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DAZL expression explains origin and central formation of primordial germ cells in chickens
Cited 49 time in
Web of Science
Cited 52 time in Scopus
- Authors
- Issue Date
- 2016-12
- Publisher
- Mary Ann Liebert Inc.
- Citation
- Stem Cells and Development, Vol.25 No.1, pp.68-79
- Abstract
- The timing and biological events associated with germ cell specification in chickens have not been determined yet. In this study, we report the origin of primordial germ cells (PGCs) and germ plasm dynamics through investigation of the expression of the chicken homolog of deleted in azoospermia-like (cDAZL) gene during germ cell specification. Asymmetric localization of germ plasm in the center of oocytes from preovulatory follicle stages leads to PGCs being formed in the center. During cleavage stages, DAZL expression pattern changes from a subcellular localization to a diffuse form before and after zygotic genome activation. Meanwhile, PGCs exhibit transcriptional active status during their specification. In addition, knockdown studies of cDAZL, which result in reduced proliferation, aberrant gene expression profiles, and PGC apoptosis in vitro, suggest its possible roles for PGC formation in chicken. In conclusion, DAZL expression reveals formation and initial positioning of PGCs in chickens.
- ISSN
- 1547-3287
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