Pubblicazione scientifica

Multiple Selection Signatures in Farmed Atlantic Salmon Adapted to Different Environments Across Hemispheres

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità
trasformazione e commercializzazione

RIASSUNTO

Domestication of Atlantic salmon started approximately 40 years ago, using artificial selection through genetic improvement programs. Selection is likely to have imposed distinctive signatures on the salmon genome, which are often characterized by high genetic differentiation across population and/or reduction in genetic diversity in regions associated to traits under selection. The identification of such selection signatures may give insights into the candidate genomic regions of biological and commercial interest. Here, we used three complementary statistics to detect selection signatures, two haplotype-based (iHS and XP-EHH), and one FST-based method (BayeScan) among four populations of Atlantic salmon with a common genetic origin. Several regions were identified for these techniques that harbored genes, such as kind1 and chp2, which have been associated with growth-related traits or the kcnb2 gene related to immune system in Atlantic salmon, making them particularly relevant in the context of aquaculture. Our results provide candidate genes to inform the evolutionary and biological mechanisms controlling complex selected traits in Atlantic salmon.

DATA

Data di pubblicazione: 01/10/2019

AUTORI

LOPEZ MARIA EUGENIA
LINDEROTH TYLER
NORRIS ASHIE
LHORENTE JEAN PAUL
NEIRA ROBERTO
YANEZ JOSE MANUEL

ENTE DI AFFERENZA

FACULTAD DE CIENCIAS VETERINARIAS Y PECUARIAS UNIV CHILE SANTIAGO CHILE
DEPT ANIMAL BREEDING & GENETICS SWEDISH UNIV AGRICULTURAL SCIENCES UPPSALA SWEDEN
DEPT INTEGRATIVE BIOLOGY UNIV CALIFORNIA BERKELEY CA US
MARINE HARVEST KINDRUM FANAD C DONEGAL IRELAND
BENCHMARK GENETICS CHILE PUERTO MONTT CHILE
FACULTAD DE CIENCIAS AGRONOMICAS UNIV CHILE SANTIAGO CHILE
NUCLEO MILENIO INVASAL CONCEPCION CHILE

RIVISTA

Frontiers in Genetics, 10, 901

IMPACT FACTOR

3,360

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