Carolan, James C. and Hook, Ingrid L.I. and Chanse, Mark W. and Kadereit, Joachim W. and Hodkinson, Trevor R. (2006) Phylogenetics of Papaver and Related Genera Based on DNA Sequences from ITS Nuclear Ribosomal DNA and Plastid trnL Intron and trnL–F Intergenic Spacers. Annals of Botany, 98 (1). pp. 141-155. ISSN 0305-7364

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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 Meconopsis. Clade 2 contains a group here identified as Papaver s.s., comprising sections Carinatae, Meconidium, Oxytona, Papaver, Pilosa, Pseudopilosa and Rhoeadium. Clade 3 consists of Papaver sect. Argemonidium and Roemeria refracta. A number of diagnostic indels support these groupings. Within clade 2, sects. Papaver and Rhoeadium are either not monophyletic or lack evidence supporting their monophyly. _ Conclusions The results of this molecular analysis indicate that a number of morphological characters such as valvate capsule dehiscence, dark or light filaments and sessile stigmatic discs have arisen in parallel. The phylogenetic trees are incongruent with the existing taxonomy of Papaver, and a revised classification is suggested.

Item Type:	Article
Keywords:	DNA; Meconopsis; nrITS; Papaver; phylogenetics; Roemeria; Stylomecon; trnL–F;
Academic Unit:	Faculty of Science and Engineering > Biology
Item ID:	7170
Identification Number:	https://doi.org/10.1093/aob/mcl079
Depositing User:	James Carolan
Date Deposited:	07 Jul 2016 11:43
Journal or Publication Title:	Annals of Botany
Publisher:	Oxford University Press
Refereed:	Yes
URI:	http://aob.oxfordjournals.org/
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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