The morphology, chromosome number and nuclear DNA content of Tunisian populations of three Vicia species (original) (raw)

2009, African Journal of Biotechnology

The aim of this work was to determine, for Tunisian populations (wild and cultivated) of Vicia sativa, V. villosa and V. narbonensis, whether differences in chromosome number, nuclear DNA content or morphology exist among the populations; in the case of V. sativa, with respect to a commercial cultivar from Spain and, in the case of V. villosa, with respect to two accessions from Aleppo (Syria). The idea was to identify variation that could be exploited for agronomic purposes. For the study, nine populations (3 per species) were compared regarding 12 morphological characters.The three species differed significantly with respect to the majority of the characters such as leaf area, node number, ramification, length of the most developed axis, leaf length, and the number of leaflets and inflorescences per plant. The comparison of these characters within each species revealed an intra-population polymorphism especially for V. sativa and V. narbonensis. For V. villosa, the three populatio...

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