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dc.contributor.authorComes, Hans Peter
dc.contributor.authorColeman, Max
dc.contributor.authorAbbott, Richard J.
dc.date.accessioned2017-12-15T17:30:10Z
dc.date.available2017-12-15T17:30:10Z
dc.date.issued2017-12
dc.identifier251779449
dc.identifier72c13004-9d6c-4c91-8e02-8438cefa226d
dc.identifier85038085117
dc.identifier000423532700002
dc.identifier.citationComes , H P , Coleman , M & Abbott , R J 2017 , ' Recurrent origin of peripheral, coastal (sub)species of Mediterranean Senecio (Asteraceae) ' , Plant Ecology & Diversity , vol. 10 , no. 4 , pp. 253-271 . https://doi.org/10.1080/17550874.2017.1400127en
dc.identifier.issn1755-0874
dc.identifier.urihttps://hdl.handle.net/10023/12337
dc.descriptionThe work was funded in part by the Biotechnology and Biological Sciences Research Council (UK) in the form of a research studentship awarded to MC.en
dc.description.abstractBackground: It is argued that coastal endemic taxa may evolve in parallel at the periphery of the distributional range of a widespread species. Aims: We tested this hypothesis for the origins of three peripheral, coastal isolates of Senecio, S. glaucus ssp. glaucus (Israel), S. g. ssp. coronopifolius p.p. (Sicily), and S. hesperidium (Morocco), from widespread S. glaucus ssp. coronopifolius. We also determined the relative roles of selection vs. genetic drift in shaping phenotypic divergence in ssp. glaucus and S. hesperidium, using Lande’s test of neutral morphological change. Methods: We surveyed morphological and/or allozyme variation in the three peripheral isolates and mainly inland populations of S. g. ssp. coronopifolius. Results: Genetic data supported independent origins of the coastal taxa from nearby populations of ssp. coronopifolius. These descendant and ancestral populations showed pronounced morphological but weak genetic differentiation. Phenotypic similarities between ssp. glaucus (Israel) and S. hesperidium (Morocco) in plant height and floral traits may have resulted from parallel divergent selection from ssp. coronopifolius, though drift remains an alternative cause in S. hesperidium. Conclusions: Our results indicate parallel ecotype formation and (sub)speciation in Senecio in which primarily selective vs. neutral determinants promoted the recurrent origin of coastal types in, respectively, Israel and Morocco.
dc.format.extent1136887
dc.language.isoeng
dc.relation.ispartofPlant Ecology & Diversityen
dc.subjectAllozyme diversityen
dc.subjectAsteraceaeen
dc.subjectGenetic driften
dc.subjectMediterraneanen
dc.subjectMorphometricsen
dc.subjectNatural selectionen
dc.subjectParallel speciationen
dc.subjectSenecioen
dc.subjectQH301 Biologyen
dc.subjectQH426 Geneticsen
dc.subjectE-NDASen
dc.subject.lccQH301en
dc.subject.lccQH426en
dc.titleRecurrent origin of peripheral, coastal (sub)species of Mediterranean Senecio (Asteraceae)en
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.identifier.doi10.1080/17550874.2017.1400127
dc.description.statusPeer revieweden


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