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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Unidades Centrais. |
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Data corrente: |
16/04/2008 |
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Data da última atualização: |
17/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REIS, M. C.; SOUZA SOBRINHO, F.; RAMALHO, M. A. P.; FERREIRA, D. F.; LÉDO, F. J. S.; PEREIRA, A. V. |
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Afiliação: |
Matheus Costa dos Reis, UFLA; Fausto de Souza Sobrinho, Embrapa Gado de Leite; Magno Antônio Patto Ramalho, UFLA; Daniel Furtado Ferreira, UFLA; Francisco José da Silva Lédo, Embrapa Gado de Leite; Antônio Vander Pereira, Embrapa Gado de Leite. |
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Título: |
Allohexaploid pearl millet x elephantgrass population potential for a recurrent selection program. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v. 43, n. 2, p. 195-199, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - The objective of this work was to evaluate the potential of allohexaploid pearl millet x elephantgrass (HGL) population for a recurrent selection program through open-pollinated progenies. Seventy-eight progenies, one representative sample of the population, and two commercial cultivars, Pioneiro and Paraíso, were evaluated in a 9x9 triple lattice design, in two sites. Plant height and dry matter yield were evaluated in three and four cuts, respectively. For plant height, the 17 best progenies were similar to both commercial controls, while for dry matter yield they were higher than 'Paraíso' and lower than 'Pioneiro'. The correlation between progenies and cuts indicated that the fourth cut represents the mean of all cuts, and the possibility of using early selection. Heritability estimates considering cuts and sites were 56.9% for plant height and 58.8% for dry matter yield, and the expected response to selection was 23.4% for dry matter yield and 18.1% for plant height. These results demonstrate the promising HGL population potential for a recurrent selection program. RESUMO ? O objetivo deste trabalho foi avaliar o potencial para programa de seleção recorrente, em uma população alohexaplóide de milheto x capim-elefante (HGL), por meio de progênies de polinização aberta. Setenta e oito progênies, uma testemunha representativa da população e duas cultivares comerciais, a Pioneiro e a Paraíso, foram avaliadas no delineamento látice triplo 9x9, em dois locais. Os caracteres altura de plantas e produtividade de matéria seca foram avaliados por três e quatro cortes, respectivamente. Quanto à altura de plantas, a média das 17 melhores progênies foi similar às das testemunhas comerciais e, quanto à produtividade de matéria seca, foi maior do que a da 'Paraíso' e menor do que a da 'Pioneiro'. A correlação entre progênies e colheitas mostrou que a quarta colheita representa a média de todas as colheitas e a possibilidade de seleção precoce. As estimativas de herdabilidade na média das colheitas e locais foram de 56,9% para altura de plantas e de 58,8% para produtividade de matéria seca, e a reposta esperada com a seleção foi de 23,4% para produtividade de matéria seca e 18,1% para altura de plantas. Esses resultados demonstram o potencial promissor da população HGL para programa de seleção recorrente MenosABSTRACT - The objective of this work was to evaluate the potential of allohexaploid pearl millet x elephantgrass (HGL) population for a recurrent selection program through open-pollinated progenies. Seventy-eight progenies, one representative sample of the population, and two commercial cultivars, Pioneiro and Paraíso, were evaluated in a 9x9 triple lattice design, in two sites. Plant height and dry matter yield were evaluated in three and four cuts, respectively. For plant height, the 17 best progenies were similar to both commercial controls, while for dry matter yield they were higher than 'Paraíso' and lower than 'Pioneiro'. The correlation between progenies and cuts indicated that the fourth cut represents the mean of all cuts, and the possibility of using early selection. Heritability estimates considering cuts and sites were 56.9% for plant height and 58.8% for dry matter yield, and the expected response to selection was 23.4% for dry matter yield and 18.1% for plant height. These results demonstrate the promising HGL population potential for a recurrent selection program. RESUMO ? O objetivo deste trabalho foi avaliar o potencial para programa de seleção recorrente, em uma população alohexaplóide de milheto x capim-elefante (HGL), por meio de progênies de polinização aberta. Setenta e oito progênies, uma testemunha representativa da população e duas cultivares comerciais, a Pioneiro e a Paraíso, foram avaliadas no delineamento látice triplo 9x9, em dois locais. Os c... Mostrar Tudo |
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Palavras-Chave: |
herdabilidade; látice de parcelas subdividas; Látice de parcelas subdivididas; response to selection; resposta à seleção; split-plot lattice design. |
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Thesaurus Nal: |
heritability; Pennisetum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/42524/1/43n02a06.pdf
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Marc: |
LEADER 03244naa a2200277 a 4500
001 1596313
005 2022-08-17
008 2008 bl uuuu u00u1 u #d
100 1 $aREIS, M. C.
