How to better conserve with genetic data: origin and population structure of Brazilian locally adapted hair sheep (Ovis aries) breeds
Paim, T. P.; Paiva, S. R.; Martins de Toledo, N.; Yamaghishi, M. B.; Carneiro, P. L. S.; Faco, O.; Mello de Araujo, A.; Azevedo, H. C.; Caetano, A. R.; McManus, C.
Show abstract
Brazilian hair sheep constitute a genetic diversity hotspot of sheep breeds. These locally adapted genetic resources developed in harsh environments of the Brazilian Northwest (semi-arid) and maintained important traits for this region, such as parasite resistance, heat tolerance and high pelt quality. Genotypes (50K SNP chip) from seven Brazilian sheep breeds (5 hair and 2 coarse wool types) and 87 worldwide breeds were used to verify population structure, admixture and genetic diversity, using PCA and ADMIXTURE analyses. We constructed a phylogenetic tree and evaluated migration events between genetic groups using TREEMIX software. Brazilian Somali, a fat-tailed breed, was the unique breed with high relationship with East African breeds and formed a distinct cluster from other Brazilian breeds. This breed seems to contribute to formation of Santa Ines, Morada Nova and Brazilian Fat-tail breeds. Brazilian Blackbelly had a clear relationship with Barbados Blackbelly, which appeared as another group. Other Brazilian breeds seem to form a further genetic group with some recent admixtures. Morada Nova remained as a separate group, not showing a strong relationship with European or African breeds, only revealing a migration event from Sidaoun, an Algerian hair breed. Brazilian Fat-tail and Morada Nova share a common ancestor, but the first received introgressions from Brazilian Somali and Afrikaner breeds, explaining the fat-tail phenotype. Santa Ines received strong contribution from Bergamasca and had an admixed origin with recent introgressions from other breeds, mainly from Suffolk animals. In conclusion, Brazilian Somali and Brazilian Fat-tail are the most endangered sheep genetic resources in Brazil.
Matching journals
The top 1 journal accounts for 50% of the predicted probability mass.
Similar papers in this journal
- Development of selection strategies for genetic improvement in production traits of Mecheri sheep based on a Bayesian multi trait evaluation 95%
- Population estimation study reveals staggeringly high number of cattle on the streets of urban Raipur, Chhattisgarh, India 95%
- Insights on the historical biogeography of Philippine native pigs and its relationship with Continental domestic and wild boars 94%
Similar papers in this journal
- BoLA-DRB3 gene haplotypes show divergence in native Sudanese cattle from Taurine and Zebu breeds 95%
- Developing snakebite risk model using venomous snake habitat suitability as an indicating factor: An application of species distribution models in public health research 93%
- Increased vulnerability to SARS-CoV-2 infection among indigenous peoples living in the urban area of Manaus 93%
Similar papers in this journal
- Mitogenomic Phylogeny of Callithrix with Special Focus on Human Transferred Taxa 92%
- Precise annotation of tick mitochondrial genomes reveals multiple STR variation and one transposon-like element 91%
- Genome-wide analyses reveal a strong association between LEPR gene variants and body fat reserves in ewes 91%
Similar papers in this journal
- Protein interaction analysis of Plasmodium falciparum circumsporozoite protein variants with human immunoproteins explains RTS,S vaccine efficacy in Ghana 92%
- Genetic association of TMPRSS2 rs2070788 polymorphism with COVID-19 Case Fatality Rate among Indian populations 91%
- Wing Geometry and Genetic Analyses Reveal Contrasting Spatial Structures between Male and Female Aedes aegypti Populations in Metropolitan Manila, Philippines 90%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.