A morpho-molecular revision of Leucoloma (Dicranaceae, Bryophyta) in Brazil

Gama, Renato; Stech, Michael; Schäfer‐Verwimp, Alfons; Peralta, Denílson Fernandes

doi:10.1127/nova_hedwigia/2015/0238

Cited by 7 publications

(2 citation statements)

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“…Genomic DNA was extracted with the NucleoSpin Plant II Kit (Macherey‐Nagel, Düren, Germany). PCR amplification protocols followed Gama, Stech, Schäfer‐Verwimp, and Peralta (). Sequencing was performed by Macrogen, Inc. (http://www.macrogen.com).…”

Section: Methodsmentioning

confidence: 99%

Ecological niche comparison and molecular phylogeny segregate the invasive moss species Campylopus introflexus (Leucobryaceae, Bryophyta) from its closest relatives

Gama

Aguirre‐Gutiérrez

Stech

2017

Ecology and Evolution

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The delimitation of the invasive moss species Campylopus introflexus from its closest relative, Campylopus pilifer, has been long debated based on morphology. Previous molecular phylogenetic reconstructions based on the nuclear ribosomal internal transcribed spacers (ITS) 1 and 2 showed that C. pilifer is split into an Old World and a New World lineage, but remained partly inconclusive concerning the relationships between these two clades and C. introflexus. Analyses of an extended ITS dataset displayed statistically supported incongruence between ITS1 and ITS2. ITS1 separates the New World clade of C. pilifer from a clade comprising C. introflexus and the Old World C. pilifer. Ancestral state reconstruction showed that this topology is morphologically supported by differences in the height of the dorsal costal lamellae in leaf cross‐section (despite some overlap). ITS2, in contrast, supports the current morphological species concept, i.e., separating C. introflexus from C. pilifer, which is morphologically supported by the orientation of the hyaline hair point at leaf apex as well as costal lamellae height. Re‐analysis of published and newly generated plastid atpB‐rbcL spacer sequences supported the three ITS lineages. Ecological niche modeling proved a useful approach and showed that all three molecular lineages occupy distinct environmental spaces that are similar, but undoubtedly not equivalent. In line with the ITS1 topology, the C. pilifer lineage from the New World occupies the most distinct environmental niche, whereas the niches of Old World C. pilifer and C. introflexus are very similar. Taking the inferences from ecological niche comparisons, phylogenetics, and morphology together, we conclude that all three molecular lineages represent different taxa that should be recognized as independent species, viz. C. introflexus, C. pilifer (Old World clade), and the reinstated C. lamellatus Mont. (New World clade).

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Section: Methodsmentioning

confidence: 99%

Ecological niche comparison and molecular phylogeny segregate the invasive moss species Campylopus introflexus (Leucobryaceae, Bryophyta) from its closest relatives

Gama

Aguirre‐Gutiérrez

Stech

2017

Ecology and Evolution

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“…fragilis (Leucobryaceae) apresenta ocorrência no Brasil apenas para os Estados do Piauí e Bahia, neste último ocorrendo na Chapada Diamantina, em Campo Rupestre (Valente et al 2011), sendo então a primeira referência dessa subespécie para Floresta Ombrófila Densa. Leucoloma triforme (Dicranaceae) é uma espécie endêmica do Brasil, tem ocorrência no Centro Sul, preferencialmente em fragmentos de Floresta Ombrófila (Gama et al 2015).…”

Section: Discussionunclassified

Musgos (Bryophyta) da Estação Ecológica Wenceslau Guimarães, Estado da Bahia, Brasil

Evangelista

Valente

Bastos

et al. 2019

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RESUMO No presente artigo está sendo apresentado o levantamento florístico dos musgos (Bryophyta) da Estação Ecológica Wenceslau Guimarães, sul do Estado da Bahia, em um fragmento de Floresta Ombrófila Densa montana. Foram analisadas 540 amostras e identificadas 93 espécies, distribuídas em 57 gêneros e 23 famílias. Trichosteleum cyparissoides (Hornsch.) H. Rob tem seu primeiro registro para a região Nordeste e Brittonodoxa lithophila (Hornsch.) W. R. Buck et al. para o Estado da Bahia, ambas pertencentes a família Sematophyllaceae.

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