Welcome to visit Scientia Silvae Sinicae,Today is

Scientia Silvae Sinicae ›› 2022, Vol. 58 ›› Issue (1): 70-77.doi: 10.11707/j.1001-7488.20220108

Previous Articles     Next Articles

Identification and Selection of the Internal Reference Genes of Ceracris kiangsu (Orthoptera: Arcypteridae) by RT-qPCR

Linxin Fang,Zhihong Li,Shouke Zhang,Wei Zhang,Jinping Shu*,Haojie Wang   

  1. Research Institute of Subtropical Forestry, CAF Hangzhou 311400
  • Received:2020-05-25 Online:2022-01-25 Published:2022-03-08
  • Contact: Jinping Shu

Abstract:

Objective: To provide a reference for further transcriptomics studies of the yellow-spined locust, Ceracris kiangsu, the reference genes were screened based on different instars, different genders of adults and different tissues of C. kiangsu. Method: According to the transcriptome sequencing result, nine internal reference genes commonly used in insects, TUB, RPS27A, RPL10, AK, GAPDH, EF1A, RPS3, Actin, and 18S rRNA were chosen as candidates. The base sequences were obtained, and primers were designed after local Blast. GeNorm, NormFinder and BestKeeper were used to analyze the stability of the nine reference genes, and then the most suitable reference genes were screened according to the expression levels in different instars, genders of aduits, and tissues (antennae, head, labial palp, muscle tissue, testis/ovary) of adults. Result: Nine candidate reference genes of C. kiangsu were verified and reported for the first time, and they showed high homology (more than 70%) with the corresponding genes of other insects. The primers for the nine candidate reference genes all had good amplification efficiency (within 90%- 120%). In all samples, the expression level of 18S rRNA was the highest (Ct value = 10.78 ± 2.58, P < 0.05), and the difference in Actin expression level was the largest (Ct= 23.55 ± 3.84, P < 0.05). In analyzing the stability of the reference genes of C. kiangsu at different stages of nymphs, the top two of the three software were RPS3 and RPL10. Based on the analysis of different tissues, RPL10 was the most suitable reference gene suggested by GeNorm and BestKeeper, while GAPDH was most suitable one according the analysis of NormFinder. In terms of the analysis of different genders of the C. kiangsu adults, GAPDH and RPL10 were proved to be the two most suitable reference genes by the three software. Conclusion: RPL10 with stable and different expression under various conditions in C. kiangsu has bee screened as reference gene, which can be used as an internal reference gene for the research of transcriptomics and functional genomics for C. kiangsu.

Key words: Ceracris kiangsu, reference gene, gene screening, RT-qPCR

CLC Number: