Karyomorphological and heterochromatin similarities among fourVigna species |
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Authors: | Domenico Pignone Incoronata Galasso Gianfranco Venoral |
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Institution: | (1) CNR - Istituto del Germoplasma, Bari, Italy;(2) Stazione Sperimentale di Granicoltura per la Sicilia, Caltagirone, Italy |
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Abstract: | Summary Karyomorphological similarities among four species of the genusVigna, V. unguiculata, V. luteola, V. oblongifolia andV. vexillata, were evaluated. Two different approaches were followed: cytomorphometrical determinations, carried out with an automated
image analysis system to improve resolution, yielded some karyotypical indices; the distribution of heterochromatin bands
was interpreted using a recently reported algorithm.
Both methods led to similar results: the most karyologically similar species toV. unguiculata appears to beV. luteola, whileV. oblongifolia appears to be the least related one. |
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