Talon cusp expression in Cayo Santiago rhesus macaques (Macaca mulatta).
dental
incisors
morphogenesis
morphology
teeth
Journal
American journal of biological anthropology
ISSN: 2692-7691
Titre abrégé: Am J Biol Anthropol
Pays: United States
ID NLM: 101770171
Informations de publication
Date de publication:
03 Oct 2023
03 Oct 2023
Historique:
revised:
08
09
2023
received:
29
06
2023
accepted:
19
09
2023
medline:
3
10
2023
pubmed:
3
10
2023
entrez:
3
10
2023
Statut:
aheadofprint
Résumé
This brief communication documents the prevalence of maxillary central incisor talon cusps in Cayo Santiago rhesus monkeys (Macaca mulatta) and assesses whether talon cusp presence occurs at equivalent frequencies across matrilines. The data on cusp presence vs. absence were analyzed by logistic regression in 170 monkeys (82 females, 78 males) from seven different matrilines. Sample sizes per matriline ranged from 10 to 42. Observations of talon cusps were blind with respect to matriline and sex. Talon cusps were present in 9.4% of the sample. By matriline, cusp frequencies ranged from 0%-Matrilines 073 and 106%-to 19.1% in Matriline 076. The frequency of the talon cusp in Matriline 076 was significantly greater than the frequency of the cusp in the remainder of the sample. There was no statistically significant difference in the frequency of the talon cusp by sex. This study suggests that the talon cusp in rhesus monkeys, as in humans and baboons, is a rare trait. Elevated prevalence of the talon cusp in Matriline 076 suggests the possibility of a genetic influence on talon cusp expression.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : National Science Foundation, National Institutes of Health
Organisme : National Institutes of Health NIH contracts
ID : NIH 5P40OD012217
Organisme : NSF grants
ID : NSF 1926601
Organisme : NSF grants
ID : NSF 1926481
Organisme : NSF grants
ID : NSF 1926402
Organisme : NSF grants
ID : NSF 1926528
Informations de copyright
© 2023 The Authors. American Journal of Biological Anthropology published by Wiley Periodicals LLC.
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