Meiotic behaviour of Un,D and R genomes in the amphiploid Aegilops ventricosa -Secale cereale and the parental species |
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Authors: | M. C. Cermeño N. Cuñado J. Orellana |
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Affiliation: | (1) Departamento de Genética, Facultad de Biología, Universidad Complutense, E-28040 Madrid, Spain |
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Abstract: | Summary Meiotic pairing frequencies of the Un and D genomes of Ae. ventricosa and the R of S. cereale could be easily established at metaphase I in Aegilops ventricosa — Secale cereale amphiploid plants as well as in its parental species by using the C-banding technique procedure. The results show a high diminution of chromosome pairing for all genomes in the amphiploid with respect to its parental species probably due to C-heterochromatin content and/or genotypic or cryptic interactions between the three genomes. |
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Keywords: | Meiotic pairing C-banding Aegilops ventricosa S. cereale Amphiploidy of Aegilops ventricosa S. cereale |
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