A Karyological Study of Six Commelinaceae Species from Thailand

Abstract

Cytological studies of five genera, six species of Commelinaceae from Thailand revealed the following karyotypes: Amischotolype mollissima, 2n=36 (2m+16sm+18st); Callisia fragrans, 2n=12 (6m+6st); Commelina benghalensis, 2n=22 (12m+6sm+4st); Co. diffusa 2n=48 (26m+22sm); Murdannia loriformis 2n=20 (8m+12sm); and Tradescantia spathacea 2n=12 (4m+4sm+4st). The satellites appeared in the karyotype of Co. benghalensis and M. loriformis. The karyotype formula, fundamental number (NF), and total chromosome length of A. mollissima, M. loriformis, and T. spathacea were studied for the first time.