Cytogenetics of Commelina erecta Linn. from South Eastern Nigeria

抄録

A study of meiosis in the PMC's of three populations of Commelina erecta (2n=4x=60) belonging to two subspecies, erecta and maritima showed regular bivalent formation in the former and irregular meiosis characterised by varying numbers of univalents, bivalents and laggards in the latter. Subspecies erecta produced ample and viable seeds which showed 61 and 65% germination respectively for the two populations studied while subsp. maritima gave 100% of infertile pollen and consequently no seed-set. The infertility of the pollens here was attributed to irregular chromosome pairing behaviour observed in meiosis.