TITLE

Phylogenetic relationships of the enigmatic species Serratula chinensis and Serratula forrestii (Asteraceae - Cardueae)

AUTHOR(S)
Martins, L.; Hellwig, F. H,
PUB. DATE
October 2005
SOURCE
Plant Systematics & Evolution;Oct2005, Vol. 255 Issue 3/4, p215
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The phylogenetic relationships of the Chinese species Serratula forrestii and S. chinensis within the subtribe Centaureinae (Asteraceae � Cardueae) were investigated based on nuclear ribosomal DNA external and internal transcribed spacer sequences. Results indicated that Serratula s. l. is clearly polyphyletic, none of the two species showing close affinities to either Serratula s. str. or Klasea, a genus traditionally included in Serratula. Serratula forrestii has a basal position within the subtribe and has retained most plesiomorphic character states. Serratula chinensis is related to the genera of the Rhaponticum group. Its chromosome number was determined as 2 n = 26, and the relationship between this species and the Rhapon-ticum group is discussed from a morphological and karyological point of view.
ACCESSION #
18632393

Tags: COMPOSITAE;  CAMPANULALES;  PLANTS -- Phylogeny;  PHYLOGENY;  DICOTYLEDONS

 

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