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dc.contributor.authorFischer, Eberhard
dc.contributor.authorAbrahamczyk, Stefan
dc.contributor.authorHolstein, Norbert
dc.contributor.authorJanssens, Steven B
dc.date.accessioned2021-12-17T14:45:47Z
dc.date.available2021-12-17T14:45:47Z
dc.date.issued2021-09-06
dc.date.submitted2021-05-27
dc.identifier.citationFischer, E., Abrahamczyk, S., Holstein, N. and Janssens, S.B. (2021), Evolution of Impatiens (Balsaminaceae) in the Albertine Rift – The endemic Impatiens purpureoviolacea complex consists of ten species. TAXON, 70: 1273-1299. https://doi.org/10.1002/tax.12566en_US
dc.identifier.issn0040-0262
dc.identifier.doi10.1002/tax.12566
dc.identifier.urihttp://hdl.handle.net/10141/622956
dc.description.abstractThe Albertine Rift harbours a highly diverse flora with numerous endemic species. An important component of the forestunderstorey is the herbaceous genusImpatiens. Fieldwork in Burundi, the Democratic Republic of the Congo and Rwanda as well asmorphological studies indicated that the Albertine Rift endemicImpatiens purpureoviolacearepresents a species complex. We ana-lyzed the hidden diversity of the complex using morphological and molecular data supplemented by herbarium studies. We found thattheImpatiens purpureoviolaceacomplex can be divided into morphologically and phylogenetically well characterized clades contain-ing ten species and a natural hybrid. We describe all of these species, provide a species key and analyze their evolutionary history.BesideImpatiens purpureoviolaceaandI. gesneroidea, the already describedI. urundiensisis resurrected from synonymy. Two va-rieties,Impatiens purpureoviolaceavar.longicalcarataandI. gesneroideavar.superglabraare raised to species status, and five newspecies (Impatiens elwiraurzulae,I. lotteri,I. ludewigii,I. lutzmannii,I. versicolor) and a new natural hybrid (I. ×troupinii) are de-scribed. Within the mostly insect-pollinated species of the clade, two bird-pollinated species (Impatiens gesneroidea,I. super-glabra) evolved independently. The clade split from its sister taxon in the Pliocene and started diversifying during the Pliocene/Pleistocene transition in parallel to an increased mountain uplifting and volcanic activity in the Albertine Rift. It further diversifiedduring the Pleistocene, likely due to the changes in forest cover and connectivity induced by climatic fluctuations.en_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.rightsopenAccessen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleEvolution of Impatiens (Balsaminaceae) in the Albertine Rift – The endemic Impatiens purpureoviolacea complex consists of ten speciesen_US
dc.typeJournal Articleen_US
dc.identifier.eissn1996-8175
dc.identifier.journalTAXONen_US
dc.date.updated2021-11-24T11:19:08Z
dc.identifier.volume70en_US
dc.identifier.issue6en_US
dc.identifier.startpage1273en_US
elements.import.authorFischer, Eberhard
elements.import.authorAbrahamczyk, Stefan
elements.import.authorHolstein, Norbert
elements.import.authorJanssens, Steven B
dc.description.nhmThis is an open access article, available to all readers online, published under a creative commons licensing (https://creativecommons.org/licenses/by/4.0/).en_US
dc.subject.nhmBurundien_US
dc.subject.nhmDemocratic Republic of the Congoen_US
dc.subject.nhmEast Africa, endemicsen_US
dc.subject.nhmgeological activityen_US
dc.subject.nhmnew speciesen_US
dc.subject.nhmplant taxonomyen_US
dc.subject.nhmRwandaen_US
dc.subject.nhmtropical mountain foresten_US


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