IGEVET   21075
INSTITUTO DE GENETICA VETERINARIA "ING. FERNANDO NOEL DULOUT"
Unidad Ejecutora - UE
artículos
Título:
Meta-Analysis of Mitochondrial DNA Reveals Several Population Bottlenecks during Worldwide Migrations of Cattle
Autor/es:
LENSTRA JA; AJMONE-MARSAN P.; BEJA-PEREIRA A; BOLLONGINO R; BRADLEY DG; COLLI L.; DE GAETANO A.; CEIRIDWEN JE; FELIUS M.; FERRETI L.; GINJA C.; HRISTOV P.; KANTANEN J.; LIRON J.P.; MAGEE D.; NEGRINI R.; RADOSLAVOV G.
Revista:
Diversity
Editorial:
MDPI
Referencias:
Lugar: Basel; Año: 2014 vol. 6 p. 178 - 187
ISSN:
1424-2818
Resumen:
Several studies have investigated the differentiation of mitochondrial DNA in Eurasian, African and American cattle as well as archaeological bovine material. A globalsurvey of these studies shows that haplogroup distributions are more stable in time than inspace. All major migrations of cattle have shifted the haplogroup distributions considerablywith a reduction of the number of haplogroups and/or an expansion of haplotypes that arerare or absent in the ancestral populations. The most extreme case is the almost exclusivecolonization of Africa by the T1 haplogroup, which is rare in Southwest Asian cattle. In contrast, ancient samples invariably show continuity with present-day cattle from thesame location. These findings indicate strong maternal founder effects followed by limitedmaternal gene flow when new territories are colonized. However, effects of adaptation tonew environments may also play a role.