To each their own: the diversity of primary sex determination signals in insects.

IF 4.8 1区农林科学 Q1 BIOLOGY

Current opinion in insect science Pub Date : 2025-07-23 DOI:10.1016/j.cois.2025.101414

Filippo Guerra, Eveline C Verhulst

引用次数: 0

Abstract

In insects, sex is defined via a cascade of signals constituted by an initial primary signal, an autoregulatory signal and an actuator that causes sexual differentiation. The cascade is conserved at the level of the actuator, Doublesex, whilst primary signals are hypervariable. These primary sex-determination signals evolve and diversify under the pressure of environmental and genomic forces and within the context of the diverse insect sex-determination systems. We report the known primary sex-determination signals and provide an overview of the forces that drive their evolution. We highlight that closely related species can have different primary sex determination signals, yet these are often functionally conserved in either kick-starting (loop starters) or interrupting (loop breakers) the default sex determination cascade.

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各取所需：昆虫主要性别决定信号的多样性。

在昆虫中，性别是通过一系列信号来定义的，这些信号由一个初始的初级信号、一个自动调节信号和一个导致性别分化的致动器组成。级联在执行器的水平上是保守的，双性的，而主信号是超变量的。这些主要的性别决定信号在环境和基因组力量的压力下以及在多种昆虫性别决定系统的背景下进化和多样化。我们报告了已知的主要性别决定信号，并提供了推动其进化的力量的概述。我们强调，近亲物种可能有不同的主要性别决定信号，但这些信号通常在启动（循环启动者）或中断（循环断路器）默认性别决定级联中功能保守。

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.