期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 289, 期 1968, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rspb.2021.1918
关键词
sour; evolution; taste; acidity; fermentation
资金
- CIFAR's 'Humans and the Microbiome' programme
The evolutionary history of sour taste has been little studied. Based on trait mapping on the vertebrate phylogenetic tree, sour taste is inferred to have originated in ancient fish and appears to be aversive in most species. The preference for sour taste in humans and a few other animals remains an intriguing subject for investigation.
The evolutionary history of sour taste has been little studied. Through a combination of literature review and trait mapping on the vertebrate phylogenetic tree, we consider the origin of sour taste, potential cases of the loss of sour taste, and those factors that might have favoured changes in the valence of sour taste-from aversive to appealing. We reconstruct sour taste as having evolved in ancient fish. By contrast to other tastes, sour taste does not appear to have been lost in any major vertebrate taxa. For most species, sour taste is aversive. Animals, including humans, that enjoy the sour taste triggered by acidic foods are exceptional. We conclude by considering why sour taste evolved, why it might have persisted as vertebrates made the transition to land and what factors might have favoured the preference for sour-tasting, acidic foods, particularly in hominins, such as humans.
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