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Random Chromosome Segregation without Meiotic Arrest in Both Male and Female Meiocytes of a dmc1 Mutant of Arabidopsis
Open accessAbstract
In yeast, the DMC1 gene is required for interhomolog recombination, which is an essential step for bivalent formation and the correct partition of chromosomes during meiosis I. By using a reverse genetics approach, we were able to identify a T-DNA insertion in AtDMC1, the Arabidopsis homolog of DMC1. Homozygotes for the AtDMC1 insertion failed to express AtDMC1, and their residual fertility was 1.5% that of the wild type. Complete fertility was restored in mutant plants when a wild-type copy of the AtDMC1 gene was reintroduced. Cytogenetical analysis points to a correlation of the sterility phenotype with severely disturbed chromosome behavior during both male and female meiosis. In this study, our data demonstrate that AtDMC1 function is crucial for meiosis in Arabidopsis. However, meiosis can be completed in the Arabidopsis dmc1 mutant, which is not the case for mouse or some yeast mutants.
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Cites
Homology-directed repair is a major double-strand break repair pathway in mammalian cells
Liang, F., Han, M., Romanienko, P. J., & Jasin, M. (1998) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.95.9.5172 · Cited by 649
Cited by
The Molecular Biology of Meiosis in Plants
Mercier, R., Mézard, C., Jenczewski, E., Macaisne, N., & Grelon, M. (2015) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-050213-035923 · Cited by 565
AtSPO11-1 is necessary for efficient meiotic recombination in plants
Grelon, M. (2001) · The EMBO Journal · doi:10.1093/emboj/20.3.589 · Cited by 511
Female Gametophyte Development
Yadegari, R. (2004) · THE PLANT CELL ONLINE · doi:10.1105/tpc.018192 · Cited by 451
Alonso-Peral, M. M., Li, J., Li, Y., Allen, R. S., Schnippenkoetter, W., Ohms, S., White, R. G., & Millar, A. A. (2010) · Plant Physiology · doi:10.1104/pp.110.160630 · Cited by 313
The Arabidopsis AtRAD51 gene is dispensable for vegetative development but required for meiosis
Li, W., Chen, C., Markmann-Mulisch, U., Timofejeva, L., Schmelzer, E., Ma, H., & Reiss, B. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0404110101 · Cited by 290
Metadata
- Authors
- Couteau, F., Belzile, F., Horlow, C., Grandjean, O., Vezon, D., & Doutriaux, M.-P.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 1999-09
- Volume
- 11
- Issue
- 9
- Pages
- 1623-1634
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2127049134
- Cited by
- 325
- References
- 1
- FWCI
- 3.15
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: Random Chromosome Segregation without Meiotic Arrest in Both Male and Female Meiocytes of a dmc1 Mutant of Arabidopsis. https://app.cochat.ai/papers/10.1105/tpc.11.9.1623
- The paper
- Couteau, F., Belzile, F., Horlow, C., Grandjean, O., Vezon, D., & Doutriaux, M.-P. (1999). Random Chromosome Segregation without Meiotic Arrest in Both Male and Female Meiocytes of a dmc1 Mutant of Arabidopsis. The Plant Cell. https://doi.org/10.1105/tpc.11.9.1623
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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