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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Unidades Centrais. |
Data corrente: |
09/09/1998 |
Data da última atualização: |
11/04/2012 |
Autoria: |
SILVA, A. de B.; CORRAL, M. A. C.; CRUZ, E. D. |
Afiliação: |
ANTONIO DE BRITO SILVA, CPATU; MARIO ANTONIO CALDERON CORRAL, CONVÊNIO IICA/CPATU; ENIEL DAVID CRUZ, CPATU. |
Título: |
Índices de infestação de gramíneas forrageiras atacada pela cigarrinha-das-pastagens Deois incompleta Walker. |
Ano de publicação: |
1984 |
Fonte/Imprenta: |
Belém, PA: EMBRAPA-CPATU, 1984. |
Páginas: |
4 p. |
Série: |
(EMBRAPA-CPATU. Pesquisa em andamento, 143). |
Idioma: |
Português |
Palavras-Chave: |
Cigarrinha-das-pastagens; Feed grasses; Infestation; Resistência a praga. |
Thesagro: |
Deois Incompleta; Gramínea Forrageira; Infestação; Praga. |
Thesaurus Nal: |
pest resistance. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/57367/1/CPATU-PA143.pdf
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Marc: |
LEADER 00763nam a2200253 a 4500 001 1382321 005 2012-04-11 008 1984 bl uuuu u0uu1 u #d 100 1 $aSILVA, A. de B. 245 $aÍndices de infestação de gramíneas forrageiras atacada pela cigarrinha-das-pastagens Deois incompleta Walker. 260 $aBelém, PA: EMBRAPA-CPATU$c1984 300 $a4 p. 490 $a(EMBRAPA-CPATU. Pesquisa em andamento, 143). 650 $apest resistance 650 $aDeois Incompleta 650 $aGramínea Forrageira 650 $aInfestação 650 $aPraga 653 $aCigarrinha-das-pastagens 653 $aFeed grasses 653 $aInfestation 653 $aResistência a praga 700 1 $aCORRAL, M. A. C. 700 1 $aCRUZ, E. D.
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Embrapa Amazônia Oriental (CPATU) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
01/03/2000 |
Data da última atualização: |
15/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Nacional - A |
Autoria: |
REGITANO, L. C. de A.; AZEVEDO, J. L.; VENCOVSKY, R.; PACKER, I. U.; BARBOSA, P. F.; ROSA, A. J. M; SILVA, N. A.; ETCHEGARAY, M. A. L.; COUTINHO, L. L. |
Afiliação: |
LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; J. L. AZEVEDO, USP-ESALQ; R. VENCOVSKY, USP-ESALQ; IRINEU U. PACKER, USP-ESALQ; PEDRO FRANKLIN BARBOSA, CPPSE; A. J. M. ROSA, USP-ESALQ; N. A. SILVA, USP-ESALQ; M. A. L. ETCHEGARAY, USP-ESALQ; L. L. COUTINHO, USP-ESALQ. |
Título: |
Selection for breed-specific growth hormone and igf-l alleles in a synthetic beef cattle cross, Canchim. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Genetics and Molecular Biology, Ribeirão Preto, SP, v.22, n.4, p.531-537, 1999. |
Idioma: |
Inglês |
Conteúdo: |
This study was developed to evaluate selection effects on gene frequencies in a synthetic beef cattle cross (5/8 Charolais, 5/8 Zebu) named Canchim. A sample of 154 Canchim animals, representing three generation classes, was analyzed for seven molecular markers. Thirty-six Charolais cattle were also studied for comparison. A highly significant variation (P < 0.01), with a linear increase of the allele coding for valine at position 127 of the growth hormone peptide, was a linear increase of the allele coding for valine at position 127 of the growth hormone peptide, was observed through generations. This allele was found in the Charolais sample but is not observed in Brazilian Bos indicus breeds. Four alleles were found for a microsatellite in the 5' flanking region of insulin-like growth factor I gene in Canchim. Allele sizes ranged from 231 to 225 bp. There was a significant (P < 0.05) nonlinear increase in the 225-bp allele frequency. This allele was not observed in Charolais. Six alleles were observed for microsatellite CSFM50 in the Canchim population. A significant (P <0.05) linear reduction of the 168-bp allele was observed over the generations. The hypothesis of preferential mating for growth hormone polymorphism was supported by Wright's F-statistics. Estimated F"value for growth hormone was 0.59 (P < 0.01). These results suggest that selection influenced three out of seven loci analyzed. The simultaneous increases of a Bos taurus-specific growth hormone allele and a Bos indicus-specific insulin-like growth factor I allele indicate that phenotypic selection favored