Genetic distance between Curraleiro Pé-Duro cattle and breeds raised in Brazil and the United States
The present work evaluated the genetic distance, similarities, particularities and genetic structure of two local breeds and two Brazilian zebu, comparing them with fifteen commercial and locally adapted North American bovine breeds of diverse origins through 34 microsatellites and several molecular statistical analysis programs. The results showed that the degree of differentiation between the studied races indicates low gene flow among the populations analyzed, which demonstrates reproductive isolation. It is also obvious the wide variation between individuals (75%) and the small variation between races (25%), mainly among the North American. The animals grouped according to their geographical origins. Work involving locally adapted breeds is scarce, since these animals are not as productive as commercial breeds in use today. However, these tropically adapted groups can be used in crosses with more productive exotic breeds, but less adapted to the prevalent conditions in tropical and subtropical regions. The great genetic distance observed among Brazilian Bos taurus, locally adapted, with zebu and North American commercial breeds is a good indication of the potential use of those in mates looking to the gain provided by heterosis and meat quality improvement produced in Brazil and sustainability of livestock activity by the use of locally adapted cattle.
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Asociacion Latinoamericana de Produccion Animal
2022
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Carvalho, Geraldo Quirino, Célia R. Paiva, Samuel R. Blackburn, Harvey D. |
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Carvalho, Geraldo Quirino, Célia R. Paiva, Samuel R. Blackburn, Harvey D. Genetic distance between Curraleiro Pé-Duro cattle and breeds raised in Brazil and the United States |
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Carvalho, Geraldo Quirino, Célia R. Paiva, Samuel R. Blackburn, Harvey D. |
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Carvalho, Geraldo |
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Genetic distance between Curraleiro Pé-Duro cattle and breeds raised in Brazil and the United States |
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Genetic distance between Curraleiro Pé-Duro cattle and breeds raised in Brazil and the United States |
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Genetic distance between Curraleiro Pé-Duro cattle and breeds raised in Brazil and the United States |
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Genetic distance between Curraleiro Pé-Duro cattle and breeds raised in Brazil and the United States |
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Genetic distance between Curraleiro Pé-Duro cattle and breeds raised in Brazil and the United States |
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genetic distance between curraleiro pé-duro cattle and breeds raised in brazil and the united states |
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The present work evaluated the genetic distance, similarities, particularities and genetic structure of two local breeds and two Brazilian zebu, comparing them with fifteen commercial and locally adapted North American bovine breeds of diverse origins through 34 microsatellites and several molecular statistical analysis programs. The results showed that the degree of differentiation between the studied races indicates low gene flow among the populations analyzed, which demonstrates reproductive isolation. It is also obvious the wide variation between individuals (75%) and the small variation between races (25%), mainly among the North American. The animals grouped according to their geographical origins. Work involving locally adapted breeds is scarce, since these animals are not as productive as commercial breeds in use today. However, these tropically adapted groups can be used in crosses with more productive exotic breeds, but less adapted to the prevalent conditions in tropical and subtropical regions. The great genetic distance observed among Brazilian Bos taurus, locally adapted, with zebu and North American commercial breeds is a good indication of the potential use of those in mates looking to the gain provided by heterosis and meat quality improvement produced in Brazil and sustainability of livestock activity by the use of locally adapted cattle. |
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Asociacion Latinoamericana de Produccion Animal |
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2022 |
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https://ojs.alpa.uy/index.php/ojs_files/article/view/2812 |
