Datum
2022-07-04Autor
Hameed, AsifSchlecht, EvaTariq, MuhammadBuerkert, AndreasScheper, CarstenKönig, SvenRoessler, ReginaSchlagwort
570 Biowissenschaften, Biologie 590 Tiere (Zoologie) Gilgit-BaltistanPakistanShimshālYakDomestikationGenetische VariabilitätSatelliten-DNSHeterozygotieMetadata
Zur Langanzeige
Aufsatz
Phenotypic and genetic diversity of domestic yak (Bos grunniens) in high-altitude rangelands of Gilgit-Baltistan, Pakistan
Zusammenfassung
Due to climate change, irrigated agriculture may become restricted in the mountain valleys in northern Pakistan in the future. Hence, the importance of yak (Bos grunniens) keeping in the mountain ranges as risk-mitigating strategy for mountain dwellers will potentially increase. However, little is known about the current status of the domestic yak in this region. We therefore used phenotypic characteristics and 13 microsatellite loci to determine the phenotypic differences and the level of genetic differentiation between populations of six valleys. Larger body measures and partially different physical appearance were observed in Shimshal and Khaplu yaks, especially when compared with yaks in the Chapurson valley. Overall, the mean observed heterozygosity was similar to the mean expected heterozygosity. Average genetic diversity was highest in the Hopar population and lowest in the Haramosh population. A low FIS value indicated that individuals were less related than expected under a model of random mating. Three distinct genetic clusters were found for the six yak populations under study. Genetic distances were largest between Shimshal and Khaplu populations, and lowest between populations of Phandar and Hopar. It is concluded that yaks of Shimshal, Khaplu and Haramosh valleys were genetically distinct from yak populations in Chapurson, Hopar and Phandar valleys, indicating that the free-range conditions and pastoral yak rearing system in the region have preserved the underlying genetic diversity of the yak populations.
Zitierform
In: Journal of Animal Breeding and Genetics Volume 139 / Issue 6 (2022-07-04) , S. 723-737 ; eissn:1439-0388Zitieren
@article{doi:10.17170/kobra-202210247020,
author={Hameed, Asif and Schlecht, Eva and Tariq, Muhammad and Buerkert, Andreas and Scheper, Carsten and König, Sven and Roessler, Regina},
title={Phenotypic and genetic diversity of domestic yak (Bos grunniens) in high-altitude rangelands of Gilgit-Baltistan, Pakistan},
journal={Journal of Animal Breeding and Genetics},
year={2022}
}
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2022-10-24T10:15:29Z 2022-10-24T10:15:29Z 2022-07-04 doi:10.17170/kobra-202210247020 http://hdl.handle.net/123456789/14211 eng Namensnennung-Nicht-kommerziell 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ genetic diversity microsatellites phenotypic diversity yaks 570 590 Phenotypic and genetic diversity of domestic yak (Bos grunniens) in high-altitude rangelands of Gilgit-Baltistan, Pakistan Aufsatz Due to climate change, irrigated agriculture may become restricted in the mountain valleys in northern Pakistan in the future. Hence, the importance of yak (Bos grunniens) keeping in the mountain ranges as risk-mitigating strategy for mountain dwellers will potentially increase. However, little is known about the current status of the domestic yak in this region. We therefore used phenotypic characteristics and 13 microsatellite loci to determine the phenotypic differences and the level of genetic differentiation between populations of six valleys. Larger body measures and partially different physical appearance were observed in Shimshal and Khaplu yaks, especially when compared with yaks in the Chapurson valley. Overall, the mean observed heterozygosity was similar to the mean expected heterozygosity. Average genetic diversity was highest in the Hopar population and lowest in the Haramosh population. A low FIS value indicated that individuals were less related than expected under a model of random mating. Three distinct genetic clusters were found for the six yak populations under study. Genetic distances were largest between Shimshal and Khaplu populations, and lowest between populations of Phandar and Hopar. It is concluded that yaks of Shimshal, Khaplu and Haramosh valleys were genetically distinct from yak populations in Chapurson, Hopar and Phandar valleys, indicating that the free-range conditions and pastoral yak rearing system in the region have preserved the underlying genetic diversity of the yak populations. open access Hameed, Asif Schlecht, Eva Tariq, Muhammad Buerkert, Andreas Scheper, Carsten König, Sven Roessler, Regina doi:10.1111/jbg.12730 Gilgit-Baltistan Pakistan Shimshāl Yak Domestikation Genetische Variabilität Satelliten-DNS Heterozygotie publishedVersion eissn:1439-0388 Issue 6 Journal of Animal Breeding and Genetics 723-737 Volume 139 false
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