Myc plays an important role in Drosophila P-M hybrid dysgenesis to eliminate germline cells with genetic damage

• Ota, Ryoma

• 小林, 悟

抄録

Genetic damage in the germline induced by P -element mobilization causes a syndrome known as P-M hybrid dysgenesis (HD), which manifests as elevated mutation frequency and loss of germline cells. In this study, we found that Myc plays an important role in eliminating germline cells in the context of HD. P -element mobilization resulted in downregulation of Myc expression in the germline. Myc knockdown caused germline elimination; conversely, Myc overexpression rescued the germline loss caused by P -element mobilization. Moreover, restoration of fertility by Myc resulted in the production of gametes with elevated mutation frequency and reduced ability to undergo development. Our results demonstrate that Myc downregulation mediates elimination of germline cells with accumulated genetic damage, and that failure to remove these cells results in increased production of aberrant gametes. Therefore, we propose that elimination of germline cells mediated by Myc downregulation is a quality control mechanism that maintains the genomic integrity of the germline.

収録刊行物

• Communications Biology

  Communications Biology 3 (1), 185-, 2020-04

  Nature Research

キーワード

• General Agricultural and Biological Sciences
• General Biochemistry, Genetics and Molecular Biology
• Medicine (miscellaneous)

詳細情報

• CRID: 1050571116686301824
• NII論文ID: 120007161345
• DOI: 10.1038/s42003-020-0923-3
• ISSN: 23993642
• HANDLE: 2241/0002001477
• Web Site: https://tsukuba.repo.nii.ac.jp/records/2001477
• Web Site: https://www.nature.com/articles/s42003-020-0923-3.pdf
• Web Site: https://www.nature.com/articles/s42003-020-0923-3
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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