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Regulation of 'haploid expressed genes' in male germ cells
Open accessAbstract
Department of Biology, Tufts University, Medford, MA 02155, USA Keywords: spermatogenesis; haploid gene expression; gene regulation; testis Introduction: Spermatogenesis offers an experimental system whereby the gene expression of eukaryotic cells with tetraploid, diploid, and haploid chromosome complements can be compared. Starting from a population of stem cells, the diploid spermatogonia follow one of two lineages. One subpopulation of cells initiates a differentiation process ultimately leading to the spermatozoon while a second, presumably distinct, subpopulation of spermatogonia enters a pathway that maintains and repopulates the stem cells of the testis. The cells destined to become spermatozoa undergo several spermatogonial divisions. The last complete replication of DNA during spermatogenesis, in the preleptotene primary spermatocyte, heralds the start of meiosis. During the lengthy interval of meiotic prophase, homologous chromosomes synapse and genetic recombination occurs, producing the genetic diversity required for survival of a species. Following meiotic recombination, the 4N spermatocytes divide twice
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Cited by
Altered protamine expression and diminished spermatogenesis: what is the link?
Carrell, D. T., Emery, B. R., & Hammoud, S. (2007) · Human Reproduction Update · doi:10.1093/humupd/dml057 · Cited by 386
Yoshida, M., Ishigaki, K., Nagai, T., Chikyu, M., & Pursel, V. G. (1993) · Biology of Reproduction · doi:10.1095/biolreprod49.1.89 · Cited by 373
The sperm epigenome and potential implications for the developing embryo
Jenkins, T. G., & Carrell, D. T. (2012) · Reproduction · doi:10.1530/rep-11-0450 · Cited by 232
Metadata
- Authors
- Hecht, N. B.
- Venue
- Reproduction
- Publisher
- Oxford University Press (OUP)
- Published
- 1990-03-01
- Volume
- 88
- Issue
- 2
- Pages
- 679-693
- ISSN
- 1470-1626 (ISSN-L)
- 1741-7899
- OpenAlex
- W1983951002
- Cited by
- 174
- References
- 0
- FWCI
- 12.84
- Type
- journal article
- Language
- en
- Open access
- bronze
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