The genetic ancestry of American Creole cattle inferred from uniparental and autosomal genetic markers

Cattle imported from the Iberian Peninsula spread throughout America in the early years of discovery and colonization to originate Creole breeds, which adapted to a wide diversity of environments and later received influences from other origins, including zebu cattle in more recent years. We analyzed uniparental genetic markers and autosomal microsatellites in DNA samples from 114 cattle breeds distributed worldwide, including 40 Creole breeds representing the whole American continent, and samples from the Iberian Peninsula, British islands, Continental Europe, Africa and American zebu. We show that Creole breeds differ considerably from each other, and most have their own identity or group with others from neighboring regions. Results with mtDNA indicate that T1c-lineages are rare in Iberia but common in Africa and are well represented in Creoles from Brazil and Colombia, lending support to a direct African influence on Creoles. This is reinforced by the sharing of a unique Y-haplotype between cattle from Mozambique and Creoles from Argentina. Autosomal microsatellites indicate that Creoles occupy an intermediate position between African and European breeds, and some Creoles show a clear Iberian signature. Our results confirm the mixed ancestry of American Creole cattle and the role that African cattle have played in their development.Fil: Ginja, Catarina. Universidad de Porto. Facultad de Ciências. Centro de Investigação em Biodiversidade e Recursos Genéticos; PortugalFil: Gama, Luis Telo. Universidade de Lisboa. Faculdade de Medicina Veterinaria; PortugalFil: Cortés, Oscar. Universidad Complutense de Madrid; EspañaFil: Martin Burriel, Inmaculada. Universidad de Zaragoza; EspañaFil: Vega Pla, Jose Luis. Servicio de Cría Caballar de las Fuerzas Armadas. Laboratorio de Investigación Aplicada; EspañaFil: Penedo, Cecilia. University of California; Estados UnidosFil: Sponenberg, Phil. Virginia-Maryland Regional College of Veterinary Medicine; Estados UnidosFil: Cañón Ferreras, Francisco Javier. Universidad Complutense de Madrid; EspañaFil: Sanz, Arianne. Universidad de Zaragoza; EspañaFil: Egito, Andrea Alves do. Embrapa Gado de Corte; BrasilFil: Alvares, Luz Angela. Universidad Nacional de Colombia; ColombiaFil: Giovambattista, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Agha, Saif. Ain Shams University. Faculty of Agriculture, Animal Production Department; EgiptoFil: Rogberg Muñoz, Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Cassiano Lara, Maria Aparecida. Centro de Genética e Reprodução. Instituto de Zootecnia; BrasilFil: Delgado, Juan Vicente. Universidad de Córdoba; EspañaFil: Martinez, Amparo. Universidad de Córdoba; Españ

The genetic ancestry of American Creole cattle inferred from uniparental and autosomal genetic markers

Cattle imported from the Iberian Peninsula spread throughout America in the early years of discovery and colonization to originate Creole breeds, which adapted to a wide diversity of environments and later received influences from other origins, including zebu cattle in more recent years. We analyzed uniparental genetic markers and autosomal microsatellites in DNA samples from 114 cattle breeds distributed worldwide, including 40 Creole breeds representing the whole American continent, and samples from the Iberian Peninsula, British islands, Continental Europe, Africa and American zebu. We show that Creole breeds differ considerably from each other, and most have their own identity or group with others from neighboring regions. Results with mtDNA indicate that T1c-lineages are rare in Iberia but common in Africa and are well represented in Creoles from Brazil and Colombia, lending support to a direct African influence on Creoles. This is reinforced by the sharing of a unique Y-haplotype between cattle from Mozambique and Creoles from Argentina. Autosomal microsatellites indicate that Creoles occupy an intermediate position between African and European breeds, and some Creoles show a clear Iberian signature. Our results confirm the mixed ancestry of American Creole cattle and the role that African cattle have played in their development.Fil: Ginja, Catarina. Universidad de Porto. Facultad de Ciências. Centro de Investigação em Biodiversidade e Recursos Genéticos; PortugalFil: Gama, Luis Telo. Universidade de Lisboa. Faculdade de Medicina Veterinaria; PortugalFil: Cortés, Oscar. Universidad Complutense de Madrid; EspañaFil: Martin Burriel, Inmaculada. Universidad de Zaragoza; EspañaFil: Vega Pla, Jose Luis. Servicio de Cría Caballar de las Fuerzas Armadas. Laboratorio de Investigación Aplicada; EspañaFil: Penedo, Cecilia. University of California; Estados UnidosFil: Sponenberg, Phil. Virginia-Maryland Regional College of Veterinary Medicine; Estados UnidosFil: Cañón Ferreras, Francisco Javier. Universidad Complutense de Madrid; EspañaFil: Sanz, Arianne. Universidad de Zaragoza; EspañaFil: Egito, Andrea Alves do. Embrapa Gado de Corte; BrasilFil: Alvares, Luz Angela. Universidad Nacional de Colombia; ColombiaFil: Giovambattista, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Agha, Saif. Ain Shams University. Faculty of Agriculture, Animal Production Department; EgiptoFil: Rogberg Muñoz, Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Cassiano Lara, Maria Aparecida. Centro de Genética e Reprodução. Instituto de Zootecnia; BrasilFil: Delgado, Juan Vicente. Universidad de Córdoba; EspañaFil: Martinez, Amparo. Universidad de Córdoba; Españ

The genetic ancestry of American Creole cattle inferred from uniparental and autosomal genetic markers

