Infrageneric relationships of Korean Viola based on eight chloroplast markers

초록

Phylogeny and infrageneric relationships were reconstructed for Korean Viola (Violaceae) using eight chloroplast sequences the atpB-rbcL intergenic spacer, the atpF-H intergenic spacer, the matK gene, the psbA-trnH intergenic spacer, the psbK-I intergenic spacer, the rpl16 intron, the rpoCl exon 2, and the trnL-trnF regions The combined analyses of the eight chloroplast regions suggest that sections Dischidium and Chamaemelanium are monophyletic, whereas section Nomimium is paraphyletic, sections Dischidium and Chamaemelanium form a clade with subsections Hypocarpae and Trigonocarpae of section Nomimium, but unresolved within the clade, two subsections (subsects Bilobatae and Vaginatae) of section Nomimium form a clade and are placed between the stem and stemless species group, and subsection Patellares of section Nomimium is monophyletic, and Viola dissecta is diverged first in the clade with high support (BS = 100, PP = 100) Our present results support the subsectional grouping based on morphological characteristics, although discordance remained at the series level

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