Abstract
: Domestic buffalo and cattle are two extremely important livestock species in worldwide agricultural production. In this paper, to investigate genetic diversity and divergence among swamp buffalo, river buffalo and cattle, 30 microsatellite markers were screened on 168 individuals sampled from five populations. Substantial differences were observed among the three groups of animals with respect to allele frequency distribution, allele size and polymorphism. The cattle sample (Mongolian) showed significantly higher genetic variability (0.674 of gene diversity, p<0.01), and the swamp and river buffalo samples displayed similar degree of genetic variation (0.536 in swamp and 0.546 in river, p = 0.92). Results of both phylogenetic tree and multivariate analysis could distinguish three groups of animals, suggesting their deep evolutionary divergence. Additionally, using (δμ) 2 genetic distance, we estimated a divergence time of 1.7 million years between swamp and river buffalo that strongly supported distinct genetic origins for the two buffalo types.
Highlights
During the past decade the microsatellite has been widely used in population genetic studies of livestock species
Inferences on the basis of microsatellite variation have been demonstrated to be extremely useful for population clustering, genetic divergence estimation, animal domestication analysis, parentage testing and individual identification, and genetic resources conservation
Comparisons between closely related species enable us characterize the pattern of genetic variation and the genetic divergence in an evolutionary perspective
Summary
During the past decade the microsatellite has been widely used in population genetic studies of livestock species. Inferences on the basis of microsatellite variation have been demonstrated to be extremely useful for population clustering, genetic divergence estimation, animal domestication analysis, parentage testing and individual identification, and genetic resources conservation. Microsatellites are informative markers useful for investigating livestock genetic diversity and population relationships (Hoffmann et al, 2004).
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
