Karyotype Analysis of Some Sarcanthine Orchids

This is the authors' abstract. We don't add key points for this paper.

S hindo , K., and H. K amemoto . (U. Hawaii, Honolulu.) Karyotype analysis of some sarcanthine orchids . Amer. Jour. Bot. 50(1): 73–79. Illus. 1963.—Karyotypes were analyzed for 11 species in 10 genera of the sub‐tribe Sarcanthinae (Orchidaceae). These were Luisia teres, Vanda teres, Renanthera monachica, Arachnis flos‐aeris, Aerides odoralum, Vanda lamellata, Neofinetia falcata, Ascocenlruin curvifolium, Phalaenopsis sanderiana, Trichoglottis philippinensis and Angraecum eburneum. The chromosome number of all plants investigated was uniformly 2n = 38, but differences were observed for chromosome size and morphology. The chromosomes of Vanda teres and Luisia teres were among the largest and could be easily distinguished from those of Phalaenopsis sanderiana which were the smallest. Also, the karyotypes of Vanda teres and Luisia teres were the most asymmetrical with the greatest number of chromosomes with subterminal centromeres, while Trichoglottis philippinensis exhibited the most symmetrical karyotype. The significance of similarities and differences of karyotypes in relation to taxonomy and evolution in the Sarcanthinae was briefly discussed.