Karyological Study in Three Thailand Species of <i>Colocasia</i> (Araceae)

Abstract

Cytogenetical studies in three Thailand species of genus Colocasia Schott, C. fallex, C. gigantea and C. lihengiae, were reported. The species had the same chromosomes number of 2n=28 and their karyotypes were formulated as 24m+4sm, 20m+6sm+2st (2 sat) and 18m+2sm+8st, respectively. Differences among three species appeared in the number of m, sm and st chromosomes as well as satellite. These karyological data were discussed intra- and inter-specific variation in the Colocasia species.