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Chinese Journal of Biological Control ›› 2023, Vol. 39 ›› Issue (3): 718-730.DOI: 10.16409/j.cnki.2095-039x.2023.05.004

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Visual System and Opsin in Insect

TANG Yanhong1,2, BI Siyan2, WANG Xiaodi2, MA Dongfang1, YANG Nianwan2,3, GUO Jianyang2, LÜ Zhichuang2, LIU Wanxue2   

  1. 1. Yangtze University, Jingzhou 434025, China;
    2. State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2022-01-17 Online:2023-06-08 Published:2023-06-25

Abstract: Insects have a well-developed and sensitive visual system, and opsin is a basic component of animal vision, and its structure largely determines the sensitivity of visual pigments to light of different wavelengths. The duplication and differentiation of opsin genes are the main mechanisms for the production of new light pigment sensitivity. Throughout the evolution of animals, many instances of opsin gene duplication and loss have occurred, forming the sensitivity of the various animal visual systems we observe today. In recent years, extensive and in-depth research has been carried out on visual proteins. This article describes the types of photoreceptors, the color vision system of insects, the classification of visual proteins, the phenomenon of co-expression of visual proteins, the duplication and deletion of visual protein genes, and the mechanism and research status of the physiological functions of visual proteins.

Key words: photoreceptor, opsin, vision system, molecular evolution

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