IGEVET   21075
INSTITUTO DE GENETICA VETERINARIA "ING. FERNANDO NOEL DULOUT"
Unidad Ejecutora - UE
artículos
Título:
D-LOOP MITOCHONDRIAL GENETIC ANALYSIS IN ABEERDEN ANGUS OLD TYPE FROM ARGENTINA
Autor/es:
VILLEGAS CASTAGNASSO E.E.; ROGBERG MUÑOZ A.; PRANDO A.J.; BALDO A.; GIOVAMBATTISTA G.
Revista:
Basic and Applied Genetics
Editorial:
SOCIEDAD ARGENTINA DE GENÉTICA
Referencias:
Lugar: Buenos Aires; Año: 2015 p. 11 - 17
ISSN:
1666-0390
Resumen:
The massive use of reproductive breeding technologies (mainly Artificial Insemination and Embryo Transfer) resulted in an important decreasein the diversity in many breeds, and some genetic lines have been lost. Within the Angus breed, the ?New Type? gain importance since 1970, leavingthe ?Old Type? to a reduced number of herds in the whole world. The objective of this work was to determine the genetic diversity in an ?OldType? herd in Argentina. DNA samples were analyzed for sequence variation in the hypervariable region of the mitochondrial DNA (D-loop).Sequence comparison and phylogenetic analyses revealed that haplotypes fell into European haplogroup (T3) in general, and in particular hadhigh similarity with British haplotypes. Six distinct haplotypes were obtained, that differed from zero to four DNA bases with respect to the nodalsequence T3, with a nucleotide diversity of 0.442. Matrilineages genetic analysis suggested a Scottish origin of this herd. These results suggest thatthis herd could be a genetic reservoir of the Old Scottish Aberdeen Angus cattle.