What is the origin of the Scottish populations of the European endemicCherleria sedoides(Caryophyllaceae)?

Abstract

This version available http://nora.nerc.ac.uk/510777/ NERC has developed NORA to enable users to access research outputs wholly or partially funded by NERC. Copyright and other rights for material on this site are retained by the rights owners. Users should read the terms and conditions of use of this material at http://nora.nerc.ac.uk/policies.html#access This document is the author's final manuscript version of the journal article, incorporating any revisions agreed during the peer review process. Some differences between this and the publisher's version remain. You are advised to consult the publisher's version if you wish to cite from this article.The definitive version is available at http://www.maneyonline.com/ Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. What is the origin of the Scottish populations of the European endemic Cherleria sedoides L. (Caryophyllaceae)?Cherleria sedoides L. (Minuartia sedoides (L.) Hiern) is a montane perennial which, with some species in Minuartia sect. Spectabiles, is more closely related to Scleranthus than to other Minuartia species and is therefore best restored to the reinstated and redefined genus Cherleria. Reconstruction of the ancestral area of the clade containing C. sedoides suggests that it evolved in the Alps or the Balkan peninsula. The species now has an unusual distribution, being present in the mountains of southern Europe and Scotland but absent from the Arctic. Three historical scenarios which might have led to the presence of the species in Scotland are outlined and tested by a molecular analysis comparing Scottish populations with populations from the Pyrenees and the Alps. The sampled populations show little variation in ITS/ETS but much more in cpDNA. The latter reveals a major division between some Alpine material and the other Alpine, Pyrenean and Scottish plants. Once the anomalous Alpine haplotypes are excluded, Scottish populations are at least as variable as those from the Alps and Pyrenees, and are closely related to both. We conclude that they have not undergone a long period of isolation, nor have they originated by recent, long-distance dispersal from the Alps or Pyrenees. They appear to be derived from a metapopulation which was probably widespread at the Last Glacial Maximum and gave rise to the Alpine, Pyrenean and Scottish plants.

Range and niche expansion through multiple interspecific hybridization: a genotyping by sequencing analysis of Cherleria (Caryophyllaceae)

“…More detailed work on two species of the group provided evidence for hybridization. A study of C. sedoides L. [ 57 , 84 ] showed high chloroplast DNA (cpDNA) haplotype and nrDNA ribotype diversity throughout its wide range (including the Alps, the Balkan Peninsula, the Pyrenees, and Scotland). It also showed that the most common cpDNA haplotype clade most likely originated through hybridization of C. sedoides with an extinct species of the genus [ 57 ].…”

Range and niche expansion through multiple interspecific hybridization - a Genotyping by Sequencing analysis of Cherleria (Caryophyllaceae)

“…More detailed work on two species of the group provided evidence for hybridization. A study of C. sedoides L. (Valtueña et al 2015, Moore et al 2017 showed high chloroplast DNA (cpDNA) haplotype and nrDNA ribotype diversity throughout its wide range (including the Alps, the Balkan Peninsula, the Pyrenees, and Scotland). It also showed that the most common cpDNA haplotype clade most likely originated through hybridization of C. sedoides with an extinct species of the genus (Moore et al 2017).…”