Molecular basis of circadian rhythm divergence between diurnal and nocturnal lepidoperans

IF 4.6 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

iScience Pub Date : 2025-03-12 DOI:10.1016/j.isci.2025.112206

Guiyun Li , Qian Cui , Shirui Zheng , Kaixiang Zhang , Yaohui Wang , Shuai Zhan , Gangqi Fang

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引用次数: 0

Abstract

Understanding the molecular basis of nocturnal and diurnal behaviors is crucial to uncovering adaptive specialization. Here, we employed the black cutworm (Agrotis ipsilon, BCW) to examine the rhythmic gene repertoire in nocturnal species. Daily eclosion patterns confirmed BCW’s nocturnal behavior. We generated daily transcriptomes for BCW and compared them with those of the diurnal monarch butterfly (Danaus plexippus). Both species share a core set of genes with rhythmic expression, indicating a fundamental timekeeping mechanism in Lepidoptera. Notably, metabolism-related genes exhibited significant phase shifts between BCW and the monarch butterfly, suggesting that metabolic differences underpin their contrasting behaviors. Additionally, while phototransduction genes in monarch butterflies show marginal rhythmicity, in BCW these genes are governed by light sensitivity rather than circadian regulation. This study provides molecular insights into the diversification of behavioral traits between diurnal and nocturnal insects.

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来源期刊

iScience Multidisciplinary-Multidisciplinary

CiteScore

7.20

自引率

1.70%

发文量

1972

审稿时长

6 weeks

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