245 $aAllohexaploid pearl millet x elephantgrass population potential for a recurrent selection program.
260 $c2008
520 $aABSTRACT - The objective of this work was to evaluate the potential of allohexaploid pearl millet x elephantgrass (HGL) population for a recurrent selection program through open-pollinated progenies. Seventy-eight progenies, one representative sample of the population, and two commercial cultivars, Pioneiro and Paraíso, were evaluated in a 9x9 triple lattice design, in two sites. Plant height and dry matter yield were evaluated in three and four cuts, respectively. For plant height, the 17 best progenies were similar to both commercial controls, while for dry matter yield they were higher than 'Paraíso' and lower than 'Pioneiro'. The correlation between progenies and cuts indicated that the fourth cut represents the mean of all cuts, and the possibility of using early selection. Heritability estimates considering cuts and sites were 56.9% for plant height and 58.8% for dry matter yield, and the expected response to selection was 23.4% for dry matter yield and 18.1% for plant height. These results demonstrate the promising HGL population potential for a recurrent selection program. RESUMO ? O objetivo deste trabalho foi avaliar o potencial para programa de seleção recorrente, em uma população alohexaplóide de milheto x capim-elefante (HGL), por meio de progênies de polinização aberta. Setenta e oito progênies, uma testemunha representativa da população e duas cultivares comerciais, a Pioneiro e a Paraíso, foram avaliadas no delineamento látice triplo 9x9, em dois locais. Os caracteres altura de plantas e produtividade de matéria seca foram avaliados por três e quatro cortes, respectivamente. Quanto à altura de plantas, a média das 17 melhores progênies foi similar às das testemunhas comerciais e, quanto à produtividade de matéria seca, foi maior do que a da 'Paraíso' e menor do que a da 'Pioneiro'. A correlação entre progênies e colheitas mostrou que a quarta colheita representa a média de todas as colheitas e a possibilidade de seleção precoce. As estimativas de herdabilidade na média das colheitas e locais foram de 56,9% para altura de plantas e de 58,8% para produtividade de matéria seca, e a reposta esperada com a seleção foi de 23,4% para produtividade de matéria seca e 18,1% para altura de plantas. Esses resultados demonstram o potencial promissor da população HGL para programa de seleção recorrente
650 $aheritability
650 $aPennisetum
653 $aherdabilidade
653 $alátice de parcelas subdividas
653 $aLátice de parcelas subdivididas
653 $aresponse to selection
653 $aresposta à seleção
653 $asplit-plot lattice design
700 1 $aSOUZA SOBRINHO, F.
700 1 $aRAMALHO, M. A. P.
700 1 $aFERREIRA, D. F.
700 1 $aLÉDO, F. J. S.
700 1 $aPEREIRA, A. V.
