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

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 p...

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Bibliographic Details
Published inPlant systematics and evolution Vol. 255; no. 3/4; pp. 215 - 224
Main Authors Martins, L., Hellwig, F. H.
Format Journal Article
LanguageEnglish
Published Heidelberg Springer 01.09.2005
Springer Nature B.V
Subjects
Asteraceae
Biological taxonomies
Botanical gardens
Chromosome number
Chromosomes
Deoxyribonucleic acid
DNA
Evolution
Gene sequencing
Maximum parsimony
Nucleotide sequence
Phylogenetics
Phylogeny
Plants
Ribosomal DNA
Sequencing
Serratula
Spacer
Species
Taxa
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Summary: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 2n = 26, and the relationship between this species and the Rhaponticum group is discussed from a morphological and karyological point of view.
ISSN:0378-2697
1615-6110
2199-6881
DOI:10.1007/s00606-005-0342-4