Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis

Detalhes bibliográficos
Autor(a) principal: Carolino, Nuno
Data de Publicação: 2020
Outros Autores: Vitorino, Andreia, Carolino, Inês, Pais, J., Henriques, N., Silveira, M., Vicente, António
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.15/3092
Resumo: The Mertolenga beef cattle, currently with 27,000 breeding females in Portugal, is the largest Portuguese native breed, despite some variation in the breeding stock over the last years. The purpose of this study was to estimate parameters related to the population structure and genetic diversity and to investigate the major factors affecting genetic erosion in the breed, based on the pedigree herdbook information collected since the 1950s, including records on 221,567 animals from 425 herds. The mean generation intervals were 6.4 years for sires and 7.1 years for dams, respectively. The rate of inbreeding per year was 0.183% ± 0.020% and the correspondent effective population size was 38.83. In the reference population (35,017 calves born between 2015 and 2019), the average inbreeding and relatedness were 8.82% ± 10% and 2.05% ± 1.26%, respectively. The mean relationship among animals from the same and from different herds was 29.25% ± 9.36% and 1.87% ± 1.53%, respectively. The estimates for the effective number of founders, ancestors, founding herds and herds supplying sires were 87.9, 59.4, 21.4 and 73.5, respectively. Although the situation of the Mertolenga breed is not alarming, these results indicate the need to adopt measures to maintain the genetic variability of the population
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spelling Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysisnative cattleinbreedingfoundersancestorspopulation structureBovinaeRaça mertolengaVariação genéticaEstrutura da populaçãoThe Mertolenga beef cattle, currently with 27,000 breeding females in Portugal, is the largest Portuguese native breed, despite some variation in the breeding stock over the last years. The purpose of this study was to estimate parameters related to the population structure and genetic diversity and to investigate the major factors affecting genetic erosion in the breed, based on the pedigree herdbook information collected since the 1950s, including records on 221,567 animals from 425 herds. The mean generation intervals were 6.4 years for sires and 7.1 years for dams, respectively. The rate of inbreeding per year was 0.183% ± 0.020% and the correspondent effective population size was 38.83. In the reference population (35,017 calves born between 2015 and 2019), the average inbreeding and relatedness were 8.82% ± 10% and 2.05% ± 1.26%, respectively. The mean relationship among animals from the same and from different herds was 29.25% ± 9.36% and 1.87% ± 1.53%, respectively. The estimates for the effective number of founders, ancestors, founding herds and herds supplying sires were 87.9, 59.4, 21.4 and 73.5, respectively. Although the situation of the Mertolenga breed is not alarming, these results indicate the need to adopt measures to maintain the genetic variability of the populationMDPI AGRepositório Científico do Instituto Politécnico de SantarémCarolino, NunoVitorino, AndreiaCarolino, InêsPais, J.Henriques, N.Silveira, M.Vicente, António2020-11-03T17:22:25Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.15/3092engCarolino, N. ; Vitorino, A.; Carolino, I.; Pais, J.; Henriques, N.; Silveira, M. & Vicente, A. (2020). Genetic diversity in the Portuguese Mertolenga cattle breed assessed by pedigree analysis. Animals 10(11), 1990; https://doi.org/10.3390/ani10111990. https://ww.mdpi.com/2076-2615/10/11/1990doi:10.3390/ani10111990.2076-2615info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-21T07:34:39Zoai:repositorio.ipsantarem.pt:10400.15/3092Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:54:58.797991Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis
title Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis
spellingShingle Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis
Carolino, Nuno
native cattle
inbreeding
founders
ancestors
population structure
Bovinae
Raça mertolenga
Variação genética
Estrutura da população
title_short Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis
title_full Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis
title_fullStr Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis
title_full_unstemmed Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis
title_sort Genetic diversity in the portuguese Mertolenga cattle breed assessed by pedigree analysis
author Carolino, Nuno
author_facet Carolino, Nuno
Vitorino, Andreia
Carolino, Inês
Pais, J.
Henriques, N.
Silveira, M.
Vicente, António
author_role author
author2 Vitorino, Andreia
Carolino, Inês
Pais, J.
Henriques, N.
Silveira, M.
Vicente, António
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico de Santarém
dc.contributor.author.fl_str_mv Carolino, Nuno
Vitorino, Andreia
Carolino, Inês
Pais, J.
Henriques, N.
Silveira, M.
Vicente, António
dc.subject.por.fl_str_mv native cattle
inbreeding
founders
ancestors
population structure
Bovinae
Raça mertolenga
Variação genética
Estrutura da população
topic native cattle
inbreeding
founders
ancestors
population structure
Bovinae
Raça mertolenga
Variação genética
Estrutura da população
description The Mertolenga beef cattle, currently with 27,000 breeding females in Portugal, is the largest Portuguese native breed, despite some variation in the breeding stock over the last years. The purpose of this study was to estimate parameters related to the population structure and genetic diversity and to investigate the major factors affecting genetic erosion in the breed, based on the pedigree herdbook information collected since the 1950s, including records on 221,567 animals from 425 herds. The mean generation intervals were 6.4 years for sires and 7.1 years for dams, respectively. The rate of inbreeding per year was 0.183% ± 0.020% and the correspondent effective population size was 38.83. In the reference population (35,017 calves born between 2015 and 2019), the average inbreeding and relatedness were 8.82% ± 10% and 2.05% ± 1.26%, respectively. The mean relationship among animals from the same and from different herds was 29.25% ± 9.36% and 1.87% ± 1.53%, respectively. The estimates for the effective number of founders, ancestors, founding herds and herds supplying sires were 87.9, 59.4, 21.4 and 73.5, respectively. Although the situation of the Mertolenga breed is not alarming, these results indicate the need to adopt measures to maintain the genetic variability of the population
publishDate 2020
dc.date.none.fl_str_mv 2020-11-03T17:22:25Z
2020
2020-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.15/3092
url http://hdl.handle.net/10400.15/3092
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Carolino, N. ; Vitorino, A.; Carolino, I.; Pais, J.; Henriques, N.; Silveira, M. & Vicente, A. (2020). Genetic diversity in the Portuguese Mertolenga cattle breed assessed by pedigree analysis. Animals 10(11), 1990; https://doi.org/10.3390/ani10111990. https://ww.mdpi.com/2076-2615/10/11/1990
doi:10.3390/ani10111990.
2076-2615
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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