Artículo
Incidence of 1/29 translocation in Bolivian Creole and Brahman Yacumeño cattle
de Luca, Julio Cesar
; Zufriategui, L.; Picco, Sebastian Julio
; Ripoli, María Verónica
; Giovambattista, Guillermo
; Rojas, F.V.; Dulout, Fernando Noel
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Fecha de publicación:
06/2002
Editorial:
Elsevier Science Inc
Revista:
Theriogenology
ISSN:
0093-691X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In Bolivia, four different Creole cattle breeds can be found, as well as other European and Zebu breeds adapted to local environments. The relationship between the occurrence of the 1/29 translocation and subfertility is well known, and analysis of Y chromosome morphology is useful to determine a possible introgression with Bos indicus. The incidence of the 1/29 translocation was analyzed in four Bolivian Creole cattle breeds and the Brahman Yacumeño population, as well as on four farms with phenotypical Creole-type cattle. In 259 (164 dams and 95 sires) Bolivian Creole cattle, 10.42% of the individuals demonstrated the 1/29 translocation, with a variation from 0 to 28.20% between the breeds. In contrast, 43 (19 dams and 24 sires) Yacumeño Brahman and the Creole-type cattle did not show the centric fusion. The highly significant differences between Creole cattle breeds in relation to the incidence of 1/29 translocation could be a consequence of factors such as founder group, genetic drift, and selection. The low frequency observed in the Saavedreñio Creole dairy cattle might be explained by its breeding under a more intensive system, and selection according to milk yield and fertility traits. Finally, no relation between acrocentric Y chromosomes and 1/29 translocation was observed.
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Articulos(IGEVET)
Articulos de INST.DE GENETICA VET ING FERNANDO NOEL DULOUT
Articulos de INST.DE GENETICA VET ING FERNANDO NOEL DULOUT
Citación
de Luca, Julio Cesar; Zufriategui, L.; Picco, Sebastian Julio; Ripoli, María Verónica; Giovambattista, Guillermo; et al.; Incidence of 1/29 translocation in Bolivian Creole and Brahman Yacumeño cattle; Elsevier Science Inc; Theriogenology; 58; 7; 6-2002; 1273-1281
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