A New Variety of the Genus Panax from Southern Yunnan, China and Its Nucleotide Sequences of 18S Ribosomal RNA Gene and matK Gene
2003 Volume 78 Issue 2 Pages 86-94
Details
2003 Volume 78 Issue 2 Pages 86-94
A new variety of Panax L., P. vietnamensis Ha & Grushv. var. fuscidiscus K.Komatsu, S.Zhu & S.Q.Cai is described, together with its nucleotide sequences of 18S rRNA gene and matK gene. On the basis of both gene sequences, the phylogenetic relationship among the new variety and other 6 Panax taxa has been investigated. This new variety exhibits a close relationship with P. vietnamensis in morphological characters as well as molecular evidences, but differs from it in having flat, fuscous or vaccinous disk and completely separated styles in 2-styled flowers, besides the unique nucleotide sequences of matK gene. Its somatic chromosome number is 2n = 2x = 24.
