Inducing chromosome pairing through premature condensation: analysis of wheat interspecific hybrids

At the onset of meiosis, chromosomes first decondense and then condense as the process of recognition and intimate pairing occurs between homologous chromosomes. We show here that okadaic acid, a drug known to induce chromosome condensation, can be introduced into wheat interspecific hybrids prior t...

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Detalles Bibliográficos
Autores principales: Knight, Emilie, Greer, Emma, Draeger, Tracie, Thole, Vera, Reader, Steve, Shaw, Peter, Moore, Graham
Formato: Texto
Lenguaje:English
Publicado: Springer-Verlag 2010
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2970806/
https://www.ncbi.nlm.nih.gov/pubmed/20676714
http://dx.doi.org/10.1007/s10142-010-0185-0
Descripción
Sumario:At the onset of meiosis, chromosomes first decondense and then condense as the process of recognition and intimate pairing occurs between homologous chromosomes. We show here that okadaic acid, a drug known to induce chromosome condensation, can be introduced into wheat interspecific hybrids prior to meiosis to induce chromosome pairing. This pairing occurs in the presence of the Ph1 locus, which usually suppresses pairing of related chromosomes and which we show here delays condensation. Thus the timing of chromosome condensation during the onset of meiosis is an important factor in controlling chromosome pairing. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s10142-010-0185-0) contains supplementary material, which is available to authorized users.

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