Y Chromosome Haplotype Analysis in Portuguese Cattle Breeds Using SNPs and STRs
Cattle are one of the most overly domesticate animals on the planet and consequentially the extended breeding programs have obscured the original breeds associated with certain geographic areas. The purpose of this article was to evaluate the diversity of breeds within portugal, an area which has a large and diverse population of wild cattle. These cattle have the potential to shed light on original cattle populations in northern Africa.
Y chomosome specific markers have frequently been used to study human origins because the frequency and geographical distribution of Y-haplotypes provide insightful
information about migration and population relationships. Usually the practice of producing a large number of offspring from a small number of males within domesticated species results in a reduced Y chromosome diversity. The study discovered the presence of three distinct Y1 patrilines in continental native cattle which may well be remenents of aurochs, a very large type of cattle which awas present in europe until the 1600’s. The analysis of remains of aurochs in Germany, Italy and Sweeden confirm this hypothesis.
http://jhered.oxfordjournals.org.ezproxy.library.uq.edu.au/cgi/reprint/100/2/148
Cattle are one of the most overly domesticate animals on the planet and consequentially the extended breeding programs have obscured the original breeds associated with certain geographic areas. The purpose of this article was to evaluate the diversity of breeds within portugal, an area which has a large and diverse population of wild cattle. These cattle have the potential to shed light on original cattle populations in northern Africa.Y chomosome specific markers have frequently been used to study human origins because the frequency and geographical distribution of Y-haplotypes provide insightful
information about migration and population relationships. Usually the practice of producing a large number of offspring from a small number of males within domesticated species results in a reduced Y chromosome diversity. The study discovered the presence of three distinct Y1 patrilines in continental native cattle which may well be remenents of aurochs, a very large type of cattle which awas present in europe until the 1600’s. The analysis of remains of aurochs in Germany, Italy and Sweeden confirm this hypothesis.
http://jhered.oxfordjournals.org.ezproxy.library.uq.edu.au/cgi/reprint/100/2/148
Tom Kennedy
41299889
