Phylogenetic relationships within Silene (Caryophyllaceae) section Physolychnis

2011/08/01 by Anna Petri, Bengt Oxelman · 5 citations
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Plant Diversity and Evolution #Chromosomal and Genetic Variations #Plant and Fungal Species Descriptions

paper · doi:10.1002/tax.604002

Abstract

Abstract Phylogenetic relationships within Silene sect. Physolychnis are investigated using DNA sequences from two low‐copy nuclear regions and three plastid regions. We expand the circumscription of Physolychnis to include also Siberian and Eurasian taxa, with S . zawadzkii and S . uralensis as delimiters of the section. Two main clades are identified within Physolychnis , the Siberian S . ajanensis group and an Asian/American clade. Several taxa, previously classified to sect. Odontopetalae , sect. Occidentales , and sect. Morrisonmontanae , are shown to belong to the Asian/American clade, which otherwise corresponds to Bocquet's (1969) circumscription of sect. Physolychnis . Silene sect. Physolychnis also includes several additional, mainly Asian taxa (e.g., S . davidii , S . seoulensis , S . keiskei , S . viscosa , S . quadriloba , and homoeologues from S . songarica , S . firma , and S . tolmatchevii ). Several putative allopolyploids are identified, in several cases stemming from crosses between the two main clades. The two allotetraploids S . involucrata and S . sachalinensis , although morphologically and geographically distinct, have indistinguishable ancestries.

Cited by

• A new taxonomic backbone for the infrageneric classification of the species‐rich genus Silene (Caryophyllaceae)
• A phylogenetic circumscription of Silene sect. Siphonomorpha (Caryophyllaceae) in the Mediterranean Basin
• Intergeneric relationships within the tribe Alsineae (Caryophyllaceae) as inferred from nrDNA ITS and cpDNArps16 sequences: A step toward a phylogenetically based generic system
• Phylogenetic relationships and the identification of allopolyploidy in circumpolar Silene sect. Physolychnis
• Phylogenetic analysis suggests early divergence followed by convergent morphological evolution in the Silene sections Odontopetalae and Sordidae (Caryophyllaceae)

Related

• Phylogenetic relationships and the identification of allopolyploidy in circumpolar Silene sect. Physolychnis
• A new taxonomic backbone for the infrageneric classification of the species‐rich genus Silene (Caryophyllaceae)
• Phylogenetic analysis suggests early divergence followed by convergent morphological evolution in the Silene sections Odontopetalae and Sordidae (Caryophyllaceae)
• A phylogenetic circumscription of Silene sect. Siphonomorpha (Caryophyllaceae) in the Mediterranean Basin
• Molecular systematics and character evolution in Caryophyllaceae