Taxonomic reconsideration of Calamus rivalis Thw. ex Trim. and C. metzianus Schlecht (Arecaceae) through morphometric and molecular analyses
نویسندگان
چکیده
Molecular and morphometric analyses of different Indian and Sri Lankan populations of two rattan species (Calamus rivalis and C. metzianus) were carried out using Random Amplified Polymorphic DNA (RAPD) markers and morphological characters. Multivariate analysis of RAPD and morphological data failed to separate these populations into two distinct species. RAPDs generated a total of 117 markers with 10 decamer primers, of which 95 percent were polymorphic. The percentage of polymorphic loci between populations varied from 26.5 to 68.38, and genetic distance between populations ranged from 0.05 to 0.28. The genetic variation within populations was greater than the variation among populations. Both the RAPD and morphometric data suggest the existence of a single species, and hence C. rivalis can be merged to C. metzianus.
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