Cattle imported from the Iberian Peninsula spread throughout America in the early years of discovery and colonization to originate Creole breeds, which adapted to a wide diversity of environments and later received infuences from other origins, including zebu cattle in more recent years. We analyzed uniparental genetic markers and autosomal microsatellites in DNA samples from 114 cattle breeds distributed worldwide, including 40 Creole breeds representing the whole American continent, and samples from the Iberian Peninsula, British islands, Continental Europe, Africa and American zebu. We show that Creole breeds difer considerably from each other, and most have their own identity or group with others from neighboring regions. Results with mtDNA indicate that T1c-lineages are rare in Iberia but common in Africa and are well represented in Creoles from Brazil and Colombia, lending support to a direct African infuence on Creoles. This is reinforced by the sharing of a unique Y-haplotype between cattle from Mozambique and Creoles from Argentina. Autosomal microsatellites indicate that Creoles occupy an intermediate position between African and European breeds, and some Creoles show a clear Iberian signature. Our results confrm the mixed ancestry of American Creole cattle and the role that African cattle have played in their development.Este trabajo tiene una enmienda, a la que puede accederse haciendo clic en el primer enlace de "Documentos relacionados".Facultad de Ciencias Veterinaria

The genetic ancestry of American Creole cattle inferred from uniparental and autosomal genetic markers

Cattle imported from the Iberian Peninsula spread throughout America in the early years of discovery and colonization to originate Creole breeds, which adapted to a wide diversity of environments and later received influences from other origins, including zebu cattle in more recent years. We analyzed uniparental genetic markers and autosomal microsatellites in DNA samples from 114 cattle breeds distributed worldwide, including 40 Creole breeds representing the whole American continent, and samples from the Iberian Peninsula, British islands, Continental Europe, Africa and American zebu. We show that Creole breeds differ considerably from each other, and most have their own identity or group with others from neighboring regions. Results with mtDNA indicate that T1c-lineages are rare in Iberia but common in Africa and are well represented in Creoles from Brazil and Colombia, lending support to a direct African influence on Creoles. This is reinforced by the sharing of a unique Y-haplotype between cattle from Mozambique and Creoles from Argentina. Autosomal microsatellites indicate that Creoles occupy an intermediate position between African and European breeds, and some Creoles show a clear Iberian signature. Our results confirm the mixed ancestry of American Creole cattle and the role that African cattle have played in their development

The genetic ancestry of american creole cattle inferred from uniparental and autosomal genetic markers.

Cattle imported from the Iberian Peninsula spread throughout America in the early years of discovery and colonization to originate Creole breeds, which adapted to a wide diversity of environments and later received influences from other origins, including zebu cattle in more recent years. We analyzed uniparental genetic markers and autosomal microsatellites in DNA samples from 114 cattle breeds distributed worldwide, including 40 Creole breeds representing the whole American continent, and samples from the Iberian Peninsula, British islands, Continental Europe, Africa and American zebu. We show that Creole breeds differ considerably from each other, and most have their own identity or group with others from neighboring regions. Results with mtDNA indicate that T1c-lineages are rare in Iberia but common in Africa and are well represented in Creoles from Brazil and Colombia, lending support to a direct African influence on Creoles. This is reinforced by the sharing of a unique Y-haplotype between cattle from Mozambique and Creoles from Argentina. Autosomal microsatellites indicate that Creoles occupy an intermediate position between African and European breeds, and some Creoles show a clear Iberian signature. Our results confirm the mixed ancestry of American Creole cattle and the role that African cattle have played in their development

Genética de paisagem de Bovinos no Brasil

<p>O objetivo deste estudo foi de explorar padrões de estrutura genética espacial em raças bovinas localmente adaptadas no Brasil. Os 876 animais das dez raças avaliadas foram georeferenciados usando o software QGIS 2.4.0, demonstrando os diferentes locais de amostragem. Os testes de Mantel, autocorrelação espacial e Teste de Monmonier foram realizados. Para os testes de correlação espacial as distâncias variaram de 5 a 15 classes. Em sequência os dados foram analisados utilizando o procedimento Forma da Paisagem Genética. Os resultados indicam descontinuidades genéticas no Centro-oeste, Sul e Sudeste. Existe uma falta de correlação entre distância genética e geográfica. Assim os animais geograficamente mais distanciados não são geneticamente mais distantes. O Monmonier Maximum Distance Algorithm indica em uma subdivisão inicial que separa o Curraleiro dos outros e depois o Pantaneiro dos outros. Outra subdivisão separa Crioulo, Mocho Nacional e Caracu. Se atendo que no município de Brasília e Alvorada do Norte tiveram três raças pontuadas: Caracu, Curraleiro e Mocho Nacional, mas para análise somente foram utilizados os dados da raça Curraleiro.<b> </b>Foi apresentada descontinuidade genética a partir dos 176 km quando analisados com uma quantidade maior de classes.</p> <p> </p

Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic Images

The objective of this study was to compare physiological and thermographic responses to heat stress in three breeds of cattle. Fifteen animals of each of the Nelore, Pantaneiro and Curraleiro Pe-Duro breeds, of approximately two years of age, were evaluated. Heart and respiratory rates, rectal and surface temperature of animals as well as soil temperature were recorded at 8:30 and 15:30 on six days. Variance, correlation, principal factors and canonical analyses were carried out. There were significant differences in the rectal temperature, heart and respiratory rate between breeds (p &lt; 0.001). Nelore and Pantaneiro breeds had the highest rectal temperatures and the lowest respiratory rate (p &lt; 0.001). Breed was also significant for surface temperatures (p &lt; 0.05) showing that this factor significantly affected the response of the animal to heat tolerance in different ways. The Curraleiro Pe-Duro breed had the lowest surface temperatures independent of the period evaluated, with fewer animals that suffered with the climatic conditions, so this may be considered the best adapted when heat challenged under the experimental conditions. Thermography data showed a good correlation with the physiological indexes, and body area, neck and rump were the main points