773 $tPesquisa Agropecuária Brasileira, Brasília$gv. 43, n. 2, p. 195-199, 2008.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
18/12/2018 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
OTTO, P. I.; GUIMARÃES, S. E. F.; VERARDO, L. L.; AZEVEDO, A. L. S.; VANDENPLAS, J.; SOARES, A. C. C.; SEVILLANO, C. A.; VERONEZE R; PIRES, M. de F. A.; FREITAS, C. de; PRATA, M. C. de A.; FURLONG, J.; VERNEQUE, R. da S.; MARTINS, M. F.; PANETTO, J. C. do C.; CARVALHO, W. A.; GOBO, D. O. R.; SILVA, M. V. G. B.; MACHADO, M. A. |
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Afiliação: |
PAMELA I. OTTO, UFV; SIMONE ELIZA FACIONI GUIMARAES, UFV; LUCAS L. VERARDO, UFV; ANA LUISA SOUSA AZEVEDO, CNPGL; J. VANDENPLAS, Wageningen University; ALINE C. C. SOARES, UFV; CLAUDIA A. SEVILLANO, Wageningen University; Topigs Norsvin Research Center, Beuningen; RENATA VERONEZE, UFV; MARIA DE FATIMA AVILA PIRES, CNPGL; CELIO DE FREITAS, CNPGL; MARCIA CRISTINA DE AZEVEDO PRATA, CNPGL; JOHN FURLONG, CNPGL; RUI DA SILVA VERNEQUE, CNPGL; MARTA FONSECA MARTINS, CNPGL; JOAO CLAUDIO DO CARMO PANETTO, CNPGL; WANESSA ARAUJO CARVALHO, CNPGL; DIEGO O. R. GOBO, UFV; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; MARCO ANTONIO MACHADO, CNPGL. |
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Título: |
Genome-wide association studies for tick resistance in Bos taurus × Bos indicus crossbred cattle: A deeper look into this intricate mechanism. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 101, n. 12, p. 11020-11032, 2018. |
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DOI: |
10.3168/jds.2017-14223 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT Rhipicephalus (Boophilus) microplus is the main cattle ectoparasite in tropical areas. Gir × Holstein crossbred cows are well adapted to different production systems in Brazil. In this context, we performed genome-wide association study (GWAS) and post-GWAS analyses for R. microplus resistance in an experimental Gir × Holstein F2 population. Single nucleotide polymorphisms (SNP) identified in GWAS were used to build gene networks and to investigate the breed of origin for its alleles. Tick artificial infestations were performed during the dry and rainy seasons. Illumina BovineSNP50 BeadChip (Illumina Inc., San Diego, CA) and single-step BLUP procedure was used for GWAS. Post-GWAS analyses were performed by gene ontology terms enrichment and gene transcription factors networks, generated from enriched transcription factors, identified from the promoter sequences of selected gene sets. The genetic origin of marker alleles in the F2 population was assigned using the breed of origin of alleles approach. Heritability estimates for tick counts were 0.40 ± 0.11 in the rainy season and 0.54 ± 0.11 in the dry season. The top ten 0.5-Mbp windows with the highest percentage of genetic variance explained by SNP markers were found in chromosomes 10 and 23 for both the dry and rainy seasons. Gene network analyses allowed the identification of genes involved with biological processes relevant to immune system functions (TREM1, TREM2, and CD83). Gene-transcription factors network allowed the identification of genes involved with immune functions (MYO5A, TREML1, and PRSS16). In resistant animals, the average proportion of animals showing significant SNPs with paternal and maternal alleles originated from Gir breed was 44.8% whereas the proportion of animals with both paternal and maternal alleles originated from Holstein breed was 11.3%. Susceptible animals showing both paternal and maternal alleles originated from Holstein breed represented 44.6% on average, whereas both paternal and maternal alleles originated from Gir breed animals represented 9.3%. This study allowed us to identify candidate genes for tick resistance in Gir × Holstein crossbreds in both rainy and dry seasons. According to the origin of alleles analysis, we found that most animals classified as resistant showed 2 alleles from Gir breed, while the susceptible ones showed alleles from Holstein. Based on these results, the identified genes may be thoroughly investigated in additional experiments aiming to validate their effects on tick resistance phenotype in cattle. MenosABSTRACT Rhipicephalus (Boophilus) microplus is the main cattle ectoparasite in tropical areas. Gir × Holstein crossbred cows are well adapted to different production systems in Brazil. In this context, we performed genome-wide association study (GWAS) and post-GWAS analyses for R. microplus resistance in an experimental Gir × Holstein F2 population. Single nucleotide polymorphisms (SNP) identified in GWAS were used to build gene networks and to investigate the breed of origin for its alleles. Tick artificial infestations were performed during the dry and rainy seasons. Illumina BovineSNP50 BeadChip (Illumina Inc., San Diego, CA) and single-step BLUP procedure was used for GWAS. Post-GWAS analyses were performed by gene ontology terms enrichment and gene transcription factors networks, generated from enriched transcription factors, identified from the promoter sequences of selected gene sets. The genetic origin of marker alleles in the F2 population was assigned using the breed of origin of alleles approach. Heritability estimates for tick counts were 0.40 ± 0.11 in the rainy season and 0.54 ± 0.11 in the dry season. The top ten 0.5-Mbp windows with the highest percentage of genetic variance explained by SNP markers were found in chromosomes 10 and 23 for both the dry and rainy seasons. Gene network analyses allowed the identification of genes involved with biological processes relevant to immune system functions (TREM1, TREM2, and CD83). Gene-transcription factors network a... Mostrar Tudo |
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Palavras-Chave: |
Breed of origin; Gene network; Gir × Holstein crossbred. |
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Thesaurus NAL: |
Genetic variance. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03793naa a2200397 a 4500
001 2101869
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
024 7 $a10.3168/jds.2017-14223$2DOI
100 1 $aOTTO, P. I.
