Resultados totales (Incluyendo duplicados): 2
Encontrada(s) 1 página(s)
Docta Complutense
oai:docta.ucm.es:20.500.14352/88106
Dataset. 2023

RAW DATA: SYNTHETICALLY-INDUCED ARABIDOPSIS THALIANA AUTOTETRAPLOIDS PROVIDE INSIGHTS IN THE ANALYSIS OF MEIOTIC MUTANTS WITH ALTERED CROSSOVER FREQUENCY

  • Parra-Nuñez, Pablo
  • Pachon-Penalba, Miguel
  • Sanchez-Moran, Eugenio
  • Santos, Juan Luis
  • Fernández Jiménez, Nadia|||0000-0002-4196-0134
  • Pradillo Orellana, Mónica|||0000-0002-4435-3102
  • Santos Coloma, Juan Luis|||0000-0003-4475-9628
• Mutations affecting crossover frequency and distribution lead to the presence of univalents during meiosis, giving rise to aneuploid gametes and sterility. These mutations may have a different effect after chromosome doubling. The combination of altered ploidy and mutations could be potentially useful to gain new insights into the mechanisms and regulation of meiotic recombination, however, studies using autopolyploid meiotic mutants are scarce. • Here, we have analyzed the cytogenetic consequences in colchicine-induced autotetraploids (colchiploids) from different Arabidopsis mutants with an altered crossover frequency. • We have found that there are three types of mutants: i) mutants in which chiasma frequency is doubled after chromosome duplication (zip4, mus81), as in the control; ii) mutants in which polyploidy leads to higher-than expected increase in chiasma frequency (asy1, mer3, hei10, mlh3); and iii) mutants in which the rise in chiasma frequency produced by the presence of two extra chromosomal sets is less than doubled (msh5, fancm). In addition, the proportion of class I/class II crossovers varies after chromosome duplication in the control. • The results obtained reveal the potential of colchiploid meiotic mutants for better understanding of the function of key proteins during plant meiosis. This is especially relevant considering that most crops are polyploids.

Proyecto: //
DOI: https://hdl.handle.net/20.500.14352/88106
Docta Complutense
oai:docta.ucm.es:20.500.14352/88106
HANDLE: https://hdl.handle.net/20.500.14352/88106
Docta Complutense
oai:docta.ucm.es:20.500.14352/88106
PMID: https://hdl.handle.net/20.500.14352/88106
Docta Complutense
oai:docta.ucm.es:20.500.14352/88106
Ver en: https://hdl.handle.net/20.500.14352/88106
Docta Complutense
oai:docta.ucm.es:20.500.14352/88106

UPCommons. Portal del coneixement obert de la UPC
oai:upcommons.upc.edu:2117/342638
Dataset. 2021

DURCWAVE - CIEM

  • Altomare, Corrado|||0000-0001-8817-0431
  • Gironella Cobos, Xavier|||0000-0002-8862-5704
  • Sospedra Iglesias, Joaquim|||0000-0003-4207-7922
The data refer to an experimental campaign carried out to characterize the forces involved in the failure of the Pont del Petroli (Badalona, Catalonia) due to the storm Gloria happened in the night of the 20 January 2020. The experiments were carried out in the CIEM (Canal d’Investigació i Experimentació Marítima) wave flume in the Laboratory of Maritime Engineering of the UPC (Universitat Politecnica de Catalunya - BarcelonaTech, Barcelona, Catalonia)., Data include measurements of water surface elevation along the wave flume and wave loading (forces + pressures) on elements of the pier. Both raw and post-processed data are provided.

DOI: http://hdl.handle.net/2117/342638, https://dx.doi.org/10.5821/data-2117-342638-1
UPCommons. Portal del coneixement obert de la UPC
oai:upcommons.upc.edu:2117/342638
HANDLE: http://hdl.handle.net/2117/342638, https://dx.doi.org/10.5821/data-2117-342638-1
UPCommons. Portal del coneixement obert de la UPC
oai:upcommons.upc.edu:2117/342638
PMID: http://hdl.handle.net/2117/342638, https://dx.doi.org/10.5821/data-2117-342638-1
UPCommons. Portal del coneixement obert de la UPC
oai:upcommons.upc.edu:2117/342638
Ver en: http://hdl.handle.net/2117/342638, https://dx.doi.org/10.5821/data-2117-342638-1
UPCommons. Portal del coneixement obert de la UPC
oai:upcommons.upc.edu:2117/342638

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