Zayed EM and Zeinab ME
The aim of the present investigation was cytological and protein comparison among three species within the genus Trifolium. The results revealed, Idiogram of the haploid complements of T. alexandrinum, T. refeigratum and T. repens. Besides T. refeigratum and T. repens have 16 pairs of chromosomes with a pair of satellites located at the end of their short arm in chromosome 16. T. alexandrinum has 8 pairs of chromosomes whose karyotyping formula is 2 nsm (+), 10 nsm (-) + 4 nm. The T. alexandrinum was clustering alone as well as having polymorphic bands that were different from T. refeigratum and T. repens.
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