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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
04/10/2011 |
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Data da última atualização: |
16/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PAIVA, S. R.; FACO, O.; FARIA, D. A.; LACERDA, T.; BARRETO, G. B. B.; CARNEIRO, P. L. S.; LOBO, R. N. B. |
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Afiliação: |
SAMUEL REZENDE PAIVA, CENARGEN; OLIVARDO FACO, CNPC; DANIELLE A. FARIA; THAÍSA LACERDA; GABRIEL B. BARRETO, Faculdades Integradas, UPIS, Brasília, DF.; PAULO L. S. CARNEIRO, Universidade Estadual do Sudoeste da Bahia, Jequié, BA.; RAIMUNDO NONATO BRAGA LOBO, CNPC. |
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Título: |
Molecular and pedigree analysis applied to conservation of animal genetic resources: the case of Brazilian Somali hair sheep. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Tropical Animal Health and Production, v. 43, n. 7, p. 1449-1457, Oct., 2011. |
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DOI: |
10.1007/s11250-011-9873-6 |
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Idioma: |
Inglês |
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Conteúdo: |
The first registers of Somali sheep in Brazil are from the beginning of the 1900s. This breed, adapted to the dry climate and scarce food supply, is restricted in the northeast region of the country. Molecular marker technolo-gies, especially those based on genotyping microsatellite and mtDNA loci, can be used in conjunction with breeding (pedigree analysis) and consequently the maintenance of genetic variation in herds. Animals from the Brazilian Somali Conservation Nuclei from Embrapa Sheep and Goats in Ceará State were used to validate genetic monitoring by traditional pedigree methods and molecular markers. Nineteen micro-satellite markers and 404 base pairs from the control region of mtDNA were used. For total herd diversity, an average 5.32 alleles were found, with expected heterozygosity of 0.5896, observed heterozygosity of 0.6451, 0.4126 for molecular coancestrality, and coefficient of inbreeding (FIS)was ?0.095. Comparing molecular coancestrality means over the years, there was a consistent increase in this parameter within the herd, increasing from 0.4157 to 0.4769 in 2 years (approx. 12% variation). Sixteen mtDNA haplotypes were identified. Inbreeding and other estimates from genealogical analyses confirm the results from molecular markers. From these results, it is possible to state that microsatellites are useful tools in genetic management of herds, especially when routine herd recording is not carried out, or there were gaps in recent generations. As well as pedigree control, genetic diversity can be optimized. Based on the results, and despite herd recording in the herd of Brazilian Somali of Embrapa Sheep and Goats, additional management measures need to be carried out in this herd to reduce inbreeding and optimize genetic variation. MenosThe first registers of Somali sheep in Brazil are from the beginning of the 1900s. This breed, adapted to the dry climate and scarce food supply, is restricted in the northeast region of the country. Molecular marker technolo-gies, especially those based on genotyping microsatellite and mtDNA loci, can be used in conjunction with breeding (pedigree analysis) and consequently the maintenance of genetic variation in herds. Animals from the Brazilian Somali Conservation Nuclei from Embrapa Sheep and Goats in Ceará State were used to validate genetic monitoring by traditional pedigree methods and molecular markers. Nineteen micro-satellite markers and 404 base pairs from the control region of mtDNA were used. For total herd diversity, an average 5.32 alleles were found, with expected heterozygosity of 0.5896, observed heterozygosity of 0.6451, 0.4126 for molecular coancestrality, and coefficient of inbreeding (FIS)was ?0.095. Comparing molecular coancestrality means over the years, there was a consistent increase in this parameter within the herd, increasing from 0.4157 to 0.4769 in 2 years (approx. 12% variation). Sixteen mtDNA haplotypes were identified. Inbreeding and other estimates from genealogical analyses confirm the results from molecular markers. From these results, it is possible to state that microsatellites are useful tools in genetic management of herds, especially when routine herd recording is not carried out, or there were gaps in recent generations. As well as ... Mostrar Tudo |
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Palavras-Chave: |
Ceará; D-loop; Genetic management; Microsatelite; Molecular markers; Raça Somalis Brasileira; Recurso genético animal. |
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Thesagro: |
Endogamia; Genética animal; Manejo; Marcador molecular; Ovino; Variação genética. |
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Thesaurus Nal: |
Animal genetics; Brazil; Sheep. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42786/1/API-Molecular.pdf
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Marc: |
LEADER 02939naa a2200397 a 4500
001 1902648
005 2023-02-16
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1007/s11250-011-9873-6$2DOI
100 1 $aPAIVA, S. R.
