2009
DOI: 10.1590/s0100-84042009000100003
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Morphometric analysis of the Brasiliorchis picta complex (Orchidaceae)

Abstract: -(Morphometric analysis of the Brasiliorchis picta complex (Orchidaceae)). One of the largest genera of Orchidaceae in the Neotropics with about 450 species, Maxillaria presents several taxonomic uncertainties about its generic circumscription and the delimitation of species groups, mainly due to the large variability of some species. The present study aims at verifying the morphological variation and species delimitation in the Brasiliorchis picta complex, a recent new genus derived from Maxillaria, using mor… Show more

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Cited by 8 publications
(8 citation statements)
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“…() and taxonomic revison according Koehler, Singer & Amaral (); and within B rasiliorchis from Whitten et al . () and Pinheiro & Barros (). Values above branches in (B) are bootstrap percentages ≥ 50%.…”
Section: Discussionmentioning
confidence: 95%
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“…() and taxonomic revison according Koehler, Singer & Amaral (); and within B rasiliorchis from Whitten et al . () and Pinheiro & Barros (). Values above branches in (B) are bootstrap percentages ≥ 50%.…”
Section: Discussionmentioning
confidence: 95%
“…The cytogenetic data presented here have been mapped against an inferred phylogenetic tree (Fig. 4) based on the generic relationships of Whitten et al (2007) and species relationships within Christensonella from Koehler et al (2008) and within Brasiliorchis from Whitten et al (2007) and Pinheiro & Barros (2009).…”
Section: Discussionmentioning
confidence: 99%
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“…Floral characters are here analyzed using a combination of Principal Component Analysis (PCA), Canonical Variant Analysis (CVA), Discriminant Analysis (DA), and Cluster Analysis (CA) in a four‐step approach for detection of the most informative characters (James & McCulloch, ; Henderson, ). These methods offer sufficient sensitivity to differentiate floral shape variation, and have been used in recent morphometric studies (Naczi et al, ; Borba et al, ; Henderson, , 2006; Gage & Wilkin, ; Costa et al, ; Pinheiro & Barros, ; Sharma & Pandit, ; Castelo & Galetto, ; Domínguez et al, ; Renner et al, ; Rodrigues et al, ; Menezes et al, ). Using previously recognised qualitative characters, the current study attempts to establish morphological limits among entities assigned to U .…”
mentioning
confidence: 99%
“…Esta similaridade atuaria condicionando o desenvolvimento das plantas, caso as diferenças morfológicas sejam somente fenotípicas, ou selecionando indivíduos aptos a se estabelecerem no local, caso exista uma base genética para a variação morfológica. Pinheiro & Barros (2009), mesmo não conseguindo diferenciar espécies de Brasiliorchis (orquidaceae) com análises morfométricas, não propuseram a sinonimização delas. De modo similar, Trovó et al (2008) evidenciaram segregação entre populações de Actinocephalus polyanthus (Eriocaulaceae), mas não subdividiram a espécie.…”
unclassified