Morphoanatomy of the leaflets of the Hymenaea clade (Fabaceae: Detarioideae) reveals their potential for taxonomic and phylogenetic studies

Abstract The Hymenaea clade is part of the resin-producing clade of Fabaceae subfamily Detarioideae and is composed of three genera distributed mainly in tropical regions of Africa and South America. Anatomical characteristics of the leaflets are known for just a few representatives of this clade. T...

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Veröffentlicht in:Botanical journal of the Linnean Society 2018-04, Vol.187 (1), p.87-98
Hauptverfasser: Pinto, Rafael B, Lusa, Makeli G, Mansano, Vidal de F, Tozzi, Ana Maria G de Azevedo, Mayer, Juliana Lischka Sampaio
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container_issue 1
container_start_page 87
container_title Botanical journal of the Linnean Society
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creator Pinto, Rafael B
Lusa, Makeli G
Mansano, Vidal de F
Tozzi, Ana Maria G de Azevedo
Mayer, Juliana Lischka Sampaio
description Abstract The Hymenaea clade is part of the resin-producing clade of Fabaceae subfamily Detarioideae and is composed of three genera distributed mainly in tropical regions of Africa and South America. Anatomical characteristics of the leaflets are known for just a few representatives of this clade. This study aimed to improve this knowledge with morphoanatomical and histochemical characterizations of several species of Guibourtia, Hymenaea and Peltogyne. Our results support previous findings related to the presence of glandular cavities in Hymenaea and also add new evidence of the presence of these cavities in Guibourtia and Peltogyne. Absence of cavities was verified for H. velutina and P. catingae. Morphoanatomical characterization of the internerval region and histochemical analyses of the epidermis proved useful in delimiting species in the three genera. The position of the cavities in the leaflet lamina was also relevant in differentiating the three genera of this clade from other representatives of the subfamily. Our results contribute to the process of searching for features with phylogenetic signals and will be included in further phylogenetic analyses.
doi_str_mv 10.1093/botlinnean/boy007
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source Oxford University Press Journals All Titles (1996-Current)
subjects Cavities
Detarioideae
Epidermis
Fabaceae
Genera
Hymenaea
Phylogenetics
Phylogeny
Signal processing
Tropical environment
Tropical environments
title Morphoanatomy of the leaflets of the Hymenaea clade (Fabaceae: Detarioideae) reveals their potential for taxonomic and phylogenetic studies
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