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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Suínos e Aves. |
Data corrente: |
20/04/2016 |
Data da última atualização: |
25/04/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ZANELLA, R.; PEIXOTO, J. de O.; CARDOSO, F. F.; CARDOSO, L. L.; BIEGELMEYER, P.; CANTAO, M. E.; OTAVIANO, A.; FREITAS, M. S.; CAETANO, A. R.; LEDUR, M. C. |
Afiliação: |
RICARDO ZANELLA, CNPSA; JANE DE OLIVEIRA PEIXOTO, CNPSA; FERNANDO FLORES CARDOSO, CPPSUL; LEANDRO L. CARDOSO; PATRÍCIA BIEGELMEYER, UFPEL; MAURICIO EGIDIO CANTAO, CNPSA; ANTONIO OTAVIANO, BRF/SA; MARCELO S. FREITAS, BRF/SA; ALEXANDRE RODRIGUES CAETANO, CENARGEN; MONICA CORREA LEDUR, CNPSA. |
Título: |
Genetic diversity analysis of two commercial breeds of pigs using genomic and pedigree data. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Genetics Selection Evolution, v. 48, n. 24, 30 Mar. 2016. |
DOI: |
10.1186/s12711-016-0203-3 |
Idioma: |
Inglês |
Conteúdo: |
Abstract Background: Genetic improvement in livestock populations can be achieved without significantly affecting genetic diversity if mating systems and selection decisions take genetic relationships among individuals into consideration. The objective of this study was to examine the genetic diversity of two commercial breeds of pigs. Genotypes from 1168 Landrace (LA) and 1094 Large White (LW) animals from a commercial breeding program in Brazil were obtained using the Illumina PorcineSNP60 Beadchip. Inbreeding estimates based on pedigree (Fx) and genomic information using runs of homozygosity (FROH) and the single nucleotide polymorphisms (SNP) by SNP inbreeding coefficient (FSNP) were obtained. Linkage disequilibrium (LD), correlation of linkage phase (r) and effective population size (Ne) were also estimated. Results: Estimates of inbreeding obtained with pedigree information were lower than those obtained with genomic data in both breeds. We observed that the extent of LD was slightly larger at shorter distances between SNPs in the LW population than in the LA population, which indicates that the LW population was derived from a smaller Ne. Estimates of Ne based on genomic data were equal to 53 and 40 for the current populations of LA and LW, respectively. The correlation of linkage phase between the two breeds was equal to 0.77 at distances up to 50 kb, which suggests that genome-wide association and selection should be performed within breed. Although selection intensities have been stronger in the LA breed than in the LW breed, levels of genomic and pedigree inbreeding were lower for the LA than for the LW breed. Conclusions: The use of genomic data to evaluate population diversity in livestock animals can provide new and more precise insights about the effects of intense selection for production traits. Resulting information and knowledge can be used to effectively increase response to selection by appropriately managing the rate of inbreeding, minimizing negative effects of inbreeding depression and therefore maintaining desirable levels of genetic diversity. MenosAbstract Background: Genetic improvement in livestock populations can be achieved without significantly affecting genetic diversity if mating systems and selection decisions take genetic relationships among individuals into consideration. The objective of this study was to examine the genetic diversity of two commercial breeds of pigs. Genotypes from 1168 Landrace (LA) and 1094 Large White (LW) animals from a commercial breeding program in Brazil were obtained using the Illumina PorcineSNP60 Beadchip. Inbreeding estimates based on pedigree (Fx) and genomic information using runs of homozygosity (FROH) and the single nucleotide polymorphisms (SNP) by SNP inbreeding coefficient (FSNP) were obtained. Linkage disequilibrium (LD), correlation of linkage phase (r) and effective population size (Ne) were also estimated. Results: Estimates of inbreeding obtained with pedigree information were lower than those obtained with genomic data in both breeds. We observed that the extent of LD was slightly larger at shorter distances between SNPs in the LW population than in the LA population, which indicates that the LW population was derived from a smaller Ne. Estimates of Ne based on genomic data were equal to 53 and 40 for the current populations of LA and LW, respectively. The correlation of linkage phase between the two breeds was equal to 0.77 at distances up to 50 kb, which suggests that genome-wide association and selection should be performed within breed. Although selection intens... Mostrar Tudo |
Palavras-Chave: |
Mlhoramento genético animal. |
Thesagro: |
Genética animal; Raça; Suíno. |
Thesaurus Nal: |
Animal breeding; Swine production. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/148369/1/12711-2016-Article-203.pdf
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Marc: |