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oai:ojs.ojs.alpa.uy:article-28122022-03-15T17:34:38Z Genetic distance between Curraleiro Pé-Duro cattle and breeds raised in Brazil and the United States Distancia genética entre el ganado Curraleiro Pé-Duro y las razas criadas en Brasil y Estados Unidos Distância genética entre bovinos Curraleiro Pé-Duro e raças criadas no Brasil e nos Estados Unidos Carvalho, Geraldo Quirino, Célia R. Paiva, Samuel R. Blackburn, Harvey D. beef cattle genetic structure zebu taurus local breed tropics ganado de carne estructura genetica taurino cebu raxas locales tropico gado de corte estrutura genetica taurino zebu Raças locais tropico The present work evaluated the genetic distance, similarities, particularities and genetic structure of two local breeds and two Brazilian zebu, comparing them with fifteen commercial and locally adapted North American bovine breeds of diverse origins through 34 microsatellites and several molecular statistical analysis programs. The results showed that the degree of differentiation between the studied races indicates low gene flow among the populations analyzed, which demonstrates reproductive isolation. It is also obvious the wide variation between individuals (75%) and the small variation between races (25%), mainly among the North American. The animals grouped according to their geographical origins. Work involving locally adapted breeds is scarce, since these animals are not as productive as commercial breeds in use today. However, these tropically adapted groups can be used in crosses with more productive exotic breeds, but less adapted to the prevalent conditions in tropical and subtropical regions. The great genetic distance observed among Brazilian Bos taurus, locally adapted, with zebu and North American commercial breeds is a good indication of the potential use of those in mates looking to the gain provided by heterosis and meat quality improvement produced in Brazil and sustainability of livestock activity by the use of locally adapted cattle. El presente trabajo evaluó la distancia genética, similitudes, particularidades y estructura genética de dos razas locales y dos bovinos cebú brasileños, comparándolas con quince razas bovinas norteamericanas comerciales y adaptadas localmente de diversos orígenes a través de 34 microsatélites y varios programas de análisis estadístico molecular. Los resultados mostraron que el grado de diferenciación entre las razas estudiadas indica bajo flujo de genes entre las poblaciones analizadas, lo que demuestra aislamiento reproductivo. La gran variación entre individuos (75%) y la pequeña variación entre razas (25%), especialmente entre los norteamericanos, también son obvias. Los animales se agruparon según su origen geográfico. El trabajo con razas adaptadas localmente es escaso, ya que estos animales no son tan productivos como las razas comerciales que se utilizan en la actualidad. Sin embargo, estos grupos adaptados al trópico pueden usarse en cruces con razas exóticas que son más productivas, pero menos adaptadas a las condiciones prevalecientes en las regiones tropicales y subtropicales. La gran distancia genética observada entre la taurina brasileña adaptada localmente con cebú y las razas comerciales de América del Norte es una buena indicación del uso potencial de estas en cruces con miras a la ganancia proporcionada por la heterosis y la mejora de la calidad de la carne producida en Brasil y en sostenibilidad de la actividad ganadera mediante el uso de ganado adaptado localmente. O presente trabalho avaliou a distância genética, similaridades, particularidades e estrutura genética de duas raças locais e duas zebuínas brasileiras, comparando-as com quinze raças bovinas norte-americanas comerciais e localmente adaptadas de origens diversas através de 34 microssatélites e diversos programas de análises estatísticas moleculares. Os resultados mostraram que o grau de diferenciação entre as raças estudadas indica baixo fluxo de genes entre as populações analisadas o que demonstra isolamento reprodutivo. Também é óbvia a grande variação entre indivíduos (75%) e a pequena variação entre raças (25%), principalmente entre as Norte-americanas. Os animais se agruparam conforme suas origens geográficas. Os trabalhos envolvendo raças localmente adaptadas são escassos, uma vez que esses animais não são tão produtivos quanto as raças comerciais em uso na atualidade. Todavia, esses grupamentos tropicalmente adaptados podem ser usados em cruzamentos com raças exóticas mais produtivas, porém menos adaptadas às condições prevalentes nas regiões tropicais e subtropicais. A grande distância genética observadas entre os taurinos brasileiros, localmente adaptados, com zebuínos e raças comerciais norte-americanas é um bom indicativo do potencial uso daquelas em cruzamentos com vistas ao ganho proporcionado pela heterose e melhoria da qualidade da carne produzida no Brasil e a sustentabilidade da atividade pecuária pelo uso de bovinos localmente adaptados. Asociacion Latinoamericana de Produccion Animal 2022-03-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Articulo cientifico original Texto texto application/pdf text/html text/xml https://ojs.alpa.uy/index.php/ojs_files/article/view/2812 10.53588/alpa.300202 Latin American Archives of Animal Production; Vol. 30 No. 2 (2022): Numero dedicado a las especies criollas; 79-89 Archivos Latinoamericanos de Producción Animal; Vol. 30 Núm. 2 (2022): Numero dedicado a las especies criollas; 79-89 2075-8359 1022-1301 por https://ojs.alpa.uy/index.php/ojs_files/article/view/2812/1601 https://ojs.alpa.uy/index.php/ojs_files/article/view/2812/1604 https://ojs.alpa.uy/index.php/ojs_files/article/view/2812/1613 Copyright (c) 2022 Gerald Carvalho, Célia R. Quirino, Samuel R. Paiva, Harvey D. Blackburn https://creativecommons.org/licenses/by-nc-sa/4.0 |