Cytogenetical Studies in the Genus Capsicum I

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Abstract
Interspecific crosses between C. frutescens and C. annuum were made, and F1 hybrids were obtained when C. frutescens Ac 1443 was used as female parent. Morphological characters concerning plant height, stem, leaf, flower and fruits of the F1 hybrids were compared with those of their parents. Meiosis in PMC''s of both parents was normal, showing close pairing of 12 bivalents. At diakinesis in PMC''s of F1 hybrids 12 bivalents were observed in about 70% of the cells. At metaphase I, 5 to 12 bivalents were demonstrated with the mode at 11II+2I. The maximum number of univalents was 14; their single chromosomes were separated after previous pairing. Closely paired bivalents were seldom observed. It was demonstrated that the chromosomes of the 2 species were semi-homologous.

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