Crosstalk between environmental factors and sex determination pathway: Insights from lepidopteran insects and cladoceran crustaceans.

IF 5.8 1区农林科学 Q1 BIOLOGY

Current opinion in insect science Pub Date : 2025-06-19 DOI:10.1016/j.cois.2025.101403

Yasuhiko Kato, Hajime Watanabe

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引用次数: 0

Abstract

Insects exhibit a remarkable diversity of sex-determination systems. Sex-determining mechanisms have been extensively analyzed using the genetic model insects, such as Drosophila melanogaster, revealing that insect sex is determined in a cell-autonomous manner. The sexual identity of each cell is governed by the conserved transcription factor Doublesex, while the regulatory mechanisms controlling its expression are species-specific. In contrast, our understanding of how environmental factors modulate the sex determination pathway remains limited. In this review, we summarize recent discoveries on the crosstalk between environmental factors and sex determination pathways in the lepidopteran insects and the cladoceran crustaceans, which are closely related to insects. We discuss how the symbiotic bacterium Wolbachia hijacks the host WZ/ZZ sex determination pathway in the lepidopteran Ostrinia furnacalis. In addition, we highlight how males that are genetically identical to females are produced in response to environmental stimuli in the cladoceran crustacean Daphnia magna. Based on these findings, we explore the evolutionary, ecological, and applied implications of the molecular mechanisms underlying environmentally influenced sex determination.

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环境因素与性别决定途径之间的串扰：来自鳞翅目昆虫和枝海洋甲壳类动物的启示。

昆虫表现出显著的性别决定系统的多样性。性别决定机制已被广泛分析，使用遗传模式昆虫，如黑腹果蝇，揭示昆虫性别是由细胞自主方式决定的。每个细胞的性别身份都是由保守的转录因子double - esex控制的，而控制其表达的调节机制是物种特异性的。相比之下，我们对环境因素如何调节性别决定途径的理解仍然有限。本文综述了鳞翅目昆虫和枝海甲壳类昆虫中环境因子与性别决定途径之间的串扰的最新发现。我们讨论了共生细菌沃尔巴克氏体如何劫持鳞翅目Ostrinia furnacalis的宿主WZ/ZZ性别决定途径。此外，我们强调了在进化纲甲壳类动物大水蚤中，与雌性基因相同的雄性是如何在环境刺激下产生的。基于这些发现，我们探讨了环境影响下性别决定的分子机制的进化、生态和应用意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Current opinion in insect science BIOLOGYECOLOGYENTOMOLOGY-ECOLOGY

CiteScore

10.40

自引率

1.90%

发文量

113

期刊介绍： Current Opinion in Insect Science is a new systematic review journal that aims to provide specialists with a unique and educational platform to keep up–to–date with the expanding volume of information published in the field of Insect Science. As this is such a broad discipline, we have determined themed sections each of which is reviewed once a year. The following 11 areas are covered by Current Opinion in Insect Science. -Ecology -Insect genomics -Global Change Biology -Molecular Physiology (Including Immunity) -Pests and Resistance -Parasites, Parasitoids and Biological Control -Behavioural Ecology -Development and Regulation -Social Insects -Neuroscience -Vectors and Medical and Veterinary Entomology There is also a section that changes every year to reflect hot topics in the field. Section Editors, who are major authorities in their area, are appointed by the Editors of the journal. They divide their section into a number of topics, ensuring that the field is comprehensively covered and that all issues of current importance are emphasized. Section Editors commission articles from leading scientists on each topic that they have selected and the commissioned authors write short review articles in which they present recent developments in their subject, emphasizing the aspects that, in their opinion, are most important. In addition, they provide short annotations to the papers that they consider to be most interesting from all those published in their topic over the previous year.