Differential DNA methylation between two wing phenotypes adults of Sogatella furcifera

Authors

  • Xiaosui Zhou,

    1. State Key Laboratory for Biocontrol and Institute of Entomology, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
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  • Jialin Chen,

    1. State Key Laboratory for Biocontrol and Institute of Entomology, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
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  • Meizhang Shike Liang,

    1. State Key Laboratory for Biocontrol and Institute of Entomology, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
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  • Fanghai Wang

    Corresponding author
    1. State Key Laboratory for Biocontrol and Institute of Entomology, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
    • Correspondence to: Fanghai Wang, State Key Laboratory for Biocontrol and Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, People's Republic of China E-mail: lsswfh@mail.sysu.edu.cn

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Summary

Sogatella furcifera is a major rice pest with wing dimorphism. DNA methylation is an important epigenetic modification that plays a role in gene regulation and phenotype variation in most organisms. The objective of the current research was to survey the frequencies and variation of cytosine methylation at CCGG sequences in macropterous female adults (MFA) and brachypterous female adults (BFA) of S. furcifera, and to determine the occurrence of methylation changes associated with wing phenotypes by using methylation-sensitive amplification polymorphism (MSAP). No differences were found in the average proportions of methylated CCGG sites between MFA and BFA, but there were significant differences for methylation patterns between MFA and BFA. The fully methylated ratio was 5.81% in BFA, much higher than 2.40% in MFA; while the hemi-methylated ratio was 4.35% in BFA, much lower than 8.35% in MFA. These results provide circumstantial evidence that DNA methylation might be related to wing phenotype variation in S. furcifera. We also cloned and got 14 satisfactory sequences, which displayed variable cytosine methylation patterns between MFA and BFA. All these data will facilitate the researches on the epigenetic mechanisms of insect wing polymorphism. genesis 51:819–826. © 2013 Wiley Periodicals, Inc.

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