Chloroplast DNA phylogeography of <Emphasis Type="Italic">Pedicularis</Emphasis> ser. <Emphasis Type="Italic">Gloriosae</Emphasis> (Orobanchaceae) in Japan |
| |
Authors: | Noriyuki Fujii |
| |
Institution: | (1) Makino Herbarium, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan |
| |
Abstract: | Phylogeographic analyses using chloroplast DNA (cpDNA) variation were performed for Pedicularis ser. Gloriosae (Orobanchaceae). Eighty-one plants of 18 populations of 6 species (P. gloriosa, P. iwatensis, P. nipponica, P. ochiaiana, P. sceptrum-carolinum and P. grandiflora) were analyzed. Fifteen distinct haplotypes were identified based on six cpDNA regions: the intergenic spacer between the
trnT and trnL 3′exon, trnL 3′exon-trnF, atpB-rbcL, accD–psaI, the rpl16 intron and the trnK region (including the matK gene). Via phylogenetic analyses of the haplotypes, two continental species, P. sceptrum-carolinum and P. grandiflora, were placed at the most ancestral position in the trees. The former species is widely distributed in the Eurasian continent,
and the latter is distributed in Far East Asia. Two robust major cpDNA clades (clades I and II) were revealed in the Japanese
archipelago, although the statistical values of monophyly of these clades were weak. Clade I included the haplotypes (A-1,
A-2, B-1, B-2 and J) of three species (P. gloriosa, P. iwatensis and P. ochiaiana), and Clade II included seven haplotypes (C-D, E-1, E-2 and F-H) of P. nipponica. These results suggest that this series originated on the Eurasian continent and that subsequently populations at the eastern
edge of the continent differentiated into the two Japanese lineages.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
| |
Keywords: | Chloroplast DNA Endemic taxa Japanese archipelago Orobanchaceae Pedicularis ser Gloriosae Phylogeography |
本文献已被 PubMed SpringerLink 等数据库收录! |
|