Isa, Hauwa'uEgbuche, K.C.Malgwi, M.MAliyu, Tukur Nafisatu2023-12-142023-12-142015-10-03Isa, H et.al; (2015),Cytological Studies in Eichhornia crassipes (Mart.) Solmshttps://keffi.nsuk.edu.ng/handle/20.500.14448/6158Chromosomal studies were carried out on Eichhornia crassipes and the taxon was found to have 32 individual chromosomes with haploid chromosome number of 16 (n=16), indicating a clear tetraploid genome of 2n =4x =32, chiasmata frequencies per nucleus/bivalent were analyzed at diplotene and diakinesis revealing a marked reduction of chiasmata at diakinesis as compared tobdiplotene . the very low terminalization value of 0.43 showed that most of the chiasmata were terminalized at diakinesis and metaphase I. Multivalent associations were frequent suggesting the presence of a translocation heterozygote . Univalents were also frequent occurrence .chromatid bridges , fragment, Laggards and eliminated chromosomes were also frequent at both MI and MII. Secondary association of chromosomes occurred with a prepodence of four and eight over other groups.enChromosome behaviour, chromosome studies, meiotic studies, meiotic irregularities, prophase chromosome pairingArticle