LEADER 03012naa a2200313 a 4500 001 2054127 005 2024-04-25 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1186/s12711-016-0203-3$2DOI 100 1 $aZANELLA, R. 245 $aGenetic diversity analysis of two commercial breeds of pigs using genomic and pedigree data.$h[electronic resource] 260 $c2016 520 $aAbstract Background: Genetic improvement in livestock populations can be achieved without significantly affecting genetic diversity if mating systems and selection decisions take genetic relationships among individuals into consideration. The objective of this study was to examine the genetic diversity of two commercial breeds of pigs. Genotypes from 1168 Landrace (LA) and 1094 Large White (LW) animals from a commercial breeding program in Brazil were obtained using the Illumina PorcineSNP60 Beadchip. Inbreeding estimates based on pedigree (Fx) and genomic information using runs of homozygosity (FROH) and the single nucleotide polymorphisms (SNP) by SNP inbreeding coefficient (FSNP) were obtained. Linkage disequilibrium (LD), correlation of linkage phase (r) and effective population size (Ne) were also estimated. Results: Estimates of inbreeding obtained with pedigree information were lower than those obtained with genomic data in both breeds. We observed that the extent of LD was slightly larger at shorter distances between SNPs in the LW population than in the LA population, which indicates that the LW population was derived from a smaller Ne. Estimates of Ne based on genomic data were equal to 53 and 40 for the current populations of LA and LW, respectively. The correlation of linkage phase between the two breeds was equal to 0.77 at distances up to 50 kb, which suggests that genome-wide association and selection should be performed within breed. Although selection intensities have been stronger in the LA breed than in the LW breed, levels of genomic and pedigree inbreeding were lower for the LA than for the LW breed. Conclusions: The use of genomic data to evaluate population diversity in livestock animals can provide new and more precise insights about the effects of intense selection for production traits. Resulting information and knowledge can be used to effectively increase response to selection by appropriately managing the rate of inbreeding, minimizing negative effects of inbreeding depression and therefore maintaining desirable levels of genetic diversity. 650 $aAnimal breeding 650 $aSwine production 650 $aGenética animal 650 $aRaça 650 $aSuíno 653 $aMlhoramento genético animal 700 1 $aPEIXOTO, J. de O. 700 1 $aCARDOSO, F. F. 700 1 $aCARDOSO, L. L. 700 1 $aBIEGELMEYER, P. 700 1 $aCANTAO, M. E. 700 1 $aOTAVIANO, A. 700 1 $aFREITAS, M. S. 700 1 $aCAETANO, A. R. 700 1 $aLEDUR, M. C. 773 $tGenetics Selection Evolution$gv. 48, n. 24, 30 Mar. 2016.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
11/12/2015 |
Data da última atualização: |
11/12/2015 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
MOTA, A. P. S.; MELO, L. C.; WENDLAND, A.; PEREIRA, H. S.; SOUZA, T. L. P. O. |
Afiliação: |
ANA PAULA SIMPLICIO MOTA, mestranda UFG; LEONARDO CUNHA MELO, CNPAF; ADRIANE WENDLAND FERREIRA, CNPAF; HELTON SANTOS PEREIRA, CNPAF; THIAGO LIVIO PESSOA OLIV DE SOUZA, CNPAF. |
Título: |
Diversidade genética entre cultivares e linhagens elite de feijoeiro-comum com base na reação à doenças. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
In: SEMINÁRIO JOVENS TALENTOS, 8., 2014, Santo Antônio de Goiás. Coletânea dos resumos apresentados. Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2014. |
Páginas: |
p. 98. |
Série: |
(Embrapa Arroz e Feijão. Documentos, 306). |
Idioma: |
Português |
Conteúdo: |
Este trabalho objetivou estimar a diversidade genética entre 17 cultivares e linhagens elite de feijoeiro-comum desenvolvidas pela Embrapa e parceiros com base na reação a doenças (antracnose, ferrugem, mancha-angular, murcha-de-fusário e crestamento bacteriano-comum). |
Thesagro: |
Feijão; Melhoramento genético vegetal; Phaseolus vulgaris; Variação genética. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/135444/1/p98.pdf
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Marc: |
LEADER 01119nam a2200229 a 4500 001 2031466 005 2015-12-11 008 2014 bl uuuu u00u1 u #d 100 1 $aMOTA, A. P. S. 245 $aDiversidade genética entre cultivares e linhagens elite de feijoeiro-comum com base na reação à doenças.$h[electronic resource] 260 $aIn: SEMINÁRIO JOVENS TALENTOS, 8., 2014, Santo Antônio de Goiás. Coletânea dos resumos apresentados. Santo Antônio de Goiás: Embrapa Arroz e Feijão$c2014 300 $ap. 98. 490 $a(Embrapa Arroz e Feijão. Documentos, 306). 520 $aEste trabalho objetivou estimar a diversidade genética entre 17 cultivares e linhagens elite de feijoeiro-comum desenvolvidas pela Embrapa e parceiros com base na reação a doenças (antracnose, ferrugem, mancha-angular, murcha-de-fusário e crestamento bacteriano-comum). 650 $aFeijão 650 $aMelhoramento genético vegetal 650 $aPhaseolus vulgaris 650 $aVariação genética 700 1 $aMELO, L. C. 700 1 $aWENDLAND, A. 700 1 $aPEREIRA, H. S. 700 1 $aSOUZA, T. L. P. O.
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Embrapa Arroz e Feijão (CNPAF) |
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