Journal of Plant Research

, Volume 124, Issue 3, pp 349–357 | Cite as

Molecular phylogenetic analyses of Tofieldiaceae (Alismatales): family circumscription and intergeneric relationships

  • Hiroshi Azuma
  • Hiroshi Tobe
Regular Paper


Tofieldiaceae are a small monocot family comprising about 20 species, mostly distributed in the Northern Hemisphere, with some in northern South America. To clarify the family circumscription, the number of distinguishable genera in the family, and relationships among the genera, we conducted molecular analyses of cpDNA (matK and non-coding trnLtrnLtrnF region) sequences of 17 associated species of Tofieldiaceae, along with 14 species of Acorales, Alismatales, Dioscoreales, Pandanales, and Liliales. Results showed that Tofieldiaceae are monophyletic, comprising all the species assignable to Harperocallis, Isidrogalvia, Pleea, Tofieldia, and Triantha, thus supporting the original family circumscription. Within the family, Pleea is sister to the rest of the family, in which Isidrogalvia is sister to Harperocallis, and Tofieldia to Triantha. Morphological characters supporting the relationships among the genera were briefly discussed.


Isidrogalvia Phylogeny Systematics Tofieldia Tofieldiaceae Triantha 



We are grateful to Takako Kumagai, Minoru N. Tamura, and Toru Tokuoka for their assistance for collecting the leaf materials used in this study. The study is supported in part by funds from the Global Center of Excellence Program A06 and a Grant-in-Aid for Scientific Research from the Japan Society for the Promotion of Science (No. 22570090).

Supplementary material

10265_2010_387_MOESM1_ESM.doc (28 kb)
Table S1 (DOC 27 kb)
10265_2010_387_MOESM2_ESM.doc (22 kb)
Appendix S1 (DOC 22 kb)


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Copyright information

© The Botanical Society of Japan and Springer 2010

Authors and Affiliations

  1. 1.Department of Botany, Graduate School of ScienceKyoto UniversityKyotoJapan

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