共同进化
生物
军备竞赛
进化生物学
对抗性共同进化
捕食
非生物成分
生态学
表型
毒素
河豚毒素
动物
基因
遗传学
性别选择
性冲突
经济史
历史
生物物理学
作者
Gary M. Bucciarelli,Farid Alsalek,Lee B. Kats,D B Green,H. Bradley Shaffer
出处
期刊:Annual Review of Animal Biosciences
[Annual Reviews]
日期:2022-02-15
卷期号:10 (1): 63-80
被引量:7
标识
DOI:10.1146/annurev-animal-013120-024716
摘要
Toxin evolution in animals is one of the most fascinating and complex subjects of scientific inquiry today. Gaining an understanding of toxins poses a multifaceted challenge given the diverse modes of acquisition, evolutionary adaptations, and abiotic components that affect toxin phenotypes. Here, we highlight some of the main genetic and ecological factors that influence toxin evolution and discuss the role of antagonistic interactions and coevolutionary dynamics in shaping the direction and extent of toxicity and resistance in animals. We focus on toxic Pacific newts (family Salamandridae, genus Taricha) as a system to investigate and better evaluate the widely distributed toxin they possess, tetrodotoxin (TTX), and the hypothesized model of arms-race coevolution with snake predators that is used to explain phenotypic patterns of newt toxicity. Finally, we propose an alternative coevolutionary model that incorporates TTX-producing bacteria and draws from an elicitor-receptor concept to explain TTX evolution and ecology.
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