19 research outputs found
On the Origin of Indonesian Cattle
Background: Two bovine species contribute to the Indonesian livestock, zebu (Bos indicus) and banteng (Bos javanicus), respectively. Although male hybrid offspring of these species is not fertile, Indonesian cattle breeds are supposed to be of mixed species origin. However, this has not been documented and is so far only supported by preliminary molecular analysis. Methods and Findings: Analysis of mitochondrial, Y-chromosomal and microsatellite DNA showed a banteng introgression of 10-16% in Indonesian zebu breeds. East-Javanese Madura and Galekan cattle have higher levels of autosomal banteng introgression (20-30%) and combine a zebu paternal lineage with a predominant (Madura) or even complete (Galekan) maternal banteng origin. Two Madura bulls carried taurine Y-chromosomal haplotypes, presumably of French Limousin origin. In contrast, we did not find evidence for zebu introgression in five populations of the Bali cattle, a domestic form of the banteng. Conclusions: Because of their unique species composition Indonesian cattle represent a valuable genetic resource, which potentially may also be exploited in other tropical regions. © 2009 Mohamad et al
Y-chromomal sequence variation diagnostic for indicine and Y1 and Y2 taurine haplotypes.
*<p>Corresponding to the <i>Bfa</i>I site in banteng.</p><p>Database entries and the numbering refer to sequences from taurine cattle.</p
NeighborNet graph of genetic distances of Indonesian cattle populations.
<p>The animal pictures are from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0005490#pone.0005490-Felius1" target="_blank">[8]</a> or were drawn from photographs.</p
Genetic constitution of Indonesian and Indian cattle breeds.
*<p>from the q value (Pritchard <i>et al.</i>, 2000) after analysis with Indian zebus and Bali cattle as predefined clusters.</p
Locations of sampling and genetic constitution of Indonesian cattle populations.
<p>The species origin of the Y-chromosomes (Y), mitochondrial DNA (mt) and autosomal microsatellite alleles (ÎĽst) is represented by brown and gray shading of the indicated circle segments.</p