Genetic analysis of southern African gemsbok (Oryx gazella) reveals high variability, distinct lineages and strong divergence from the East African Oryx beisa. Osmers, B., Petersen, B., Hartl, G. B., Grobler, Paul, J., Kotze, A., Aswegen, E. V., & Zachos, F. E. Mammalian Biology - Zeitschrift für Säugetierkunde, 77(1):60--66, January, 2012. 00003![Genetic analysis of southern African gemsbok (Oryx gazella) reveals high variability, distinct lineages and strong divergence from the East African Oryx beisa [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex We carried out a population genetic analysis of five southern African gemsbok (Oryx gazella) populations based on 530\ bp of the mitochondrial control region and ten microsatellites in 75 individuals. Both markers show the high variability often observed in African bovids. Three of the populations which can be traced back to very small founding or current sizes do not show any signs of reduced variability compared to the remaining populations. The mitochondrial haplotypes form three distinct lineages which most likely originated in the Pleistocene when climate fluctuations led to periodical reduction and spreading of gemsbok habitat and which, today, are found throughout the distribution range. Bayesian microsatellite analyses yielded two groups, suggesting a more recent geographical differentiation following the admixture of the mtDNA lineages. Combining our sequences with available published data of the remaining oryx species allowed for a direct molecular comparison of O. gazella and O. beisa which have sometimes been considered a single species. The average genetic divergence between haplotypes from the two taxa was very high (39.9%), supporting their classification into two different species.
@article{ osmers_genetic_2012,
title = {Genetic analysis of southern African gemsbok (Oryx gazella) reveals high variability, distinct lineages and strong divergence from the East African Oryx beisa},
volume = {77},
issn = {1616-5047},
url = {http://www.sciencedirect.com/science/article/pii/S1616504711001054},
doi = {10.1016/j.mambio.2011.08.003},
abstract = {We carried out a population genetic analysis of five southern African gemsbok (Oryx gazella) populations based on 530\ bp of the mitochondrial control region and ten microsatellites in 75 individuals. Both markers show the high variability often observed in African bovids. Three of the populations which can be traced back to very small founding or current sizes do not show any signs of reduced variability compared to the remaining populations. The mitochondrial haplotypes form three distinct lineages which most likely originated in the Pleistocene when climate fluctuations led to periodical reduction and spreading of gemsbok habitat and which, today, are found throughout the distribution range. Bayesian microsatellite analyses yielded two groups, suggesting a more recent geographical differentiation following the admixture of the {mtDNA} lineages. Combining our sequences with available published data of the remaining oryx species allowed for a direct molecular comparison of O. gazella and O. beisa which have sometimes been considered a single species. The average genetic divergence between haplotypes from the two taxa was very high (39.9%), supporting their classification into two different species.},
number = {1},
urldate = {2012-03-01TZ},
journal = {Mammalian Biology - Zeitschrift für Säugetierkunde},
author = {Osmers, Bennie and Petersen, Britt-Sabina and Hartl, Günther B. and Grobler, J. Paul and Kotze, Antoinette and Van Aswegen, Elzet and Zachos, Frank E.},
month = {January},
year = {2012},
note = {00003},
keywords = {Bovidae, Oryx gazella, Southern Africa, microsatellites, mitochondrial {DNA}},
pages = {60--66}
}
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Three of the populations which can be traced back to very small founding or current sizes do not show any signs of reduced variability compared to the remaining populations. The mitochondrial haplotypes form three distinct lineages which most likely originated in the Pleistocene when climate fluctuations led to periodical reduction and spreading of gemsbok habitat and which, today, are found throughout the distribution range. Bayesian microsatellite analyses yielded two groups, suggesting a more recent geographical differentiation following the admixture of the mtDNA lineages. Combining our sequences with available published data of the remaining oryx species allowed for a direct molecular comparison of O. gazella and O. beisa which have sometimes been considered a single species. 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Both markers show the high variability often observed in African bovids. Three of the populations which can be traced back to very small founding or current sizes do not show any signs of reduced variability compared to the remaining populations. The mitochondrial haplotypes form three distinct lineages which most likely originated in the Pleistocene when climate fluctuations led to periodical reduction and spreading of gemsbok habitat and which, today, are found throughout the distribution range. Bayesian microsatellite analyses yielded two groups, suggesting a more recent geographical differentiation following the admixture of the {mtDNA} lineages. Combining our sequences with available published data of the remaining oryx species allowed for a direct molecular comparison of O. gazella and O. beisa which have sometimes been considered a single species. 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