Summary
Some haploids isolated among the progeny from crosses involving several genotypically different motherplants of Beta vulgaris L., were used for an investigation on chromosome morphology of the genus Beta.
The length of both the long and short arms proved to vary considerably for each chromosome, so that a representative idiogram of the 9 chromosomes could not be made. Staining the chromosomes according to the BSG-technique revealed only bands in the centromere regions. However, one chromosome with a narrow band in the short arm could be identified, which was supposed to be the nucleolar chromosome. The C-bands presumably correlate with the heterochromatic blocks as observed in mitotic and meiotic (pachytene) prophase.
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This study was part of a project on cytogenetics of interspecific hybrids resistent to beet cyst eelworm, supported by the Institute of Rational Sugar Production,Bergen op Zoom, the Netherlands.
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De Jong, J.H., De Bock, T.S.M. Use of haploids of Beta vulgaris L. for the study of orcein and giemsa stained chromosomes. Euphytica 27, 41–47 (1978). https://doi.org/10.1007/BF00039118
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DOI: https://doi.org/10.1007/BF00039118