title: Proteomic analysis reveals that COP9 signalosome complex subunit 7A (CSN7A) is essential for the phase transition of migratory locust.
abstract: The migratory locust displays a reversible, density-dependent transition between the two phases of gregaria and solitaria. This phenomenon is a typical kind of behavior plasticity. Here, we report that COP9 signalosome complex subunit 7A (CSN7A) is involved in the regulation of locust phase transition. Firstly, 90 proteins were identified to express differentially between the two phases by quantitative proteomic analysis. Gregaria revealed higher levels in proteins related to structure formation, melanism and energy metabolism, whereas solitaria had more abundant proteins related to digestion, absorption and chemical sensing. Subsequently, ten proteins including CSN7A were found to reveal differential mRNA expression profiles between the two phases. The CSN7A had higher mRNA level in the gregaria as compared with the solitaria, and the mRNA amount in the gregaria decreased remarkably during the 32 h-isolation. However, the mRNA level in the solitaria kept constant during the crowding rearing. Finally and importantly, RNA interference of CSN7A in gregaria resulted in obvious phase transition towards solitaria within 24 h. It suggests that CSN7A plays an essential role in the transition of gregaria towards solitaria in the migratory locust. To our knowledge, it's the first time to report the role of CSN in behavior plasticity of animals.
authors.affiliation: 1] Guangdong Provincial Key Lab of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, China [2] State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101 China.
authors.forename: Xi-Wen
authors.initials: XW
authors.lastname: Tong
authors.affiliation: State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101 China.
authors.forename: Bing
authors.initials: B
authors.lastname: Chen
authors.affiliation: Guangdong Provincial Key Lab of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, China.
authors.forename: Li-Hua
authors.initials: LH
authors.lastname: Huang
authors.affiliation: Guangdong Provincial Key Lab of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, China.
authors.forename: Qi-Li
authors.initials: QL
authors.lastname: Feng
authors.affiliation: State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101 China.
authors.forename: Le
authors.initials: L
authors.lastname: Kang
mesh_terms: D025041:Animal Migration / Q000502:physiology*; D000818:Animals; D000075686:COP9 Signalosome Complex; D018507:Gene Expression Regulation, Developmental / Q000502:physiology; D008018:Life Cycle Stages / Q000502:physiology*; D048188:Locusta migratoria / Q000254:growth & development* / Q000378:metabolism*; D046912:Multiprotein Complexes; D010447:Peptide Hydrolases; D020543:Proteome / Q000378:metabolism*; D012919:Social Behavior
chemical_list: D046912:Multiprotein Complexes; D020543:Proteome; D010447:Peptide Hydrolases; D000075686:COP9 Signalosome Complex