磷酸化
差速器(机械装置)
生物
细胞生物学
预警系统
神经科学
计算机科学
物理
电信
热力学
作者
Xin-Le Kang,Meiling Yang,Xiaoshuang Cui,Sheng Wang,Le Kang
出处
期刊:Science Advances
[American Association for the Advancement of Science (AAAS)]
日期:2023-08-23
卷期号:9 (34)
被引量:3
标识
DOI:10.1126/sciadv.adi5168
摘要
Warning coloration are common defense strategies used by animals to deter predators. Pestilential gregarious locusts exhibit a notable black-brown pattern as a form of warning coloration. However, the mechanisms regulating this distinctive pattern remain largely unknown. Here, we revealed that the black and brown integuments of locusts are governed by varying amounts of β-carotene and β-carotene-binding protein (βCBP) complexes. βCBP expression is regulated by the bZIP transcription factor activation transcription factor 2 (ATF2), which is activated by protein kinase C alpha in response to crowding. Specifically, ATF2 is phosphorylated at Ser327 and translocates to the nucleus, where it binds to the βCBP promoter and stimulates overexpression. Differential phosphorylation of ATF2 leads to the divergent black and brown coloration in gregarious locusts. The accumulation of red pigments vital for creating the brown sternum depends on βCBP overexpression. The spatial variation in ATF2 phosphorylation enables locusts to rapidly adapt to changing environment for aposematism.
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