Home >> Taxon, Volume 53, Number 3

Molecular phylogenetic analyses and systematics of the genus Saussurea and related genera (Asteraceae, Cardueae)

Authors: Yoko Kita1; Kazumi Fujikawa2; Motomi Ito3; Hideaki Ohba4; Masahiro Kato1

Source: Taxon, Volume 53, Number 3, 1 August 2004 , pp. 679-690(12)

Publisher: International Association for Plant Taxonomy

Buy & download fulltext article:

OR

Price: $16.98 plus tax (Refund Policy)

Abstract:

The phylogenetic relationships of the genus Saussurea DC. and Hemistepta lyrata Bunge were analyzed using the nuclear ribosomal ITS and chloroplast matK gene. Phylogenetic analyses revealed that Saussurea ceratocarpa Decne. of subg. Jurinocera (Baill.) Lipsch. and the species assigned to sect. Elatae Hook. f. of subg. Saussurea were separated from all other members of the genus Saussurea. The species of subgen. Jurinocera and subgen. Saussurea sect. Elatae form a monophyletic unit along with a group including genus Jurinea Cass. The species of subg. Jurinocera and sect. Elatae share 4–5-gonal cypselas and apical pericarpal crowns bearing sharp horns or sharp teeth. The Saussurea s.s. group is comprised of representatives of six sections of the subg. Saussurea and morphologically distinctive subgenera [Amphilaena (Stschegl.) Lipsch., Eriocoryne (DC.) Hook. f., and Theodorea (Cass.) Lipsch.]. Two frigid-adapted forms, the "snowball plants" of subg. Eriocoryne and the "glasshouse plants" of subg. Amphilaena, were confirmed as members of Saussurea s.s. Hemistepta lyrata and Saussurea s.s. show a close sister relationship, which is supported by the pappus dimorphism involving free, short, scabrid outer bristles or tiny outer scales and basally connate in a ring, with much longer, plumose inner bristles.

Keywords: HEMISTEPTA; ITS; MATK; PHYLOGENY; SAUSSUREA SECT ELATAE SUBG JURINOCERA

Document Type: Research article

Affiliations: 1: Department of Biological Sciences, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113-0033, Japan 2: The Kochi Prefectural Makino Botanical Garden, 4200-6 Godaisan, Kochi, Kochi 781-8125, Japan 3: Department of General System Studies, Graduate School of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan 4: University Museum, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan

Publication date: 2004-08-01

Related content
Marked list

Tools

Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
^ Back to top
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page