Zebu-taurine variation in Y chromosomal DNA: a sensitive assay for genetic introgression in West African trypanotolerant cattle populations

Autor:	R. T. Loftus, David E. MacHugh, R.-S. Sow, Edward Patrick Cunningham, Daniel G. Bradley, C H Hoste
Rok vydání:	2009
Předmět:	Genetics Introgression Zoology Locus (genetics) General Medicine Biology Zebu Y chromosome Crossbreed Genetic marker Animal Science and Zoology Chromosomal dna Southern blot
Zdroj:	Animal Genetics. 25:7-12
ISSN:	1365-2052 0268-9146
DOI:	10.1111/j.1365-2052.1994.tb00440.x
Popis:	Summary Owing to increasing scientific and agricultural interest in the disease-resistant (trypanotolerant), indigenous cattle breeds of West and Central Africa, there is a need for a rational genetically based description of populations in the region. The greatest threat to the invaluable genetic resource represented by these animals is that of extensive genetic introgression of distantly related zebu cattle from northern populations which do not share their inherited tolerances. Southern blotting with a chromosome Y-specific probe, btDYZ-1 (locus DYZ1) is shown to be a sensitive assay to detect such introgression. Evidence of historical crossbreeding is reported in two important N'Dama populations previously classed as purely taurine.
Databáze:	OpenAIRE
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