Effects of global warming on species with temperature-dependent sex determination: Bridging the gap between empirical research and management.

Effects of global warming on species with temperature-dependent sex determination: Bridging the gap between empirical research and management.
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DOI:
10.1111/eva.13226
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发表时间:
2021-10
影响因子:
4.1
通讯作者:
Eizaguirre C
Eizaguirre C
中科院分区:
生物学2区
文献类型:
--
作者:
Lockley EC;Eizaguirre C

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全球变暖可能会威胁到全球400多个物种的温度依赖性性别决定(TSD),包括所有种类的海龟。在胚胎发育期间,温度升高可能导致一种性别的过度生产,反过来可能使种群的性别比例出现偏差,威胁到其持续性。如果气候变化的预测是正确的,并且有偏见的性别比例降低了种群的生存能力,那么患有TSD的物种可能会迅速灭绝,除非存在适应机制,无论是行为,生理还是分子,来缓冲这些温度驱动的影响。在这里,我们总结了TSD现象的发现及其仍然难以捉摸的进化意义。然后,我们回顾了模式物种中TSD的分子途径,沿着与温度相互作用以确定个体性别的激素机制。为了说明进化机制,可以影响性别决定,我们专注于海龟生物学,讨论这两个受威胁的TSD分类群的适应潜力,以及与保护管理不善的风险。
Global warming could threaten over 400 species with temperature‐dependent sex determination (TSD) worldwide, including all species of sea turtle. During embryonic development, rising temperatures might lead to the overproduction of one sex and, in turn, could bias populations’ sex ratios to an extent that threatens their persistence. If climate change predictions are correct, and biased sex ratios reduce population viability, species with TSD may go rapidly extinct unless adaptive mechanisms, whether behavioural, physiological or molecular, exist to buffer these temperature‐driven effects. Here, we summarize the discovery of the TSD phenomenon and its still elusive evolutionary significance. We then review the molecular pathways underpinning TSD in model species, along with the hormonal mechanisms that interact with temperatures to determine an individual's sex. To illustrate evolutionary mechanisms that can affect sex determination, we focus on sea turtle biology, discussing both the adaptive potential of this threatened TSD taxon, and the risks associated with conservation mismanagement.
DOI: 10.1002/jez.2183
发表时间: 2018-04
期刊: Journal of experimental zoology. Part A, Ecological and integrative physiology
影响因子: --
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