Four single nucleotide polymorphisms (SNPs) are associated with resistance and resilience to Haemonchus contortus in Brazilian Morada Nova sheep

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorRua Miguel Petroni-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorHaehling, Marei B. [UNESP]-
Autor(es): dc.creatorCruvinel, Giovanna G.-
Autor(es): dc.creatorToscano, João H.B. [UNESP]-
Autor(es): dc.creatorGiraldelo, Luciana A.-
Autor(es): dc.creatorSantos, Isabella B. [UNESP]-
Autor(es): dc.creatorEsteves, Sergio N.-
Autor(es): dc.creatorBenavides, Magda V.-
Autor(es): dc.creatorBarioni Júnior, Waldomiro-
Autor(es): dc.creatorNiciura, Simone C.M.-
Autor(es): dc.creatorChagas, Ana Carolina. S.-
Data de aceite: dc.date.accessioned2022-02-22T00:24:54Z-
Data de disponibilização: dc.date.available2022-02-22T00:24:54Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.vetpar.2020.109053-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198557-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198557-
Descrição: dc.descriptionGastrointestinal nematodes are a major constraint in sheep production. Breeding for resistance has proven to be an effective and feasible approach to address this problem. The use and investigation of genetic markers for resistance traits could accelerate genetic progress and lead to a better understanding of underlying molecular mechanisms. Thus, the aim of this study was to evaluate if five single nucleotide polymorphisms SNPs OAR2_14765360, OAR6_81718546, OAR11_62887032, OAR12_69606944 and OAR15_59871543 are associated with resistance and resilience traits in a flock of the Morada Nova sheep breed. Lambs were submitted to two consecutive parasite challenges by oral infection with 4000 infective larvae L3) of Haemonchus contortus. Fecal egg counts (FEC), packed cell volume (PVC) and body weight were measured every one or two weeks for 42 days in each trial. DNA samples from 287 lambs, 131 ewes and 4 rams were amplified by ARMS-PCR or PCR-RFLP and genotypes were determined. Analysis of variance (ANOVA) was used for association analyses between genotypes and phenotypes. In case of significant association, the allele substitution effect was calculated based on a linear model. OAR2_14765360 and OAR12_69606944 were associated with FEC, and OAR12_69606944 also had significant effects on PCV and weight gain, showing favourable associations of the CC genotype with all evaluated traits. Both OAR6_81718546 and OAR11_62887032 were associated with weight gain, and OAR6_81718546 had an additional effect on PCV. OAR15_59871543 was not polymorphic in the population. OAR6_81718546 and OAR12_69606944 presented significant allele substitution effects of -1.06 ± 0.52 kg for the T allele on final body weight and 0.74 ± 0.32 for the C allele in PCV of the same sampling date, respectively. This is the first report of SNPs associated with gastrointestinal nematode resistance in this sheep breed. Our findings support the existence of quantitatice trait loci (QTL) for resistance and resilience in linkage disequilibrium with the polymorphic SNPs and suggest their future use for explorations of these traits in Morada Nova sheep.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n-
Descrição: dc.descriptionCentro Universitário Central Paulista (UNICEP) Rua Miguel Petroni, 5111-
Descrição: dc.descriptionEmbrapa Pecuária Sudeste, Rod. Washington Luiz, Km 234 - Fazenda Canchim-
Descrição: dc.descriptionEmbrapa Pecuária Sul, BR 153 Km 633, Vila Industrial-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n-
Descrição: dc.descriptionFAPESP: 2017/00373-2-
Descrição: dc.descriptionFAPESP: 2017/24289-0-
Idioma: dc.languageen-
Relação: dc.relationVeterinary Parasitology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGenetic markers-
Palavras-chave: dc.subjectHost resistance-
Palavras-chave: dc.subjectMorada Nova sheep-
Palavras-chave: dc.subjectParasite challenge-
Título: dc.titleFour single nucleotide polymorphisms (SNPs) are associated with resistance and resilience to Haemonchus contortus in Brazilian Morada Nova sheep-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.