245 $aMolecular and pedigree analysis applied to conservation of animal genetic resources$bthe case of Brazilian Somali hair sheep.$h[electronic resource]
260 $c2011
520 $aThe first registers of Somali sheep in Brazil are from the beginning of the 1900s. This breed, adapted to the dry climate and scarce food supply, is restricted in the northeast region of the country. Molecular marker technolo-gies, especially those based on genotyping microsatellite and mtDNA loci, can be used in conjunction with breeding (pedigree analysis) and consequently the maintenance of genetic variation in herds. Animals from the Brazilian Somali Conservation Nuclei from Embrapa Sheep and Goats in Ceará State were used to validate genetic monitoring by traditional pedigree methods and molecular markers. Nineteen micro-satellite markers and 404 base pairs from the control region of mtDNA were used. For total herd diversity, an average 5.32 alleles were found, with expected heterozygosity of 0.5896, observed heterozygosity of 0.6451, 0.4126 for molecular coancestrality, and coefficient of inbreeding (FIS)was ?0.095. Comparing molecular coancestrality means over the years, there was a consistent increase in this parameter within the herd, increasing from 0.4157 to 0.4769 in 2 years (approx. 12% variation). Sixteen mtDNA haplotypes were identified. Inbreeding and other estimates from genealogical analyses confirm the results from molecular markers. From these results, it is possible to state that microsatellites are useful tools in genetic management of herds, especially when routine herd recording is not carried out, or there were gaps in recent generations. As well as pedigree control, genetic diversity can be optimized. Based on the results, and despite herd recording in the herd of Brazilian Somali of Embrapa Sheep and Goats, additional management measures need to be carried out in this herd to reduce inbreeding and optimize genetic variation.
650 $aAnimal genetics
650 $aBrazil
650 $aSheep
650 $aEndogamia
650 $aGenética animal
650 $aManejo
650 $aMarcador molecular
650 $aOvino
650 $aVariação genética
653 $aCeará
653 $aD-loop
653 $aGenetic management
653 $aMicrosatelite
653 $aMolecular markers
653 $aRaça Somalis Brasileira
653 $aRecurso genético animal
700 1 $aFACO, O.
700 1 $aFARIA, D. A.
700 1 $aLACERDA, T.
700 1 $aBARRETO, G. B. B.
700 1 $aCARNEIRO, P. L. S.
700 1 $aLOBO, R. N. B.
773 $tTropical Animal Health and Production$gv. 43, n. 7, p. 1449-1457, Oct., 2011.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
05/01/2010 |
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Data da última atualização: |
18/11/2013 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SANTOS, V. V. B. M.; JORGE, L. A. de C. |
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Afiliação: |
LUCIO ANDRE DE CASTRO JORGE, CNPDIA. |
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Título: |
Implementação de mapas auto-organizados de Kohonen para segmentação automática de imgens hiperespectrais aplicada no estudo do Greening. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: JORNADA CIENTÍFICA-EMBRAPA SÃO CARLOS, 2009, São Carlos, SP. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação Agropecuária, 2009. p. 80 (Embrapa Pecuária Sudeste. Documentos, 90) |
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Idioma: |
Português |
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Palavras-Chave: |
JORNADA CIENTÍFICA. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/92635/1/Proci-09.00323.pdf
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Marc: |
LEADER 00622nam a2200121 a 4500
001 1579451
005 2013-11-18
008 2009 bl uuuu u00u1 u #d
100 1 $aSANTOS, V. V. B. M.
245 $aImplementação de mapas auto-organizados de Kohonen para segmentação automática de imgens hiperespectrais aplicada no estudo do Greening.
260 $aIn: JORNADA CIENTÍFICA-EMBRAPA SÃO CARLOS, 2009, São Carlos, SP. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação Agropecuária, 2009. p. 80 (Embrapa Pecuária Sudeste. Documentos, 90)$c2009
653 $aJORNADA CIENTÍFICA
700 1 $aJORGE, L. A. de C.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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