Cross-sexual Transfer Revisited
Cross-sexual Transfer Revisited
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DOI：
10.1093/icb/icad021
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发表时间：
2023-05-05
影响因子：
2.6
通讯作者：
Falk, Jay Jinsing
中科院分区：
文献类型：
--
作者：
Anderson, Andrew P.;Falk, Jay Jinsing
在她颇具影响力的著作《发育可塑性与进化》中，玛丽·简·韦斯特-埃伯哈德介绍了跨性别转移的概念，即祖先物种中一种性别表达的特征会在另一种性别中表达。尽管它可能无处不在，但我们发现，在文献中，对变性的研究和引用都不足，只有少数实验论文援引了这个概念。在这里，我们的目标是重新引入跨性别转移作为解释性别变异的一个强有力的框架，并强调其在当前性异型性（性别之间特征值的不同手段或模式）进化研究中的相关性。我们在West-Eberhard的广泛综述的基础上，讨论了过去二十年来发表的几项关于跨性别转移的典型研究。我们强调两种可能的研究途径，在性别多态和性别角色逆转的物种中，并讨论了进化和适应的意义。最后，我们提出了未来的问题，以扩大我们对跨性别转移的理解，从非激素机制到广泛分类模式的识别。随着进化生物学家越来越多地认识到性别异型性的非二元性和连续性，跨性别框架对于在不同分类群的性别表型进化中产生新的见解和观点具有重要的实用价值。
In her influential book "Developmental Plasticity and Evolution," Mary Jane West-Eberhard introduced the concept of cross-sexual transfer, where traits expressed in one sex in an ancestral species become expressed in the other sex. Despite its potential ubiquity, we find that cross-sexual transfer has been under-studied and under-cited in the literature, with only a few experimental papers that have invoked the concept. Here, we aim to reintroduce cross-sexual transfer as a powerful framework for explaining sex variation and highlight its relevance in current studies on the evolution of sexual heteromorphism (different means or modes in trait values between the sexes). We discuss several exemplary studies of cross-sexual transfer that have been published in the past two decades, further building on West-Eberhard's extensive review. We emphasize two scenarios as potential avenues of study, within-sex polymorphic and sex-role reversed species, and discuss the evolutionary and adaptive implications. Lastly, we propose future questions to expand our understanding of cross-sexual transfer, from nonhormonal mechanisms to the identification of broad taxonomic patterns. As evolutionary biologists increasingly recognize the nonbinary and often continuous nature of sexual heteromorphism, the cross-sexual framework has important utility for generating novel insights and perspectives on the evolution of sexual phenotypes across diverse taxa.