245 $aGenome-wide association studies for tick resistance in Bos taurus × Bos indicus crossbred cattle$bA deeper look into this intricate mechanism.$h[electronic resource]
260 $c2018
520 $aABSTRACT Rhipicephalus (Boophilus) microplus is the main cattle ectoparasite in tropical areas. Gir × Holstein crossbred cows are well adapted to different production systems in Brazil. In this context, we performed genome-wide association study (GWAS) and post-GWAS analyses for R. microplus resistance in an experimental Gir × Holstein F2 population. Single nucleotide polymorphisms (SNP) identified in GWAS were used to build gene networks and to investigate the breed of origin for its alleles. Tick artificial infestations were performed during the dry and rainy seasons. Illumina BovineSNP50 BeadChip (Illumina Inc., San Diego, CA) and single-step BLUP procedure was used for GWAS. Post-GWAS analyses were performed by gene ontology terms enrichment and gene transcription factors networks, generated from enriched transcription factors, identified from the promoter sequences of selected gene sets. The genetic origin of marker alleles in the F2 population was assigned using the breed of origin of alleles approach. Heritability estimates for tick counts were 0.40 ± 0.11 in the rainy season and 0.54 ± 0.11 in the dry season. The top ten 0.5-Mbp windows with the highest percentage of genetic variance explained by SNP markers were found in chromosomes 10 and 23 for both the dry and rainy seasons. Gene network analyses allowed the identification of genes involved with biological processes relevant to immune system functions (TREM1, TREM2, and CD83). Gene-transcription factors network allowed the identification of genes involved with immune functions (MYO5A, TREML1, and PRSS16). In resistant animals, the average proportion of animals showing significant SNPs with paternal and maternal alleles originated from Gir breed was 44.8% whereas the proportion of animals with both paternal and maternal alleles originated from Holstein breed was 11.3%. Susceptible animals showing both paternal and maternal alleles originated from Holstein breed represented 44.6% on average, whereas both paternal and maternal alleles originated from Gir breed animals represented 9.3%. This study allowed us to identify candidate genes for tick resistance in Gir × Holstein crossbreds in both rainy and dry seasons. According to the origin of alleles analysis, we found that most animals classified as resistant showed 2 alleles from Gir breed, while the susceptible ones showed alleles from Holstein. Based on these results, the identified genes may be thoroughly investigated in additional experiments aiming to validate their effects on tick resistance phenotype in cattle.
650 $aGenetic variance
653 $aBreed of origin
653 $aGene network
653 $aGir × Holstein crossbred
700 1 $aGUIMARÃES, S. E. F.
700 1 $aVERARDO, L. L.
700 1 $aAZEVEDO, A. L. S.
700 1 $aVANDENPLAS, J.
700 1 $aSOARES, A. C. C.
700 1 $aSEVILLANO, C. A.
700 1 $aVERONEZE R
700 1 $aPIRES, M. de F. A.
700 1 $aFREITAS, C. de
700 1 $aPRATA, M. C. de A.
700 1 $aFURLONG, J.
700 1 $aVERNEQUE, R. da S.
700 1 $aMARTINS, M. F.
700 1 $aPANETTO, J. C. do C.
700 1 $aCARVALHO, W. A.
700 1 $aGOBO, D. O. R.
700 1 $aSILVA, M. V. G. B.
700 1 $aMACHADO, M. A.
773 $tJournal of Dairy Science$gv. 101, n. 12, p. 11020-11032, 2018.
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