the fourth stage of the prophase of meiosis, during which the paired homologous chromosomes separate except at the places where genetic exchange has occurred
See also chiasma (sense 1), crossing over
Word origin
C20: from diplo- + Greek tainia band
Examples of 'diplotene' in a sentence
diplotene
The occurrence of a diplotene diffusion stage has been observed in many plant species.
Agnieszka Kołowerzo-Lubnau, Janusz Niedojadło, Michał Świdziński, Elżbieta Bednarska-Kozakiewicz,Dariusz J Smoliński 2015, 'Transcriptional activity in diplotene larch microsporocytes, with emphasis on thediffuse stage.', PLoS ONEhttp://europepmc.org/articles/PMC4324999?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
During diplotene, a cross-shaped configurationconnected with the nucleoli was observed in some meiocytes.
Maria Suely Pagliarini, Gléia Laverde Ricci, Neide da Silva, Carlos Alberto Scapim 2006, 'Interchanges in popcorn (Zea mays L.) involving the nucleolus organizer chromosome',Crop Breeding and Applied Biotechnologyhttp://www.sbmp.org.br/cbab/siscbab/uploads/bd6ba09c-5308-f009.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
During the diplotene ("confused stage") the volume of the nucleus doubles once more and reaches volume 4.
G. Schreiber, J. Pellegrino 1951, 'Análise citológica e cariométrica da ação da colchina sôbre a espermatogênese doshemípteros Cytologic and caryometric analysis of the action of colchicine on the spermatogenesisin hemiptera', Memórias do Instituto Oswaldo Cruz.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761951000100007. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In the diplotene stage the chromosomes were observed to be very short and the centromeres could not be seen.
A. J. T. Mendes 1950, 'Observações citológicas em Coffea: XV - Microsporogênese em Coffea arabica L.', Bragantiahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051950000300002. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)