Vochysiaceae na Reserva Biológica de Poço das Antas, Silva Jardim, Rio de Janeiro, Brasil

Vianna, Maria Célia

doi:10.1590/2175-7860200657315

Cited by 7 publications

(5 citation statements)

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“…The studied species, Q. grandiflora , belongs to the family Vochysiaceae, occurring exclusively in tropical regions (Vianna, 2006 ). It is a common species in the Cerrado, observed in 85% of sampled areas in a study on the floristic composition of the Cerrado, conducted by Ratter et al ( 2003 ).…”

Section: Methodsmentioning

confidence: 99%

Genetic and Historical Colonization Analyses of an Endemic Savanna Tree, Qualea grandiflora, Reveal Ancient Connections Between Amazonian Savannas and Cerrado Core

et al. 2018

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The evolutionary processes underlying the high diversity and endemism in the Cerrado, the most extensive Neotropical savanna, remain unclear, including the factors promoting the presence and evolution of savanna enclaves in the Amazon forest. In this study, we investigated the effects of past climate changes on genetic diversity, dynamics of species range and the historical connections between the savanna enclaves and Cerrado core for Qualea grandiflora, a tree species widely distributed in the biome. Totally, 40 populations distributed in the Cerrado core and Amazon savannas were analyzed using chloroplast and nuclear DNA sequences. We used phylogeographic, coalescent and ecological niche modeling approaches. Genetic data revealed a phylogeographic structure shaped by Pleistocene climatic oscillations. An eastern-western split in the Cerrado core was observed. The central portion of the Cerrado core harbored most of the sampled diversity for cpDNA. Ecological niche models predicted the presence of a large historical refuge in this region and multiple small refuges in peripheral areas. Relaxed Random Walk (RRW) models indicated the ancestral population in the north-western border of the central portion of the Cerrado core and cyclical dynamics of colonization related to Pleistocene climatic oscillations. Central and western ancient connections between Cerrado core and Amazonian savannas were observed. No evidence of connections among the Amazonian savannas was detected. Our study highlights the importance of Pleistocene climatic oscillations for structuring the genetic diversity of Q. grandiflora and complex evolutionary history of ecotonal areas in the Cerrado. Our results do not support the recent replacement of a large area in the Amazon forest by savanna vegetation. The Amazonian savannas appear to be fragmented and isolated from each other, evolving independently a long ago.

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Section: Methodsmentioning

confidence: 99%

Genetic and Historical Colonization Analyses of an Endemic Savanna Tree, Qualea grandiflora, Reveal Ancient Connections Between Amazonian Savannas and Cerrado Core

et al. 2018

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“…A identificação dos táxons foi baseada em suas características morfológicas, comparando-as com exsicatas e fotos de espécimes-tipo, além de bibliografias especializadas (e.g. Warming 1875, Stafleu 1948, 1952, 1953, 1954, Martins 1981, Kawasaki 1995, França 1996, Barbosa 1999, Passos & França 2003, Vianna 2006, Yamamoto 2009, Shimizu & Yamamoto 2012, Souza 2014, Gonçalves et al 2017.…”

Section: Methodsunclassified

A família Vochysiaceae na Serra dos `Pireneus, Goiás, Brasil

Teixeira

Teles

2022

Iheringia Ser Bot

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RESUMO -No presente trabalho é apresentado o tratamento taxonômico para as espécies de Vochysiaceae ocorrentes na Serra dos Pireneus, Goiás, Brasil. Foram feitas coletas quinzenais de fevereiro de 2015 a fevereiro de 2016 em diverentes fitofisionomias da área. Todo material coletado foi incorporado ao acervo do herbário UFG. Também foram analisadas coleções de Vochysiaceae de outros herbários provenientes da área de estudo. A família é representada na Serra dos Pireneus por 15 espécies distribuídas em quatro gêneros: Callisthene (2 spp.), Qualea (4 spp.), Salvertia (1 sp.) e Vochysia (8 spp.). São apresentadas descrições morfológicas, comentários taxonômicos, distribuição geográfica e, chaves para identificação e ilustrações das espécies.

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“…Thereafter, 44 new species were described. The family Vochysiaceae and also this genus have three diversity centers: Guyana-Amazon Region, Atlantic Forest and Central Brazil (Vianna 2006). In this last region, a new species was found in Serra do Cipó area, located within the Espinhaço Range in the state of Minas Gerais (Giulietti et al 1987).…”

Section: Introductionmentioning

confidence: 99%

Vochysia microphylla (Vochysiaceae), a new species from Serra do Cipó, Minas Gerais, Brazil

Shimizu¹,

Rodrigues²,

Yamamoto³

2012

Phytotaxa

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Vochysia microphylla is described and illustrated as a new species. It belongs to Vochysia section Ciliantha subsection Lutescentes. This new species is apparently endemic to the "campos rupestres" vegetation in Morro do Pilar and Itambé do Mato Dentro, Serra do Cipó, Minas Gerais, Brazil. ResumoVochysia microphylla é descrita e ilustrada como uma nova espécie. Ela pertence a Vochysia seção Ciliantha subseção Lutescentes. Essa nova espécie provavelmente é endêmica da vegetação dos campos rupestres em Morro do Pilar e Itambé do Mato Dentro, Serra do Cipó, Minas Gerais, Brasil.

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Vochysiaceae na Reserva Biológica de Poço das Antas, Silva Jardim, Rio de Janeiro, Brasil

Cited by 7 publications

References 0 publications

Genetic and Historical Colonization Analyses of an Endemic Savanna Tree, Qualea grandiflora, Reveal Ancient Connections Between Amazonian Savannas and Cerrado Core

Genetic and Historical Colonization Analyses of an Endemic Savanna Tree, Qualea grandiflora, Reveal Ancient Connections Between Amazonian Savannas and Cerrado Core

A família Vochysiaceae na Serra dos `Pireneus, Goiás, Brasil

<p><strong><em>Vochysia microphylla</em></strong><strong> (Vochysiaceae), a new species from Serra do Cipó, Minas Gerais, Brazil</strong></p>

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