Single marker assisted selection in Brazilian Morada Nova hair sheep community-based breeding program.

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dc.contributorThaísa Sant'Anna Lacerda, Universidade de Brasília (UnB) - Brasília, DF, Brazil; ALEXANDRE RODRIGUES CAETANO, Cenargen; OLIVARDO FACO, CNPC; Concepta M. McManus, Universidade de Brasília (UnB) - Brasília, DF, Brazil; RAIMUNDO NONATO BRAGA LOBO, CNPC; KLEIBE DE MORAES SILVA, CNPC; SAMUEL REZENDE PAIVA, SRI.
dc.creatorLACERDA, T. S.
dc.creatorCAETANO, A. R.
dc.creatorFACO, O.
dc.creatorFARIA, D. A. de
dc.creatorMcMANUS, C. M.
dc.creatorLOBO, R. N. B.
dc.creatorSILVA, K. de M.
dc.creatorPAIVA, S. R.
dc.date2018-07-21T01:01:02Z
dc.date2018-07-21T01:01:02Z
dc.date2016-10-06
dc.date2016
dc.date2018-07-21T01:01:02Z
dc.date.accessioned2026-07-07T11:51:23Z
dc.descriptionAbstract: Morada Nova hair sheep show traits desirable for lamb production especially in extensive production systems in Northeastern Brazil, representing an important genetic resource for producing lamb in semi-arid climates in Brazil and elsewhere. Performance testing has been carried out annually with this breed since 2008. In the present study, Morada Nova sheep from two Brazilian states: Ceará (140 animals) and São Paulo (112 animals) were genotyped for a SNP associated with litter size, which is almost only found in Brazilian locally adapted sheep breeds (FecGE). The total observed frequency of FecGE was 0.65, while an increased number of observed heterozygotes was also observed (?2 = 7.274, p< 0.01). No significant FecGE allele frequency differences were observed (p = 0.3708) in 139 performance-tested rams classified as Elite/Superior or Regular/Inferior in the states of Ceará and São Paulo. Considering that litter size has been shown to positively affect farm profitability in medium to high input systems, we suggest that inclusion of FecGE genotyping information in future selection indexes estimated with basis on performance test data, fine-tuned to regional production systems may contribute to increase profitability gains observed in the Morada Nova community-based breeding program.
dc.identifierSmall Ruminant Research, v. 139, p. 15-19, June, 2016.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1054185
dc.identifierhttp://dx.doi.org/10.1016/j.smallrumres.2016.04.009
dc.identifier.urihttp://hdl.handle.net/123456789/515173
dc.languagepor
dc.rightsopenAccess
dc.subjectRaça Morada nova
dc.subjectTeste de desempenho
dc.subjectGDF9
dc.subjectRecurso genético animal
dc.subjectPerformance testing
dc.subjectOvino
dc.subjectGenética animal
dc.subjectAnimal genetic resources
dc.subjectSheep
dc.subjectReproductive performance
dc.titleSingle marker assisted selection in Brazilian Morada Nova hair sheep community-based breeding program.
dc.typeArtigo de periódico

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