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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
18/03/2011 |
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Data da última atualização: |
10/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, M. V. G. B.; SONSTEGARD, T. S.; THALLMAN, R. M.; CONNOR, E. E.; SCHNABEL, R. D.; TASSELL, C. P. V. |
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Afiliação: |
MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; Tad Stewart Sonstegard, USDA/ARS; RICHARD M. THALLMAN, USDA; ERIN E. CONNOR, USDA; ROBERT D. SCHNABEL, UNIVERSITY OF MISSOURI-COLUMBIA; CURT P. VAN TASSELL, USDA. |
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Título: |
Characterization of DGAT1 Allelic effects in a sample of north american holstein cattle. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Animal Biotechnology, v. 21, p. 88-99, 2010. |
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DOI: |
https://doi.org/10.1080/10495390903504625 |
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Idioma: |
Inglês |
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Conteúdo: |
A putative causative mutation underlying a QTL was identified as a lysine to alanine non-conservative substitution at amino acid 232 of the gene encoding the acylCoA:diacylglycerol acyltransferase (DGAT1) protein. Our goal was to characterize the allelic substitution effects of this DGAT1 mutation in a large sample of Holstein bulls from North America. Statistically significant effects were identified for all of the milk production traits and somatic cell scores. Estimated average effects of substituting the lysine allele for the alanine variant on Holstein bull daughter yield deviations were −81 kg, 3.7 kg, −1.1 kg, 0.063%, 0.012%, and −0.023 units for milk yield, fat yield, protein yield, fat component, protein component, and SCS, respectively. These estimates were largely in agreement with previous studies; however, the magnitudes of the estimates were much smaller in this study. Impacts on economic indices for net merit, cheese merit, and fluid merit were modest. Because of the strong antagonism between fat and protein yield and how those traits influence economic indices, selection for DGAT1 genotypes will likely not find widespread application in the U.S. |
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Palavras-Chave: |
Substitution effect. |
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Thesaurus Nal: |
dairy cattle; milk production; quantitative trait loci. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 01943naa a2200241 a 4500
001 1881591
005 2022-08-10
008 2010 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/10495390903504625$2DOI
100 1 $aSILVA, M. V. G. B.
245 $aCharacterization of DGAT1 Allelic effects in a sample of north american holstein cattle.$h[electronic resource]
260 $c2010
520 $aA putative causative mutation underlying a QTL was identified as a lysine to alanine non-conservative substitution at amino acid 232 of the gene encoding the acylCoA:diacylglycerol acyltransferase (DGAT1) protein. Our goal was to characterize the allelic substitution effects of this DGAT1 mutation in a large sample of Holstein bulls from North America. Statistically significant effects were identified for all of the milk production traits and somatic cell scores. Estimated average effects of substituting the lysine allele for the alanine variant on Holstein bull daughter yield deviations were −81 kg, 3.7 kg, −1.1 kg, 0.063%, 0.012%, and −0.023 units for milk yield, fat yield, protein yield, fat component, protein component, and SCS, respectively. These estimates were largely in agreement with previous studies; however, the magnitudes of the estimates were much smaller in this study. Impacts on economic indices for net merit, cheese merit, and fluid merit were modest. Because of the strong antagonism between fat and protein yield and how those traits influence economic indices, selection for DGAT1 genotypes will likely not find widespread application in the U.S.
650 $adairy cattle
650 $amilk production
650 $aquantitative trait loci
653 $aSubstitution effect
700 1 $aSONSTEGARD, T. S.
700 1 $aTHALLMAN, R. M.
700 1 $aCONNOR, E. E.
700 1 $aSCHNABEL, R. D.
700 1 $aTASSELL, C. P. V.
773 $tAnimal Biotechnology$gv. 21, p. 88-99, 2010.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
05/01/2017 |
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Data da última atualização: |
22/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
WENDLING, I.; STUEPP, C. A.; ZUFFELLATO-RIBAS, K. C. |
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Afiliação: |
IVAR WENDLING, CNPF; CARLOS A. STUEPP, UNIVERSIDADE FEDERAL DO PARANÁ; KATIA C. ZUFFELLATO-RIBAS, UNIVERSIDADE FEDERAL DO PARANÁ. |
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Título: |
Araucaria angustifolia grafting: techniques, environments and origin of propagation material. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Bosque, Valdivia, v. 37, n. 2, p. 285-293, 2016. |
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DOI: |
10.4067/S0717-92002016000200007 |
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Idioma: |
Inglês |
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Conteúdo: |
Araucaria angustifolia (araucaria) is a remarkable species in the Mixed Ombrophilous Forest. The low germination of the stored seeds and its long reproductive cycle make grafting a good alternative for propagation, making possible to obtain genetically superior trees with early fruiting. However, araucaria grafting is still fraught with technical problems, culminating in low graft survival. With the objective to define and be able to explain the best methodology for the grafting of araucaria, we conducted studies based on five experiments evaluating the effects of: (I) environment and sex on graft survival; (II) methods of grafting and budding with shoots from stumps of stock plants; (III) techniques, indoor (nursery) and outdoor (directly in the field) grafting; (IV) budding with buds from different origins; and (V) chip budding with shoots from pruned apices of two ages stock plants. Graft survival was assessed throughout the experiments and the graft-union at the end. The use of controlled environments for grafting was favorable, especially in the glasshouse (64.1 % survival). Scions from female plants (55.5 % survival) showed higher suitability for grafting. Chip budding with shoots from pruned apices of 25 and 35-year-old stock plants showed survival of 87.5 % and 85.0 %, respectively. It is a technology that has unlimited potential for araucaria grafting, which may significantly contribute to its sustainable use. |
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Thesagro: |
Araucária Angustifólia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/152822/1/2016-Ivar-B-Araucaria.pdf
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Marc: |
LEADER 01993naa a2200169 a 4500
001 2059975
005 2019-02-22
008 2016 bl uuuu u00u1 u #d
024 7 $a10.4067/S0717-92002016000200007$2DOI
100 1 $aWENDLING, I.
245 $aAraucaria angustifolia grafting$btechniques, environments and origin of propagation material.$h[electronic resource]
260 $c2016
520 $aAraucaria angustifolia (araucaria) is a remarkable species in the Mixed Ombrophilous Forest. The low germination of the stored seeds and its long reproductive cycle make grafting a good alternative for propagation, making possible to obtain genetically superior trees with early fruiting. However, araucaria grafting is still fraught with technical problems, culminating in low graft survival. With the objective to define and be able to explain the best methodology for the grafting of araucaria, we conducted studies based on five experiments evaluating the effects of: (I) environment and sex on graft survival; (II) methods of grafting and budding with shoots from stumps of stock plants; (III) techniques, indoor (nursery) and outdoor (directly in the field) grafting; (IV) budding with buds from different origins; and (V) chip budding with shoots from pruned apices of two ages stock plants. Graft survival was assessed throughout the experiments and the graft-union at the end. The use of controlled environments for grafting was favorable, especially in the glasshouse (64.1 % survival). Scions from female plants (55.5 % survival) showed higher suitability for grafting. Chip budding with shoots from pruned apices of 25 and 35-year-old stock plants showed survival of 87.5 % and 85.0 %, respectively. It is a technology that has unlimited potential for araucaria grafting, which may significantly contribute to its sustainable use.
650 $aAraucária Angustifólia
700 1 $aSTUEPP, C. A.
700 1 $aZUFFELLATO-RIBAS, K. C.
773 $tBosque, Valdivia$gv. 37, n. 2, p. 285-293, 2016.
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