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Circumscription of Primula subgenus auganthus (Primulaceae) based on chloroplast DNA sequences

Journal of Systematics and Evolution 2010年第2期48卷 123-132页

作者： 1Hai-Fei YAN 2Chong-Hua HE 3Ching-I PENG 1Chi-Ming HU 2Gang HAO 1(South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,China) 2(College of Life Sciences,South China Agricultural University,Guangzhou 510642,China) 3(Research Center for Biodiversity,Academia Sinica,Nankang,Taipei 115,China) (South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 China) (College of Life Sciences South China Agricultural University Guangzhou 510642 China) (Research Center for Biodiversity Academia Sinica Nankang Taipei 115 China)

Recent molecular phylogenetic analyses of Primula have greatly enhanced our understanding of the infrageneric relationships of the genus,but the subgenera auganthus and Carolinella remain meagerly sampled and poorly *** the present study,nucleotide sequence data of three chloroplast DNA regions (matK,rps16,and trnL-F) were used to infer phylogenetic relationships of the subgenera auganthus and *** data were acquired and analyzed for 70 species of Primula and its close *** data matrix included 29 species (42%) of subgenus auganthus and five species (50%) from subgenus *** analyses on these data showed that the sampled species of the subgenus Carolinella do not form a monophyletic clade,but are dispersed among the species of the subgenus ***,neither subgenus auganthus nor Carolinella is monophyletic under their current *** distinctive calyptrate capsule that was previously used as a diagnostic criterion for subgenus Carolinella was inferred to have evolved multiple times in Primula based on the *** analysis also confirmed that Cortusa is nested within subgenus *** therefore suggest a revised circumscription of subgenus auganthus to include subgenus Carolinella and the genus *** clades were identified with this broadly defined subgenus auganthus by the phylogenetic analyses,but their relationships remain incompletely resolved.

关键词： auganthus calyptrate capsule Carolinella circumscription Primula Primulaceae

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