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  Cell-cycle status of male and female gametes during Arabidopsis reproduction

Voichek, Y., Huriev, B., Michaud, C., Schmücker, A., Vargara, Z., Desvoyes, B., et al. (2024). Cell-cycle status of male and female gametes during Arabidopsis reproduction. Plant Physiology, 194(1): kiad512, pp. 412-421. doi:10.1093/plphys/kiad512.

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Voichek, Y, Autor
Huriev, B, Autor
Michaud, C, Autor
Schmücker, A, Autor
Vargara, Z, Autor
Desvoyes, B, Autor
Guttierez, C, Autor
Nizhynska, V, Autor
Jaegle, B, Autor
Borg, M1, 2, Autor                 
Berger, F, Autor
Nordborg, M, Autor
Ingouff, M, Autor
Affiliations:
1Development in Red Algae Group, Department Algal Development and Evolution, Max Planck Institute for Biology Tübingen, Max Planck Society, ou_3487211              
2Department Algal Development and Evolution, Max Planck Institute for Biology Tübingen, Max Planck Society, Max-Planck-Ring 5, 72076 Tübingen, DE, ou_3371686              

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 Zusammenfassung: Fertilization in Arabidopsis (Arabidopsis thaliana) is a highly coordinated process that begins with a pollen tube delivering the two sperm cells into the embryo sac. Each sperm cell can then fertilize either the egg or the central cell to initiate embryo or endosperm development, respectively. The success of this double fertilization process requires a tight cell cycle synchrony between the male and female gametes to allow karyogamy (nuclei fusion). However, the cell cycle status of the male and female gametes during fertilization remains elusive as DNA quantification and DNA replication assays have given conflicting results. Here, to reconcile these results, we quantified the DNA replication state by DNA sequencing and performed microscopic analyses of fluorescent markers covering all phases of the cell cycle. We show that male and female Arabidopsis gametes are both arrested prior to DNA replication at maturity and initiate their DNA replication only during fertilization.

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 Datum: 2023-092024-01
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1093/plphys/kiad512
PMID: 37757882
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Titel: Plant Physiology
  Andere : Plant Physiol.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Bethesda, Md. : American Society of Plant Biologists
Seiten: - Band / Heft: 194 (1) Artikelnummer: kiad512 Start- / Endseite: 412 - 421 Identifikator: ISSN: 0032-0889
CoNE: https://pure.mpg.de/cone/journals/resource/991042744294438