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The synaptonemal complex imposes crossover interference and heterochiasmy in Arabidopsis
Open accessAbstract
Significance: Meiotic recombination promotes genetic diversity by shuffling parental chromosomes. As observed by the very first geneticists, crossovers inhibit the formation of another crossover nearby, an elusive phenomenon called crossover interference. Another intriguing observation is heterochiasmy, the marked difference in male and female crossover rates observed in many species. Here, we show that the synaptonemal complex, a structure that zips homologous chromosomes together during meiosis, is essential for crossover interference in Arabidopsis. This suggests that a signal that inhibits crossover formation nearby a first crossover propagates along this specific structure. Furthermore, in the absence of the synaptonemal complex, crossover frequencies become identical in both sexes, suggesting that heterochiasmy is due to variation of crossover interference imposed by the synaptonemal complex.
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Trimmomatic: a flexible trimmer for Illumina sequence data
Bolger, A. M., Lohse, M., & Usadel, B. (2014) · Bioinformatics · doi:10.1093/bioinformatics/btu170 · Cited by 65,548
Cited by
The Zip4 protein directly couples meiotic crossover formation to synaptonemal complex assembly
Pyatnitskaya, A., Andreani, J., Guérois, R., De Muyt, A., & Borde, V. (2022) · Genes & Development · doi:10.1101/gad.348973.121 · Cited by 51
Bačovský, V., Novotná, P., Phillips, D., Horáková, L., Kružlicová, J., Čížková, J., Janoušek, B., & Čegan, R. (2026) · Plant Physiology · doi:10.1093/plphys/kiaf599
Metadata
- Authors
- Capilla-Pérez, L., Durand, S., Hurel, A., Lian, Q., Chambon, A., Taochy, C., Solier, V., Grelon, M., & Mercier, R.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2021-03-15
- Volume
- 118
- Issue
- 12
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W3136357081
- Cited by
- 210
- References
- 1
- FWCI
- 21.15
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Capilla-Pérez, L., Durand, S., Hurel, A., Lian, Q., Chambon, A., Taochy, C., Solier, V., Grelon, M., & Mercier, R. (2021). The synaptonemal complex imposes crossover interference and heterochiasmy in Arabidopsis. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2023613118
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