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Supplemental Information


Xenopus laevis spermatocytes at different stages of prophase I. a. Zygotene stage. Chromosome bouquet; b. Pachytene stage; c. Diplotene. White signal corresponds to the distribution of the major protein of SC - SYCP3. Magnification × 1000.

DOI: 10.7287/peerj.preprints.27937v1/supp-1


Representation of chromosome synapsis in Xenopus. Chromosome telomeres are grouped near one of the nucleus poles at the zygotene (“bouquet” stage). In pachytene, SCs are formes by homologs. Homeologous synapsis is absent.

DOI: 10.7287/peerj.preprints.27937v1/supp-2

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Sergey Matveevsky conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft.

Sergey Stolyarov contributed reagents/materials/analysis tools, authored or reviewed drafts of the paper, approved the final draft.

Oxana Kolomiets analyzed the data, authored or reviewed drafts of the paper, approved the final draft.

Animal Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Ethical Committee of Vavilov Institute of General Genetics RAS

Data Deposition

The following information was supplied regarding data availability:

Microphotos are presenred in the File


The authors received no funding for this work.

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