Towards a natural classification of Sapotaceae subfamily Chrysophylloideae in the Neotropics

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MARC

de Faria, Aparecida Donisete (author)

Towards a natural classification of Sapotaceae subfamily Chrysophylloideae in the Neotropics

Article/chapterEnglish2017

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2017-08-31
Oxford University Press (OUP),2017
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LIBRIS-ID:oai:DiVA.org:nrm-2443
https://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-2443URI
https://doi.org/10.1093/botlinnean/box042DOI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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Generic limits of Chrysophyllum and Pouteria (Chrysophylloideae, Sapotaceae) have been found to be untenable. We here search for natural lineages in Neotropical Chrysophylloideae by sampling 101 terminals for molecular sequences of nuclear ribosomal DNA (external and internal transcribed spacer), the nuclear gene RPB2 and 17 morphological characters. Data were analysed with Bayesian inference and parsimony jackknifing. Morphological traits were finally optimized onto the tree to identify the most coherent characters. The resulting phylogenetic tree suggests that the limits of the well-known genera Chrysophyllum and Pouteria must be amended. Diploon, Ecclinusa and Elaeoluma can be maintained and Chrysophyllum sections Ragala section Prieurella and the satellite gen- era Achrouteria, Cornuella, Martiusella and Nemaluma merit generic resurrection. Lucuma may be restored if the type species belongs to the clade. The accepted genera Chromolucuma, Pradosia and Sarcaulus gain strong clade support, but are embedded in a core clade of Pouteria and may be relegated to the subgeneric level if morphologi- cal studies cannot provide evidence concurring with narrow generic concepts. Circumscriptions of Micropholis and Chrysophyllum sections Chrysophyllum and Villocuspis remain unclear and must be explored by using an extended taxon sampling. We predict that yet-to-be-analysed species of Pouteria sections Franchetella, Gayella, Oxythece and Pouteria and members of the currently accepted genera Chromolucuma, Pradosia and Sarcaulus will fall inside the core clade of Pouteria when analysed.

Subject headings and genre

NATURVETENSKAP Biologi Biologisk systematik hsv//swe
NATURAL SCIENCES Biological Sciences Biological Systematics hsv//eng
Diversity of life
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Pirani, Jóse Rubens (author)
Lahoz da Silva Ribeiro, José E. (author)
Nylinder, Stephan (author)
Terra-Araujo, Mário H. (author)
Vieira, Pedro P. (author)
Swenson, Ulf,1959-Naturhistoriska riksmuseet,Enheten för botanik(Swepub:nrm)ulfswens (author)
Naturhistoriska riksmuseetEnheten för botanik (creator_code:org_t)

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In:Botanical journal of the Linnean Society: Oxford University Press (OUP)185, s. 27-550024-40741095-8339

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By the author/editor: de Faria, Aparec ...; Pirani, Jóse Rub ...; Lahoz da Silva R ...; Nylinder, Stepha ...; Terra-Araujo, Má ...; Vieira, Pedro P.; show more...; Swenson, Ulf, 19 ...; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Biological Syste ...

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By the university: Swedish Museum of Natural History

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