Ancestral variations in the shape and size of the zygoma
The variable development of the zygoma, dictating its shape and size variations among ancestral groups, has important clinical implications and valuable anthropological and evolutionary inferences. The purpose of the study was to review the literature regarding the variations in the zygoma with ance...
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ftunivpretoria:oai:repository.up.ac.za:2263/58614 2023-05-15T15:00:02+02:00 Ancestral variations in the shape and size of the zygoma Oettle, Anna Catherina Demeter, F.P. (Fabrice) L'Abbe, Ericka Noelle 2017-01-25T06:59:03Z http://hdl.handle.net/2263/58614 https://doi.org/10.1002/ar.23469 en eng Wiley http://hdl.handle.net/2263/58614 Oettlé, AC, Demeter, FP & L'abbé, EN 2017, 'Ancestral variations in the shape and size of the zygoma', Anatomical Record, vol. 300, no. 1, pp. 196-203. 1932-8486 (print) 1932-8494 (online) doi:10.1002/ar.23469 © 2016 Wiley Periodicals, INC. This is the pre-peer reviewed version of the following article : Ancestral variations in the shape and size of the zygoma, Anatomical Record, vol. 300, no. 1, pp. 196-203,2017. doi : 10.1002/ar.23469. The definite version is available at : http://onlinelibrary.wiley.comjournal/10.1002/(ISSN)1932-8494. Evolution Malar prominence Zygomaxillary tuberosity Malar tubercle Native American Zygoma Postprint Article 2017 ftunivpretoria https://doi.org/10.1002/ar.23469 2022-05-31T13:19:23Z The variable development of the zygoma, dictating its shape and size variations among ancestral groups, has important clinical implications and valuable anthropological and evolutionary inferences. The purpose of the study was to review the literature regarding the variations in the zygoma with ancestry. Ancestral variation in the zygoma reflects genetic variations because of genetic drift as well as natural selection and epigenetic changes to adapt to diet and climate variations with possible intensification by isolation. Prominence of the zygoma, zygomaxillary tuberosity, and malar tubercle have been associated with Eastern Asian populations in whom these features intensified. Prominence of the zygoma is also associated with groups from Eastern Europe and the rest of Asia. Diffusion of these traits occurred across the Behring Sea to the Arctic areas and to North and South America. The greatest zygomatic projections are exhibited in Arctic groups as an adaptation to extreme cold conditions, while Native South American groups also present with other features of facial robusticity. Groups from Australia, Malaysia, and Oceania show prominence of the zygoma to a certain extent, possibly because of archaic occupations by undifferentiated Southeast Asian populations. More recent interactions with Chinese groups might explain the prominent cheekbones noted in certain South African groups. Many deductions regarding evolutionary processes and diversifications of early groups have been made. Cognisance of these ancestral variations also have implications for forensic anthropological assessments as well as plastic and reconstructive surgery. More studies are needed to improve accuracy of forensic anthropological identification techniques. http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1932-8494 2018-01-31 hb2017 Anatomy Article in Journal/Newspaper Arctic University of Pretoria: UPSpace Arctic The Anatomical Record 300 1 196 208 |
institution |
Open Polar |
collection |
University of Pretoria: UPSpace |
op_collection_id |
ftunivpretoria |
language |
English |
topic |
Evolution Malar prominence Zygomaxillary tuberosity Malar tubercle Native American Zygoma |
spellingShingle |
Evolution Malar prominence Zygomaxillary tuberosity Malar tubercle Native American Zygoma Oettle, Anna Catherina Demeter, F.P. (Fabrice) L'Abbe, Ericka Noelle Ancestral variations in the shape and size of the zygoma |
topic_facet |
Evolution Malar prominence Zygomaxillary tuberosity Malar tubercle Native American Zygoma |
description |
The variable development of the zygoma, dictating its shape and size variations among ancestral groups, has important clinical implications and valuable anthropological and evolutionary inferences. The purpose of the study was to review the literature regarding the variations in the zygoma with ancestry. Ancestral variation in the zygoma reflects genetic variations because of genetic drift as well as natural selection and epigenetic changes to adapt to diet and climate variations with possible intensification by isolation. Prominence of the zygoma, zygomaxillary tuberosity, and malar tubercle have been associated with Eastern Asian populations in whom these features intensified. Prominence of the zygoma is also associated with groups from Eastern Europe and the rest of Asia. Diffusion of these traits occurred across the Behring Sea to the Arctic areas and to North and South America. The greatest zygomatic projections are exhibited in Arctic groups as an adaptation to extreme cold conditions, while Native South American groups also present with other features of facial robusticity. Groups from Australia, Malaysia, and Oceania show prominence of the zygoma to a certain extent, possibly because of archaic occupations by undifferentiated Southeast Asian populations. More recent interactions with Chinese groups might explain the prominent cheekbones noted in certain South African groups. Many deductions regarding evolutionary processes and diversifications of early groups have been made. Cognisance of these ancestral variations also have implications for forensic anthropological assessments as well as plastic and reconstructive surgery. More studies are needed to improve accuracy of forensic anthropological identification techniques. http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1932-8494 2018-01-31 hb2017 Anatomy |
format |
Article in Journal/Newspaper |
author |
Oettle, Anna Catherina Demeter, F.P. (Fabrice) L'Abbe, Ericka Noelle |
author_facet |
Oettle, Anna Catherina Demeter, F.P. (Fabrice) L'Abbe, Ericka Noelle |
author_sort |
Oettle, Anna Catherina |
title |
Ancestral variations in the shape and size of the zygoma |
title_short |
Ancestral variations in the shape and size of the zygoma |
title_full |
Ancestral variations in the shape and size of the zygoma |
title_fullStr |
Ancestral variations in the shape and size of the zygoma |
title_full_unstemmed |
Ancestral variations in the shape and size of the zygoma |
title_sort |
ancestral variations in the shape and size of the zygoma |
publisher |
Wiley |
publishDate |
2017 |
url |
http://hdl.handle.net/2263/58614 https://doi.org/10.1002/ar.23469 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://hdl.handle.net/2263/58614 Oettlé, AC, Demeter, FP & L'abbé, EN 2017, 'Ancestral variations in the shape and size of the zygoma', Anatomical Record, vol. 300, no. 1, pp. 196-203. 1932-8486 (print) 1932-8494 (online) doi:10.1002/ar.23469 |
op_rights |
© 2016 Wiley Periodicals, INC. This is the pre-peer reviewed version of the following article : Ancestral variations in the shape and size of the zygoma, Anatomical Record, vol. 300, no. 1, pp. 196-203,2017. doi : 10.1002/ar.23469. The definite version is available at : http://onlinelibrary.wiley.comjournal/10.1002/(ISSN)1932-8494. |
op_doi |
https://doi.org/10.1002/ar.23469 |
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