DNA methylation is maintained with high fidelity in the honey bee germline and exhibits global non-functional fluctuations during somatic development

Harris KD, Lloyd JPB, Domb K, ZILBERMAN D, Zemach A. 2019. DNA methylation is maintained with high fidelity in the honey bee germline and exhibits global non-functional fluctuations during somatic development. Epigenetics and Chromatin. 12, 62.

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Journal Article | Published | English

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Author
Harris, Keith D.; Lloyd, James P. B.; Domb, Katherine; ZILBERMAN, DanielIST Austria; Zemach, Assaf
Abstract
Background DNA methylation of active genes, also known as gene body methylation, is found in many animal and plant genomes. Despite this, the transcriptional and developmental role of such methylation remains poorly understood. Here, we explore the dynamic range of DNA methylation in honey bee, a model organism for gene body methylation. Results Our data show that CG methylation in gene bodies globally fluctuates during honey bee development. However, these changes cause no gene expression alterations. Intriguingly, despite the global alterations, tissue-specific CG methylation patterns of complete genes or exons are rare, implying robust maintenance of genic methylation during development. Additionally, we show that CG methylation maintenance fluctuates in somatic cells, while reaching maximum fidelity in sperm cells. Finally, unlike universally present CG methylation, we discovered non-CG methylation specifically in bee heads that resembles such methylation in mammalian brain tissue. Conclusions Based on these results, we propose that gene body CG methylation can oscillate during development if it is kept to a level adequate to preserve function. Additionally, our data suggest that heightened non-CG methylation is a conserved regulator of animal nervous systems.
Publishing Year
Date Published
2019-10-10
Journal Title
Epigenetics and Chromatin
Volume
12
Article Number
62
eISSN
IST-REx-ID

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Harris KD, Lloyd JPB, Domb K, ZILBERMAN D, Zemach A. DNA methylation is maintained with high fidelity in the honey bee germline and exhibits global non-functional fluctuations during somatic development. Epigenetics and Chromatin. 2019;12. doi:10.1186/s13072-019-0307-4
Harris, K. D., Lloyd, J. P. B., Domb, K., ZILBERMAN, D., & Zemach, A. (2019). DNA methylation is maintained with high fidelity in the honey bee germline and exhibits global non-functional fluctuations during somatic development. Epigenetics and Chromatin. Springer Nature. https://doi.org/10.1186/s13072-019-0307-4
Harris, Keith D., James P. B. Lloyd, Katherine Domb, Daniel ZILBERMAN, and Assaf Zemach. “DNA Methylation Is Maintained with High Fidelity in the Honey Bee Germline and Exhibits Global Non-Functional Fluctuations during Somatic Development.” Epigenetics and Chromatin. Springer Nature, 2019. https://doi.org/10.1186/s13072-019-0307-4.
K. D. Harris, J. P. B. Lloyd, K. Domb, D. ZILBERMAN, and A. Zemach, “DNA methylation is maintained with high fidelity in the honey bee germline and exhibits global non-functional fluctuations during somatic development,” Epigenetics and Chromatin, vol. 12. Springer Nature, 2019.
Harris KD, Lloyd JPB, Domb K, ZILBERMAN D, Zemach A. 2019. DNA methylation is maintained with high fidelity in the honey bee germline and exhibits global non-functional fluctuations during somatic development. Epigenetics and Chromatin. 12, 62.
Harris, Keith D., et al. “DNA Methylation Is Maintained with High Fidelity in the Honey Bee Germline and Exhibits Global Non-Functional Fluctuations during Somatic Development.” Epigenetics and Chromatin, vol. 12, 62, Springer Nature, 2019, doi:10.1186/s13072-019-0307-4.
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