Genetics and Molecular Biology, Volume: 43, Issue: 3, Article number: e20190377, Published: 11 SEP 2020 |
| Popis: | Brazil has five climatically distinct regions, with an annual average temperature difference up to 14 ºC between the northern and southern extremes. Environmental variation of this magnitude can lead to new genetic patterns among farmed fish populations. Genetically differentiated populations of tambaqui (Colossoma macropomum Cuvier, 1818), an important freshwater fish for Brazilian continental aquaculture, may be associated with regional adaptation. In this study, we selected tambaquis raised in two thermally distinct regions, belonging to different latitudes, to test this hypothesis. De novo transcriptome analysis was performed to compare the significant differences of genes expressed in the liver of juvenile tambaqui from a northern population (Balbina) and a southeastern population (Brumado). In total, 2,410 genes were differentially expressed (1,196 in Balbina and 1,214 in Brumado). Many of the genes are involved in a multitude of biological functions such as biosynthetic processes, homeostasis, biorhythm, immunity, cell signaling, ribosome biogenesis, modification of proteins, intracellular transport, structure/cytoskeleton, and catalytic activity. Enrichment analysis based on biological networks showed a different protein interaction profile for each population, whose encoding genes may play potential functions in local thermal adaptation of fish to their respective farming environments. |
| Databáze: | OpenAIRE |
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