Article

Plant Systematics and Evolution

, Volume 206, Issue 1, pp 393-410

First online:

Chloroplastrps16 intron phylogeny of the tribeSileneae (Caryophyllaceae)

  • Bengt OxelmanAffiliated withDepartment of Systematic Botany
  • , Magnus LidénAffiliated withDepartment of Systematic Botany
  • , Daniel BerglundAffiliated withDepartment of Systematic Botany

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Abstract

Intron sequences of the chloroplast generps16 from 46 species were used to examine phylogenetic relationships indicated by nrDNA ITS sequence variation in the tribeSileneae (Caryophyllaceae, Caryophylloideae). This region has previously not been utilized for phylogenetic purposes but the results presented here suggest that it is a consistent and valuable complement to the ITS sequences. Therps16 intron trees are largely congruent with the ITS trees. All the major hypotheses suggested by the ITS data are supported, often at similar bootstrap levels. The joint usage ofrps16 intron and ITS sequences provides a powerful tool for resolving many of the difficult taxonomic issues in the tribeSileneae.

Key words

Caryophyllaceae Sileneae Silene Lychnis Cucubalus Petrocoptis Agrostemma Eudianthe Melandrium rps16 intron sequences multiple sequence alignment