Biblioteca de la Universidad Complutense de Madrid

The origins of iberian horses assessed via mitochondrial ADN

Impacto



Royo, L. J. y Álvarez, I. y Beja Pereira, A. y Molina, A. y Fernández, I. y Jordana, J. y Gómez, E. y Gutiérrez, J. P. y Goyache, F. (2005) The origins of iberian horses assessed via mitochondrial ADN. Journal of Heredity, 96 (6). pp. 663-669. ISSN 0022-1503

[img]
Vista previa
PDF
430kB


Resumen

Despite a number of recent studies that have focused on the origin of domestic horses, genetic relationships between major geographical clusters still remain poorly understood. In this study we analyzed a 296 bp mtDNA fragment from the HVI region of 171 horses representing 11 native Iberian, Barb, and Exmoor breeds to assess the maternal phylogeography of
Iberian horses. The mtDNA haplogroup with a CCG motif (nucleotide position 15,494 to 15,496) was the most frequent in Iberian and Barb breeds (0.42 and 0.57, respectively), regardless of geographic location or group of breeds. This finding supports the close genetic relationship between the ancestral mare populations of the Iberian Peninsula and Northern Africa. Phenotypic differences among the Northern and Southern Iberian groups of breeds are not explained by population subdivision based on maternal lineages. Our results also suggest that Northern Iberian ponies—which are phenotypically close to British ponies, especially Exmoor—are the result of an introgression rather than population replacement.


Tipo de documento:Artículo
Materias:Ciencias Biomédicas > Veterinaria > Ganado equino
Ciencias Biomédicas > Biología > Genética
Código ID:5702
Depositado:13 Jun 2006
Última Modificación:06 Feb 2014 07:45

Sólo personal del repositorio: página de control del artículo