Morphological Approach to Genetic Variability of the Asiatic Wild Ass ( Equus hemionus ) Using Non-metric Skull Characters

The Asiatic wild ass ( Equus hemionus ) is a globally endangered large mammal threatened by competition with livestock, poaching as well as habitat fragmentation and loss. Because of these environmental stresses it can be assumed that the species suff ers from lower developmental...

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Main Authors: Davaa Lkhagvasuren, Nyamsuren Batsaikhan, Ravchig Samiya, Renate Schafberg, Anne Stubbe, Michael Stubbe, Hermann Ansorge
Format: Article
Language:English
Published: National University of Mongolia 2015-12-01
Series:Mongolian Journal of Biological Sciences
Subjects:
Online Access:http://mjbs.num.edu.mn/uploads/files/MJBS%20Volume%2013%20Number%201-2%20December%202015/PDF/mjbs-13,3-12-lkhagvasuren_2015.pdf
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author Davaa Lkhagvasuren
Nyamsuren Batsaikhan
Ravchig Samiya
Renate Schafberg
Anne Stubbe
Michael Stubbe
Hermann Ansorge
author_facet Davaa Lkhagvasuren
Nyamsuren Batsaikhan
Ravchig Samiya
Renate Schafberg
Anne Stubbe
Michael Stubbe
Hermann Ansorge
author_sort Davaa Lkhagvasuren
collection DOAJ
description The Asiatic wild ass ( Equus hemionus ) is a globally endangered large mammal threatened by competition with livestock, poaching as well as habitat fragmentation and loss. Because of these environmental stresses it can be assumed that the species suff ers from lower developmental stability and that barrier eff ects could cause genetic isolation. To gain more insight into the population genetics of the Asiatic wild ass, a series of 440 skulls found in two Gobi regions of Mongolia were examined. The epigenetic variability and epigenetic distance between the samples as well as their fl uctuating asymmetry were studied by using 62 non-metric skull characters to test and evaluate possible genetic depletion, genetic isolation and the general infl uences during ontogenesis. The high epigenetic variability, I ev = 0.39 did not diff er between the two regions indicating no evidence of genetic depression. The very low, but signifi cant epigenetic divergence of MMD = 0.05 between the Dzungarian Gobi and the Southern Gobi suggests restricted connectivity. The moderate degree of fl uctuating asymmetry (FA = 0.11 – 0.15) found gives no signs of reduced developmental stability. Thus, our results suggest that Asiatic wild ass from Mongolia are from genetically viable populations.
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spelling doaj.art-86f5bddc4eb64cc9848a8345b1086c9b2022-12-22T03:51:29ZengNational University of MongoliaMongolian Journal of Biological Sciences1684-39082225-49942015-12-01131-231210.22353/mjbs.2015.13.01Morphological Approach to Genetic Variability of the Asiatic Wild Ass ( Equus hemionus ) Using Non-metric Skull CharactersDavaa Lkhagvasuren0Nyamsuren Batsaikhan1Ravchig Samiya2 Renate Schafberg3Anne Stubbe4Michael Stubbe5Hermann Ansorge6Department of Biology, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 210646. MongoliaDepartment of Biology, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 210646. MongoliaDepartment of Biology, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 210646. MongoliaMuseum of Domesticated Animals “Julius Kühn”, Martin Luther University of Halle-Wittenberg, Adam- Kuckhoff -Str. 35, 06108 Halle, GermanyInstitute of Zoology, Martin Luther University of Halle-Wittenberg, Domplatz 4, 06099 Halle, GermanyInstitute of Zoology, Martin Luther University of Halle-Wittenberg, Domplatz 4, 06099 Halle, GermanySenckenberg Museum of Natural History of Görlitz, PF 300154, 02806 Görlitz, GermanyThe Asiatic wild ass ( Equus hemionus ) is a globally endangered large mammal threatened by competition with livestock, poaching as well as habitat fragmentation and loss. Because of these environmental stresses it can be assumed that the species suff ers from lower developmental stability and that barrier eff ects could cause genetic isolation. To gain more insight into the population genetics of the Asiatic wild ass, a series of 440 skulls found in two Gobi regions of Mongolia were examined. The epigenetic variability and epigenetic distance between the samples as well as their fl uctuating asymmetry were studied by using 62 non-metric skull characters to test and evaluate possible genetic depletion, genetic isolation and the general infl uences during ontogenesis. The high epigenetic variability, I ev = 0.39 did not diff er between the two regions indicating no evidence of genetic depression. The very low, but signifi cant epigenetic divergence of MMD = 0.05 between the Dzungarian Gobi and the Southern Gobi suggests restricted connectivity. The moderate degree of fl uctuating asymmetry (FA = 0.11 – 0.15) found gives no signs of reduced developmental stability. Thus, our results suggest that Asiatic wild ass from Mongolia are from genetically viable populations.http://mjbs.num.edu.mn/uploads/files/MJBS%20Volume%2013%20Number%201-2%20December%202015/PDF/mjbs-13,3-12-lkhagvasuren_2015.pdfAsiatic wild assepigenetic variabilityEquus hemionusfl uctuating asymmetrynon-metric skull characterspopulation geneticsSouthern Mongolia
spellingShingle Davaa Lkhagvasuren
Nyamsuren Batsaikhan
Ravchig Samiya
Renate Schafberg
Anne Stubbe
Michael Stubbe
Hermann Ansorge
Morphological Approach to Genetic Variability of the Asiatic Wild Ass ( Equus hemionus ) Using Non-metric Skull Characters
Mongolian Journal of Biological Sciences
Asiatic wild ass
epigenetic variability
Equus hemionus
fl uctuating asymmetry
non-metric skull characters
population genetics
Southern Mongolia
title Morphological Approach to Genetic Variability of the Asiatic Wild Ass ( Equus hemionus ) Using Non-metric Skull Characters
title_full Morphological Approach to Genetic Variability of the Asiatic Wild Ass ( Equus hemionus ) Using Non-metric Skull Characters
title_fullStr Morphological Approach to Genetic Variability of the Asiatic Wild Ass ( Equus hemionus ) Using Non-metric Skull Characters
title_full_unstemmed Morphological Approach to Genetic Variability of the Asiatic Wild Ass ( Equus hemionus ) Using Non-metric Skull Characters
title_short Morphological Approach to Genetic Variability of the Asiatic Wild Ass ( Equus hemionus ) Using Non-metric Skull Characters
title_sort morphological approach to genetic variability of the asiatic wild ass equus hemionus using non metric skull characters
topic Asiatic wild ass
epigenetic variability
Equus hemionus
fl uctuating asymmetry
non-metric skull characters
population genetics
Southern Mongolia
url http://mjbs.num.edu.mn/uploads/files/MJBS%20Volume%2013%20Number%201-2%20December%202015/PDF/mjbs-13,3-12-lkhagvasuren_2015.pdf
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