Role of nubbin in the development of forewing sound-producing structures in Acheta domesticus (house cricket)

IF 2.4 3区环境科学与生态学 Q2 ECOLOGY

Frontiers in Ecology and Evolution Pub Date : 2024-07-12 DOI:10.3389/fevo.2024.1411228

Nataliya Turchyn, Aleksandar Popadić

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Abstract

Among insects, Orthoptera (crickets and grasshoppers) have evolved a set of highly specialized structures for acoustic communication, with males engaged in sound production and amplification (stridulation) and females in sound reception. These structures in males are located on their forewings, suggesting that some of the wing genes may have been co-opted for new roles in stridulation. As previous studies have identified nubbin (nub) as one of the key genes in the wing development network, we examined its function in the house cricket, Acheta domesticus. Our results show that nub regulates the overall size and venation of both fore- and hindwings in both sexes, consistent with its general role in wing development. Moreover, in males this gene is also involved in the development of sound resonators (primarily the harp, anal area, mirror, and chord). The distinct morphology of these structures is generated by either the activation (in the harp and anal area) or suppression (in the mirror and chord) of vein and cross-connection development in localized regions of the forewings. Finally, nub RNAi males do not stridulate, confirming that the observed changes in the morphology of resonators are functionally significant and responsible for the loss of sound production.

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萌点在家养蟋蟀前翅发声结构发育中的作用

在昆虫中，直翅目昆虫（蟋蟀和蚱蜢）进化出了一套高度特化的声学通讯结构，雄性参与声音的产生和放大（击弦），雌性参与声音的接收。雄性的这些结构位于它们的前翅上，这表明翅膀的一些基因可能已被用于在击弦中发挥新的作用。由于之前的研究发现 nubbin（nub）是翅膀发育网络中的关键基因之一，我们研究了它在家养蟋蟀（Acheta domesticus）中的功能。我们的研究结果表明，nub能调节雌雄蟋蟀前翅和后翅的整体大小和脉络，这与它在翅膀发育中的一般作用是一致的。此外，在雄性中，该基因还参与声音共鸣器（主要是竖琴、肛门区、镜子和和弦）的发育。这些结构的独特形态是通过激活（竖琴和肛区）或抑制（镜和弦）前翅局部区域的静脉和交叉连接发育而形成的。最后，nub RNAi 雄虫不会发出声音，这证实了所观察到的共鸣器形态变化具有重要的功能意义，是导致雄虫丧失发声能力的原因。

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来源期刊

Frontiers in Ecology and Evolution Environmental Science-Ecology

CiteScore

4.00

自引率

6.70%

发文量

1143

审稿时长

12 weeks

期刊介绍： Frontiers in Ecology and Evolution publishes rigorously peer-reviewed research across fundamental and applied sciences, to provide ecological and evolutionary insights into our natural and anthropogenic world, and how it should best be managed. Field Chief Editor Mark A. Elgar at the University of Melbourne is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics and the public worldwide. Eminent biologist and theist Theodosius Dobzhansky’s astute observation that “Nothing in biology makes sense except in the light of evolution” has arguably even broader relevance now than when it was first penned in The American Biology Teacher in 1973. One could similarly argue that not much in evolution makes sense without recourse to ecological concepts: understanding diversity — from microbial adaptations to species assemblages — requires insights from both ecological and evolutionary disciplines. Nowadays, technological developments from other fields allow us to address unprecedented ecological and evolutionary questions of astonishing detail, impressive breadth and compelling inference. The specialty sections of Frontiers in Ecology and Evolution will publish, under a single platform, contemporary, rigorous research, reviews, opinions, and commentaries that cover the spectrum of ecological and evolutionary inquiry, both fundamental and applied. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria. Through this unique, Frontiers platform for open-access publishing and research networking, Frontiers in Ecology and Evolution aims to provide colleagues and the broader community with ecological and evolutionary insights into our natural and anthropogenic world, and how it might best be managed.