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Taste preference in nonhuman primates to compounds sweet in man
1Anthropological Institute, University of Zurich, Zürich-Irchel, Switzerland. dkglaser@aim.unizh.ch
Annals of the New York Academy of Sciences
|February 4, 1999
Summary
This study classifies primate sweetness receptors into four types based on behavioral responses to sweet compounds. Callitrichidae (marmosets and tamarins) possess the most primitive sweetness receptor, offering insights into primate evolution.
Area of Science:
- Primate sensory biology
- Evolutionary biology
- Chemosensation
Background:
- Human and nonhuman primate gustatory responses to various sweet compounds have been documented.
- A rational, comparative framework for primate sweetness perception has been lacking.
Purpose of the Study:
- To classify primate sweetness receptors using structure-activity relationship studies.
- To investigate the evolutionary implications of sweetness receptor diversity in primates.
Main Methods:
- Behavioral responses of various primate groups to selected sweet compounds were observed.
- Structure-activity relationships were analyzed to infer receptor types.
- Putative receptor recognition sites were compared across primate infraorders and suborders.
Main Results:
- Four distinct primate sweetness receptor types were identified, corresponding to Callitrichidae, Cebidae, Lemuridae/Lorisidae, and Catarrhini (including humans).
- The Callitrichidae family (marmosets, tamarins) exhibits the most primitive sweetness receptor.
- This classification provides a framework for understanding primate gustatory evolution.
Conclusions:
- The evolution of sweetness receptors may reflect the phylogenetic progression of primates from 'primitive' to 'simian' grades.
- Comparative analysis of primate sweetness receptors offers insights into evolutionary pathways and sensory adaptations.