Chloroplast DNA phylogeny and biogeography of Lepidium (Brassicaceae)

DC FieldValueLanguage
dc.contributor.authorMummenhoff, K
dc.contributor.authorBruggemann, H
dc.contributor.authorBowman, JL
dc.date.accessioned2021-12-23T16:13:35Z-
dc.date.available2021-12-23T16:13:35Z-
dc.date.issued2001
dc.identifier.issn00029122
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/10640-
dc.description.abstractTwo intergenic spacers, trnT-trnL and trnL-trnF, and the trnL intron of cpDNA were sequenced to study phylogenetic relationships and biogeography of 73 Lepidium taxa. Insertions/deletions of greater than or equal to3 bp (base pairs) provided reliable phylogenetic information whereas indels less than or equal to2 bp, probably originating from slipped-strand mispairing, are prone to parallelism in the context of our phylogenetic framework. For the first time, an hypothesis of the genus Lepidium is proposed based on molecular phylogeny, in contrast to previous classification schemes into sections and greges (the latter category represents groups of related species within a given geographic region), which are based mainly on fruit characters. Only a few of the taxa as delimited in the traditional systems represent monophyletic lineages. The proposed phylogeny would suggest three main lineages, corresponding to (1) sections Lepia and Cardaria, (2) grex Monoplocoidea from Australia, and (3) remaining taxa, representing the bulk of Lepidium species with more or less resolved sublineages that sometimes represent geographical correspondence. The fossil data, easily dispersible mucilaginous seeds, widespread autogamous breeding systems, and low levels of sequence divergence between species from different continents or islands suggest a rapid radiation of Lepidium by long-distance dispersal in the Pliocene/Pleistocene. As a consequence of climatic changes in this geological epoch, arid/semiarid areas were established, providing favorable conditions for the radiation of Lepidium by which the genus attained its worldwide distribution.
dc.language.isoen
dc.publisherWILEY
dc.relation.ispartofAMERICAN JOURNAL OF BOTANY
dc.subjectARABIDOPSIS
dc.subjectbiogeography
dc.subjectBRASSICACEAE
dc.subjectchloroplast DNA
dc.subjectCRUCIFERAE
dc.subjectEVOLUTION
dc.subjectGENERA
dc.subjectLepidium
dc.subjectNONCODING REGIONS
dc.subjectNORTH-AMERICAN ORIGIN
dc.subjectphylogenetics
dc.subjectPlant Sciences
dc.subjectRESTRICTION SITE VARIATION
dc.subjectSEQUENCES
dc.subjectSYSTEMATICS
dc.subjecttrnL intron
dc.subjecttrnL-trnF spacer
dc.subjecttrnT-trnL spacer
dc.titleChloroplast DNA phylogeny and biogeography of Lepidium (Brassicaceae)
dc.typejournal article
dc.identifier.doi10.2307/3558431
dc.identifier.isiISI:000172277500012
dc.description.volume88
dc.description.issue11
dc.description.startpage2051
dc.description.endpage2063
dc.contributor.orcid0000-0001-7347-3691
dc.contributor.orcid0000-0002-8449-1593
dc.identifier.eissn15372197
dc.publisher.place111 RIVER ST, HOBOKEN 07030-5774, NJ USA
dcterms.isPartOf.abbreviationAm. J. Bot.
crisitem.author.deptFB 05 - Biologie/Chemie-
crisitem.author.deptidfb05-
crisitem.author.orcid0000-0002-8449-1593-
crisitem.author.parentorgUniversität Osnabrück-
crisitem.author.netidMuKl919-
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