Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (16): 103-109.doi: 10.11924/j.issn.1000-6850.casb2021-0615

Special Issue: 生物技术 水产渔业

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Identification and Characterization of Opsin Genes from Thalassodes immissaria and Gene Expression After White LED Treatment

YAO Qiong(), QUAN Linfa, XU Shu, DONG Yizhi, LI Wenjing, CHI Yanyan, CHEN Bingxu()   

  1. Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Provincial Key Laboratory of New High Technology for Plant Protection, Guangzhou 510640
  • Received:2021-06-17 Online:2022-06-05 Published:2022-06-09
  • Contact: CHEN Bingxu E-mail:joanyao_0603@163.com;gzchenbx@163.com

Abstract:

Currently, lighting control technology is promoted in litchi and longan cultivation areas in China. To explore the impacts of the lighting control technology on litchi leaf looper, 2 opsin genes were cloned using RACE technology based on the transcriptome sequencing results from Thalassodes immissaria, and then expression changes of the 2 opsin genes were detected after light treatment to T. immissaria by RT-qPCR. The results showed that the open reading frames of TiLW and TiUV encoded 374 and 378 amino acids, respectively. Results of secondary structure analysis of the 2 opsin genes showed that both of them were mainly composed of α-helix and random coil and contained typical conserved domains of opsin family. The 2 opsin genes could be detected at different developmental stages of the whole development cycle, but their expression levels were different at different developmental stages. After light treatment, the expression levels of TiLW and TiUV in the head of adults were affected by different degrees. Compared with the control group, after the light treatment of 24 h, TiLW was increased by 12.96 times and decreased by 8.61 times in female and male heads, respectively, while TiUV was increased by 1.75 times and decreased by 3.10 times, respectively. The results of this study show that TiLW and TiUV are involved in the stress process of light stimulation, and light stimulation could cause changes in the expression of the two opsin genes.

Key words: Thalassodes immissaria, opsin, light stimulation, light interference technology, sequence analysis, gene expression

CLC Number: