Temperature Drives the Evolutionary Diversification of Male Harm in Drosophila melanogaster Flies

IF 7.9 1区 环境科学与生态学 Q1 ECOLOGY
Ecology Letters Pub Date : 2025-03-20 DOI:10.1111/ele.70102
Claudia Londoño-Nieto, Michael Butler-Margalef, Roberto García-Roa, Pau Carazo
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引用次数: 0

Abstract

Sexual selection often leads to sexual conflict via pre-copulatory (harassment) and/or copulatory (traumatic insemination) male harm to females, impacting population growth, adaptation and evolutionary rescue. Male harm mechanisms are diverse and taxonomically widespread, but we largely ignore what ecological factors modulate their diversification. Here, we conducted experimental evolution under low- (20°C ± 4°C), moderate- (24°C ± 4°C) and high-temperature (28°C ± 4°C) regimes in Drosophila melanogaster, a species with male harm via harassment and seminal fluid proteins (SFPs), to show that temperature drives the divergent evolution of sexual conflict. At the low-temperature regime, evolution resulted in reduced and less plastic harassment (i.e., pre-copulatory harm) while at the high-temperature regime, it was characterised by responses in the seminal proteome driven by differential expression of SFPs. Our results suggest that temperature can be key to understanding the past diversification and future (global warming) evolution of sexual conflict, and the maintenance of genetic variation in male harm traits.

Abstract Image

Abstract Image

温度驱动黑腹果蝇雄性伤害的进化多样化
性选择往往通过交配前(骚扰)和/或交配时(创伤性授精)雄性对雌性的伤害导致性冲突,影响种群的增长、适应和进化拯救。男性伤害机制多样,分类广泛,但我们在很大程度上忽视了生态因素对其多样性的调节作用。在这里,我们在低温(20°C±4°C)、中低温(24°C±4°C)和高温(28°C±4°C)环境下对果蝇(一种通过骚扰和精液蛋白(SFPs)对雄性造成伤害的物种)进行了实验进化,以表明温度驱动性冲突的分化进化。在低温环境下,进化导致减少和减少可塑性骚扰(即交配前伤害),而在高温环境下,进化的特征是由SFPs的差异表达驱动的精液蛋白质组的反应。我们的研究结果表明,温度可能是理解性别冲突的过去多样化和未来(全球变暖)演变的关键,以及男性伤害特征遗传变异的维持。
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来源期刊
Ecology Letters
Ecology Letters 环境科学-生态学
CiteScore
17.60
自引率
3.40%
发文量
201
审稿时长
1.8 months
期刊介绍: Ecology Letters serves as a platform for the rapid publication of innovative research in ecology. It considers manuscripts across all taxa, biomes, and geographic regions, prioritizing papers that investigate clearly stated hypotheses. The journal publishes concise papers of high originality and general interest, contributing to new developments in ecology. Purely descriptive papers and those that only confirm or extend previous results are discouraged.
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