Abstract
Sogatella furcifera is an important rice pest with wing dimorphism. We previously demonstrated that differentially methylated DNA fragments obtained in macropterous and brachypterous adults of S. furcifera were homologous to the 28 S ribosomal RNA (rRNA) gene, we hypothesized that the methylation levels of 28 S rRNA gene between two wing phenotypes may be different. To test this, we cloned 28 S rRNA gene, which contained 3579 bp and 6 CpG islands. Then methylation-specific primers were designed in the four CpG islands. We found that the four CpG islands were all methylated, and the methylation level remained above 40%, suggesting that the ribosomal gene was the high frequency region for the methylation in the rice pest. We also found that the methylation levels and patterns of 28 S rRNA gene were not consistent between two wing phenotypes individuals of S. furcifera. The findings imply that DNA methylation of 28 S rRNA gene may be related to wing phenotype variations in rice planthoppers, and will facilitate the epigenetic mechanism researches of insect wing dimorphism.
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Our research was granted by the science and technology planning project of Guangzhou (grant number 202002030019) and the Natural Science Foundation of Guangdong Province (grant number 2021A1515012402).
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Feng, B., Liang, Z. & Wang, F. Cloning and differential methylation of 28 S rRNA gene from two wing phenotypes of Sogatella furcifera, an important pest in rice. Int J Trop Insect Sci 43, 1505–1512 (2023). https://doi.org/10.1007/s42690-023-01058-8
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DOI: https://doi.org/10.1007/s42690-023-01058-8