We postulate the phylogenetic relationships of section Archelirion (genus Lilium) based on the nucleotide sequence variations of three spacer regions in chloroplast DNA, trnT-trnL, trnL-trnF and atpB-rbcL. The sequences aligned provided a matrix of 1,627 bp, and were analyzed phylogenetically by the maximum parsimony method. Section Archelirion was divided into two major clades, one consisting of L. auratum var. auratum and L. rubellum, and the other consisting of the rest of taxa in Archelirion. The cytoplasm of the former clade was regarded as the rubellum type (eastern type), and that of the latter clade as the japonicum type (western type). Each taxon was monophyletic, but two varieties of L. auratum were belonged to a different clade. The phylogeny of L. auratum var. auratum is different from that of L. auratum var. platyphyllum, and it has a sister-relationship with L. rubellum. These results provide a more convincing phylogenetic relationship within section Archelirion.
2002 by JAPANESE SOCIETY OF BREEDING