CYTOMORPHOLOGICAL STUDIES IN VIGNA | BIONATURE

In Vigna grahamianus Verdc. and Vigna wightii Benth., detailed cytomorphological research have been conducted. The Australian cultivar of V. luteola outperforms the other two cultivars from Brazil, South Africa, and Australia in our botanic garden as a higher yielding variety. This cultivar has also been the subject of cytological research. The somatic chromosome number in all three species is 2n = 22, and as far as we know, the first record of chromosome number was made in V. grahamianus and V. wightii. Amitotic divisors, anaphasic bridges, and laggards are common in V. grahamianus, although the plant's fertility has been harmed. Different chromosome karyotypes and aberrant absolute chromosome lengths distinguish all three species studied. The Australian cultivar of V. luteola is diploid, and the current research backs with previous findings about somatic chromosome number.

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