Abstract
Giemsa C-banding is applied for the first time inCapsicum, allowing preliminary karyotype differentiation of six diploid species. Comparison of interphase nuclei and heterochromatic C-bands reveals striking differences between taxa and contributes to their taxonomic grouping. Therefore, C-banding appears to be a powerful tool for the cytogenetics and karyosystematics of the genus. Banding patterns are characterized by the omnipresence of centromeric bands and a variable number of smaller to larger distal bands, with the addition of intercalary bands in some cases. Satellites are always C-positive. Relationships between species and possible trends of karyotype evolution are discussed, with special reference to the origin of x = 13 from x = 12 and the increase of heterochromatin, regarded as advanced features.
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Chromosome studies inCapsicum (Solanaceae), III. For the first and the second part seeMoscone (1990, 1993).
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Moscone, E.A., Lambrou, M., Hunziker, A.T. et al. Giemsa C-banded karyotypes inCapsicum (Solanaceae). Pl Syst Evol 186, 213–229 (1993). https://doi.org/10.1007/BF00940799
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DOI: https://doi.org/10.1007/BF00940799