different regions of both genomes. MenosThis study was developed to evaluate selection effects on gene frequencies in a synthetic beef cattle cross (5/8 Charolais, 5/8 Zebu) named Canchim. A sample of 154 Canchim animals, representing three generation classes, was analyzed for seven molecular markers. Thirty-six Charolais cattle were also studied for comparison. A highly significant variation (P < 0.01), with a linear increase of the allele coding for valine at position 127 of the growth hormone peptide, was a linear increase of the allele coding for valine at position 127 of the growth hormone peptide, was observed through generations. This allele was found in the Charolais sample but is not observed in Brazilian Bos indicus breeds. Four alleles were found for a microsatellite in the 5' flanking region of insulin-like growth factor I gene in Canchim. Allele sizes ranged from 231 to 225 bp. There was a significant (P < 0.05) nonlinear increase in the 225-bp allele frequency. This allele was not observed in Charolais. Six alleles were observed for microsatellite CSFM50 in the Canchim population. A significant (P <0.05) linear reduction of the 168-bp allele was observed over the generations. The hypothesis of preferential mating for growth hormone polymorphism was supported by Wright's F-statistics. Estimated F"value for growth hormone was 0.59 (P < 0.01). These results suggest that selection influenced three out of seven loci analyzed. The simultaneous increases of a Bos taurus-specific growth hormone allele and a ... Mostrar Tudo |
Palavras-Chave: |
Breed-specific; Canchim; Cross; Cruzamento sintetico; Growth Hormone; Hormonio de crescimento. |
Thesagro: |
Gado de Corte. |
Thesaurus NAL: |
beef cattle. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 02573naa a2200313 a 4500 001 1044695 005 2021-12-15 008 1999 bl uuuu u00u1 u #d 100 1 $aREGITANO, L. C. de A. 245 $aSelection for breed-specific growth hormone and igf-l alleles in a synthetic beef cattle cross, Canchim.$h[electronic resource] 260 $c1999 520 $aThis study was developed to evaluate selection effects on gene frequencies in a synthetic beef cattle cross (5/8 Charolais, 5/8 Zebu) named Canchim. A sample of 154 Canchim animals, representing three generation classes, was analyzed for seven molecular markers. Thirty-six Charolais cattle were also studied for comparison. A highly significant variation (P < 0.01), with a linear increase of the allele coding for valine at position 127 of the growth hormone peptide, was a linear increase of the allele coding for valine at position 127 of the growth hormone peptide, was observed through generations. This allele was found in the Charolais sample but is not observed in Brazilian Bos indicus breeds. Four alleles were found for a microsatellite in the 5' flanking region of insulin-like growth factor I gene in Canchim. Allele sizes ranged from 231 to 225 bp. There was a significant (P < 0.05) nonlinear increase in the 225-bp allele frequency. This allele was not observed in Charolais. Six alleles were observed for microsatellite CSFM50 in the Canchim population. A significant (P <0.05) linear reduction of the 168-bp allele was observed over the generations. The hypothesis of preferential mating for growth hormone polymorphism was supported by Wright's F-statistics. Estimated F"value for growth hormone was 0.59 (P < 0.01). These results suggest that selection influenced three out of seven loci analyzed. The simultaneous increases of a Bos taurus-specific growth hormone allele and a Bos indicus-specific insulin-like growth factor I allele indicate that phenotypic selection favored different regions of both genomes. 650 $abeef cattle 650 $aGado de Corte 653 $aBreed-specific 653 $aCanchim 653 $aCross 653 $aCruzamento sintetico 653 $aGrowth Hormone 653 $aHormonio de crescimento 700 1 $aAZEVEDO, J. L. 700 1 $aVENCOVSKY, R. 700 1 $aPACKER, I. U. 700 1 $aBARBOSA, P. F. 700 1 $aROSA, A. J. M 700 1 $aSILVA, N. A. 700 1 $aETCHEGARAY, M. A. L. 700 1 $aCOUTINHO, L. L. 773 $tGenetics and Molecular Biology, Ribeirão Preto, SP$gv.22, n.4, p.531-537, 1999.
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