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Título: | Dynamics of DNA replication during premeiosis and early meiosis in wheat |
Autor: | Rey-Santomé, María Dolores CSIC ORCID; Prieto, Pilar CSIC ORCID | Fecha de publicación: | 2-oct-2014 | Editor: | Public Library of Science | Citación: | PLoS ONE 9(10): e107714 (2014) | Resumen: | Meiosis is a specialised cell division that involves chromosome replication, two rounds of chromosome segregation and results in the formation of the gametes. Meiotic DNA replication generally precedes chromosome pairing, recombination and synapsis in sexually developing eukaryotes. In this work, replication has been studied during premeiosis and early meiosis in wheat using flow cytometry, which has allowed the quantification of the amount of DNA in wheat anther in each phase of the cell cycle during premeiosis and each stage of early meiosis. Flow cytometry has been revealed as a suitable and user-friendly tool to detect and quantify DNA replication during early meiosis in wheat. Chromosome replication was detected in wheat during premeiosis and early meiosis until the stage of pachytene, when chromosomes are associated in pairs to further recombine and correctly segregate in the gametes. In addition, the effect of the Ph1 locus, which controls chromosome pairing and affects replication in wheat, was also studied by flow cytometry. Here we showed that the Ph1 locus plays an important role on the length of meiotic DNA replication in wheat, particularly affecting the rate of replication during early meiosis in wheat. | Versión del editor: | http://dx.doi.org/10.1371/journal.pone.0107714 | URI: | http://hdl.handle.net/10261/127823 | DOI: | 10.1371/journal.pone.0107714 | Identificadores: | doi: 10.1371/journal.pone.0107714 issn: 1932-6203 |
Aparece en las colecciones: | (IAS) Artículos |
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Dynamics of DNA Replication_Rey.pdf | 2,34 MB | Adobe PDF | Visualizar/Abrir |
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