Ladda Eksomtramage, Manatsada Kwarm and Choathip Purintavaragul

pp. 379 - 382

Abstract

Somatic chromosome numbers and karyotypes of nine species in three genera of Thai Hypoxidaceae were determined
in root tips. All species are diploid with 2n = 18 and asymmetrical karyotypes including metacentric (m) submetacentric (sm)
subtelocentric (st) and also telocentric (t) in some species. Satellite chromosomes (SAT) were observed in all species studied
except in C. latifolia. The karyotypes of Curculigo ensifolia 4m+8sm+6st(2SAT), C. latifolia 2m+14sm+2st, C. megacarpa
2m+12sm+4st(2SAT), C. villosa 4m+10sm(2SAT)+4st, Hypoxis aurea 2m+8sm+8st(2SAT), Molineria capitulata 2m+10sm+
2st (2SAT)+4t, M. trichocarpa 2m+10sm+6st(2SAT), M. gracilis and M. latifolia 4m+8sm+4st (2SAT)+2t are reported for
the first time. The chromosome relative length of Curculigo, Hypoxis and Molineria range between 3.44-9.55, 4.03-8.12 and
3.64-8.97, respectively. 

Keywords

• karyotype
• Thai Hypoxidaceae
• Curculigo
• Hypoxis
• Molineria