Autor: |
Daniel Gaspar, Catarina Ginja, Nuno Carolino, Célia Leão, Helena Monteiro, Lino Tábuas, Sandra Branco, Ludovina Padre, Pedro Caetano, Ricardo Romão, Claudino Matos, António Marcos Ramos, Elisa Bettencourt, Ana Usié |
Jazyk: |
angličtina |
Rok vydání: |
2024 |
Předmět: |
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Zdroj: |
BMC Genomics, Vol 25, Iss 1, Pp 1-11 (2024) |
Druh dokumentu: |
article |
ISSN: |
1471-2164 |
DOI: |
10.1186/s12864-023-09844-x |
Popis: |
Abstract Background Ovine footrot caused by Dichelobacter nodosus (D. nodosus) is a contagious disease with serious economic and welfare impacts in sheep production systems worldwide. A better understanding of the host genetic architecture regarding footrot resistance/susceptibility is crucial to develop disease control strategies that efficiently reduce infection and its severity. A genome-wide association study was performed using a customized SNP array (47,779 SNPs in total) to identify genetic variants associated to footrot resistance/susceptibility in two Portuguese native breeds, i.e. Merino Branco and Merino Preto, and a population of crossbred animals. A cohort of 1375 sheep sampled across 17 flocks, located in the Alentejo region (southern Portugal), was included in the analyses. Results Phenotypes were scored from 0 (healthy) to 5 (severe footrot) based on visual inspection of feet lesions, following the Modified Egerton System. Using a linear mixed model approach, three SNPs located on chromosome 24 reached genome-wide significance after a Bonferroni correction (p |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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