Phylogenetics of Papaver and related genera based on DNA sequences from ITS nuclear ribosomal DNA and plastid trnL intron and trnL-F intergenic spacers.

ABSTRACT:

Background and aims

Representatives from Papaver, Roemeria, Stylomecon and Meconopsis were studied to elucidate phylogenetic relationships between Papaver and these closely allied genera.

Methods

Two molecular data sets were used individually and combined and included sequences from the internally transcribed spacer region (ITS) of 18S-26S nuclear ribosomal DNA and the trnL intron and the trnL-trnF intergenic spacer region of plastid DNA.

Key results

Parsimony analysis demonstrated that the genus is not monophyletic unless the closely related Roemeria, Stylomecon and Meconopsis cambrica are included in a revised circumscription of Papaver. Three distinct clades are resolved in a combined ITS and trnL-F analysis. Clade 1 consists of Papaver sect. Meconella and Asian Me

SUBMITTER: Carolan JC 

PROVIDER: S-EPMC2803553 | biostudies-literature | 2006 Jul

REPOSITORIES: biostudies-literature