Seed morphoanatomy and its systematic relevance to Tillandsioideae (Bromeliaceae)

Magalhães, Raquel Inocente; Mariath, Jorge Ernesto de Araújo

doi:10.1007/s00606-012-0688-3

Cited by 21 publications

(33 citation statements)

References 23 publications

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“…Vriesea incurvata inhabits humid places near waterfalls and streams, and the color of the flower bracts is the most important attractant for its pollinators, such as the hummingbird Phaethornis eurynome Lesson (Martinelli, ; Machado and Semir, ; Neves et al., ). The seeds have plumose appendages, which facilitate long‐distance dispersal (Smith and Downs, ; Magalhães and Mariath, ).…”

Section: Methodsmentioning

confidence: 99%

Ecological niche modeling and a lack of phylogeographic structure in Vriesea incurvata suggest historically stable areas in the southern Atlantic Forest

Aguiar-Melo

Zanella

Göetze

et al. 2019

American J of Botany

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Premise Despite the efforts to understand the processes that shape neotropical biodiversity, the complexity of certain biomes, such as the Atlantic Forest (AF), prevents the generalization of patterns. Initially, ecological niche modeling (ENM), with phylogeographic studies, identified past stable areas in the central and northern portions of the AF, while the southern portion was thought to be highly fragmented. Here, we examined the phylogeography, historical patterns, genetic diversity, and population structure of Vriesea incurvata, an endemic species of the southern portion of the AF. Methods We evaluated 149 individuals using two plastid DNA regions (cpDNA) and 13 nuclear microsatellite markers (nuSSRs) to access the historical patterns, genetic diversity, and structure of V. incurvata populations. We also conducted historical demography and ENM analyses. Results We found moderate to high genetic diversity and low population structure for both genomes. The cpDNA network revealed high haplotype sharing. The ENM suggested no drastic changes in suitable areas for V. incurvata occurrence, corroborating the finding of no phylogeographic structure. Conclusions Contrary to some studies, our results indicate that the southern AF was a historically stable climate region for V. incurvata occupation after southward colonization by the species. Past climatic changes probably did not cause structuring among its populations.

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Section: Methodsmentioning

confidence: 99%

Ecological niche modeling and a lack of phylogeographic structure in Vriesea incurvata suggest historically stable areas in the southern Atlantic Forest

Aguiar-Melo

Zanella

Göetze

et al. 2019

American J of Botany

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“…seeds dispersed by wind, tend to be small, light and may have appendices that favour buoyancy (Magalhães and Mariath, 2012; Barfuss et al ., 2016). However, although selective pressures are exerted on seed traits to adapt to local environments, seed traits are more conserved than other plant traits such as leaf size and plant height (Ackerly, 2009), and thus have been used to define taxonomic relationships (Smith and Downs, 1974; Magalhães and Mariath, 2012). Thus, seed traits can provide valuable insights into the ecology of a species and its evolutionary history, and this information may also be useful to predict possible effects of changing environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Seed traits favouring dispersal and establishment of six epiphyticTillandsia(Bromeliaceae) species

et al. 2018

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There are a number of studies describing the gross range of morpho-anatomical variability in epiphytic Tillandsia species, but the interspecific variation in seed traits remain largely unexplored, although these play an important role in determining dispersal and establishment success. In order to evaluate interspecific variation in seed morphology, anatomy and germination, we sampled six Tillandsia species from the Yucatan peninsula, Mexico, distributed along a precipitation gradient. We studied morpho-anatomical traits (seed length, seed mass, ratio of coma to seed, ratio of embryo to endosperm), seed terminal velocity in still air, and performed histochemical analyses and germination trials under controlled conditions. Tillandsia recurvata differs from the other five species in the structure of the plumose coma; it was the only species lacking an endosperm and showed distinct seedling development. Among the species, bigger seeds were related to longer comas, and had higher germinability. Overall, seed terminal velocity was invariably slow, compared with reports of other anemochorous species, suggesting a high dispersal potential. Taxonomical and ecological implications of our results are discussed.

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“…The recent reports of the complete genomes of Ananas comosus (L.) Merr.) Versieux et al, 2010;De Faria, Vieira & Wendt, 2012;Magalhães & Mariath, 2012;Santos-Silva et al, 2013;Nogueira et al, 2015). Gilmartin & Brown, 1987;Varadarajan & Gilmartin, 1988).…”

Section: Evolution and Phylogeneticsmentioning

confidence: 99%

“…The use of morphological data in phylogenetic analysis decreased for many years before being re-established in the last decade, when micro-and macromorphological traits began to be employed at inter-and infrageneric levels (De Faria et al, 2004;Hornung-Leoni & Sosa, 2008;Almeida et al, 2009;Aguirre-Santoro et al, 2015;Da Costa et al, 2015;Donad ıo, Pozner & Giussani, 2015;Monteiro, Mantovani & Forzza, 2015;Saraiva, Mantovani & Forzza, 2015) and some studies in recent years have identified morphological characters with good taxonomic value for phylogenetic inferences (e.g. Versieux et al, 2010;De Faria, Vieira & Wendt, 2012;Magalhães & Mariath, 2012;Santos-Silva et al, 2013;Nogueira et al, 2015). In this issue, Kuhn et al (2016) present a study on morphoanatomical features of species of Tillandsioideae, revealing good systematic value of ovule morphology in delimiting genera in Tillandsioideae; its use in phylogenetic studies in this group should be tested.…”

Section: Evolution and Phylogeneticsmentioning

confidence: 99%

Advances in and perspectives on evolution in Bromeliaceae

et al. 2016

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Seed morphoanatomy and its systematic relevance to Tillandsioideae (Bromeliaceae)

Cited by 21 publications

References 23 publications

Ecological niche modeling and a lack of phylogeographic structure in Vriesea incurvata suggest historically stable areas in the southern Atlantic Forest

Ecological niche modeling and a lack of phylogeographic structure in Vriesea incurvata suggest historically stable areas in the southern Atlantic Forest

Seed traits favouring dispersal and establishment of six epiphyticTillandsia(Bromeliaceae) species

Advances in and perspectives on evolution in Bromeliaceae

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