Tibouchina papyrus (Pohl) Toledo, 1952 (Melastomataceae): distribution extension to the northern part of Brazilian Cerrado

Maracahipes, Leandro; Cianciaruso, Marcus Vinícius; Lenza, Eddie; Pinto, José Roberto Rodrigues; Marimon, Beatriz Schwantes; Santos, Tassiana Reis Rodrigues dos

doi:10.15560/8.4.765

Cited by 2 publications

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References 6 publications

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“…Tibouchina papyrus (Pohl) Toledo (Melastomataceae), known as ''pau-papel,'' is an endemic tree species that occurs in the vegetation subtype known as ''campo rupestre'' of the Cerrado biome (Montoro and Santos 2007). The species has a restricted and disjunct distribution, and it is known to occur in a few localities, mainly in Serra de Natividade, in the Southeast Tocantins State, and in the Serra Dourada and Serra dos Pirineus in western Goiás State (Telles et al 2011;Maracahipes et al 2012). Due to its restricted distribution, this species was framed by the criterion D2 IUCN (2001) and categorized as vulnerable in the list of endangered plant species in Brazil (''Biodiversitas'' in 2005).…”

Section: Introductionmentioning

confidence: 99%

Fine-scale genetic structure in Tibouchina papyrus (Pohl) Toledo (Melastomataceae), an endemic and habitat-restricted species from Central Brazil

et al. 2014

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Spatial genetic structure (SGS) is the non-random distribution of genotypes in space, which is usually correlated with life history traits and is driven by ecological and demographic processes. This study aimed to use spatial statistical analysis methods to assess genetic diversity and spatial genetic structure in three known disjunct localities where Tibouchina papyrus occurs, varying in aggregation and density of individuals and in landscape characteristics. This small tree species is endemic to the ''Cerrado'' (savannas) region of Central Brazil and is also restricted to elevation rock fields (''campo rupestre''). Therefore, it can be considered a model species to help guide studies on Cerrado endemic plants that are isolated with geographic distributions restricted to this highland habitat. The analyses were based on the polymorphisms at ten microsatellite loci. Our working hypothesis was that wind-dispersed species, such as T. papyrus, present no or low SGS because of the long distance seed gene flow. The spatial genetic structure was indeed weak for two of the three populations. The intensity and shape of the SGS are related to density and aggregation (defined by Ripley's K statistic of spatial aggregation) of individuals in the three localities. Low SGS occurs in populations with aggregation patterns, corroborating the overall hypothesis, although in this species, this pattern depends on the landscape characteristics of each local population.

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Section: Introductionmentioning

confidence: 99%

Fine-scale genetic structure in Tibouchina papyrus (Pohl) Toledo (Melastomataceae), an endemic and habitat-restricted species from Central Brazil

et al. 2014

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<I>Leandra heteroporata</I>: a New Species from Tocantins, Brazil (Melastomataceae, Miconieae)

Reginato

2014

Systematic Botany

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Tibouchina papyrus (Pohl) Toledo, 1952 (Melastomataceae): distribution extension to the northern part of Brazilian Cerrado

Abstract: New records of Tibouchina papyrus for Mato Grosso State extend its distribution in the northern part of the Brazilian Savanna, contributing to the conservation of this species and the areas in which it occur.

Cited by 2 publications

References 6 publications

Fine-scale genetic structure in Tibouchina papyrus (Pohl) Toledo (Melastomataceae), an endemic and habitat-restricted species from Central Brazil

Fine-scale genetic structure in Tibouchina papyrus (Pohl) Toledo (Melastomataceae), an endemic and habitat-restricted species from Central Brazil

<I>Leandra heteroporata</I>: a New Species from Tocantins, Brazil (Melastomataceae, Miconieae)

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