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Biosystematic studies on the family tofieldiaceae III. classification of tofieldia nuda into three species and three varieties

Title
Biosystematic studies on the family tofieldiaceae III. classification of tofieldia nuda into three species and three varieties
Authors
Tamura M.N.Fuse S.Lee N.S.Kim J.O.Yamashita J.Ishii T.
Ewha Authors
이남숙
SCOPUS Author ID
이남숙scopus
Issue Date
2011
Journal Title
Taxon
ISSN
0040-0262JCR Link
Citation
vol. 60, no. 5, pp. 1339 - 1348
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
In order to reexamine the taxonomic coherence of Tofieldia nuda, which shows wide morphological variation within the species, we analysed sequences of plastid trnK, trnL, and trnL-F and nuclear ITS of T. nuda and seven further species of Tofieldia. We found that T. nuda contains three different lineages supported with 99% or 100% bootstrap value: one lineage sister to T. coccinea (100%), one linage sister to the Chinese species T. divergens and T. thibetica (98%-100%), and a third lineage sister to the second lineage plus T. divergens and T. thibetica (99%-100%). As the wide morphological gaps among T. nuda, T. coccinea, T. divergens, and T. thibetica prevent us from considering them as conspecific with one another, the three lineages of T. nuda are regarded as different at the species level. The first lineage corresponds to T. nuda s.str., the second to T. furusei (formerly T. nuda var. furusei), and the third to T. yoshiiana, often considered a synonym of T. nuda. Tofieldia yoshiiana is further divided into three varieties, var. yoshiiana, var. kanwonensis comb. nov. and var. hyugaensis var. nov. A key to the three species and varieties is provided.
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자연과학대학 > 생명과학전공 > Journal papers
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