期刊
NATURE GENETICS
卷 51, 期 8, 页码 1283-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41588-019-0471-2
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资金
- Medical Research Council
- Medical Research Council as part of UK Research and Innovation [MC_UP_1201/18]
- MRC [MC_UP_1201/18] Funding Source: UKRI
Germline de novo mutations are the basis of evolutionary diversity but also of genetic disease. However, the molecular origin, mechanisms and timing of germline mutagenesis are not fully understood. Here, we define a fundamental role for DNA interstrand cross-link repair in the germline. This repair process is essential for primordial germ cell (PGC) maturation during embryonic development. Inactivation of cross-link repair leads to genetic instability that is restricted to PGCs within the genital ridge during a narrow temporal window. Having successfully activated the PGC transcriptional program, a potent quality control mechanism detects and drives damaged PGCs into apoptosis. Therefore, these findings define a source of DNA damage and the nature of the subsequent DNA repair response in germ cells, which ensures faithful transmission of the genome between generations.
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