Vriesea (Bromeliaceae, Tillandsioideae): a cladistic analysis of eastern Brazilian species based on morphological characters

Costa, Andrea; Gomes‐da‐Silva, Janaína

doi:10.1590/2175-7860201566211

Cited by 18 publications

(20 citation statements)

References 60 publications

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“…They can be found in sympatry and have morphologically well defined characteristics (Costa, Gomes-da-Silva & Wandeley, 2015), despite having similar floral morphology and sharing pollinators (Machado & Semir, 2006;Piacentini & Varassin, 2007). are epiphytic bromeliads endemic to the Brazilian Atlantic Forest.…”

Section: Introductionmentioning

confidence: 99%

Hybridization between two sister species of Bromeliaceae:Vriesea carinataandV. incurvata

et al. 2016

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Studies on interspecific gene flow and hybridization are important for understanding speciation processes and the movement of genes across species boundaries. In sympatric areas, hybridization between closely related species can be a common phenomenon and the degree of reproductive isolation (RI) among these species is closely related to the probability of hybrid formation. Here, using 14 nuclear microsatellites and two plastid DNA regions, we investigated the occurrence of natural hybridization in four sympatric populations of Vriesea carinata and V. incurvata. We also analysed four allopatric populations (two from each species), totalling 272 samples. These species share pollinators and have sequential flowering with a short period of overlap. Based on genetic assignment tests, 17 hybrids were detected in two of the four sympatric populations studied (8.29% of the individuals sampled). Our results showed low levels of nuclear (F ST = 0.098) and high plastid genetic differentiation (F ST = 0.601), with no haplotype sharing between parental species. The presence of plastid DNA haplotypes of both parental species in the hybrids indicated that hybridization probably occurred in both directions. We identified few hybrids, probably in consequence of some degree of RI between these species. Several RI barriers may be acting to maintain species integrity, temporal flowering differences being one important factor.

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Section: Introductionmentioning

confidence: 99%

Hybridization between two sister species of Bromeliaceae:Vriesea carinataandV. incurvata

et al. 2016

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“…On the other hand, this group was recovered as monophyletic in a morphological analysis of the genus by Costa et al. (). A more inclusive configuration including a larger number of Vriesea and Tillandsioideae, as well as the inclusion of molecular data in this study, clearly influenced the results, which supported the monophyly of this group of species that exhibit rare morphological features identified as synapomorphies but are not exclusive in the present analysis (i.e.…”

Section: Discussionmentioning

confidence: 96%

“…Phylogenetic analyses in Tillandsioideae have focused on overall relationships within the subfamily (Terry et al, 1997;Horres et al, 2000;Crayn et al, 2004;Barfuss et al, 2005Barfuss et al, , 2016 or within individual genera (Chew et al, 2010;Gomes-da-Silva et al, 2012;Versieux et al, 2012;Costa et al, 2015). Based on molecular data, the subfamily has been divided into four lineages, treated as tribes: Catopsideae, Glomeropitcairnieae, Vrieseeae and Tillandsieae (Barfuss et al, 2005(Barfuss et al, , 2016; two new subtribes, Cipuropsidinae and Vrieseinae, have been described within the tribe Vrieseea (Barfuss et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Although it is now well understood that Vriesea is polyphyletic, current studies have included too few species to adequately address the circumscription of the genus (e.g. Terry et al, 1997;Barfuss et al, 2005Barfuss et al, , 2016Gomes-da-Silva et al, 2012;Costa et al, 2015), and tests of congruence for morphological characters have not been yet performed. In the most recent taxonomic rearrangement for Tillandsioideae (Barfuss et al, 2016) Taxonomic problems in Vriesea are genuinely complex, highlighting the requirement of phylogenetic analyses.…”

Section: Introductionmentioning

confidence: 99%

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What actually is Vriesea? A total evidence approach in a polyphyletic genus of Tillandsioideae (Bromeliaceae, Poales)

Gomes‐da‐Silva

Souza-Chies

2017

Cladistics

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The taxonomic delimitation of Vriesea is challenging because several diagnostic traits of the genus are shared with other genera in Tillandsioideae. The genus has no unique morphological features that distinguish it from other taxa. Earlier phylogenetic studies suggested a polyphyletic status of this genus, but taxon sampling was limited, and tests of congruence for morphological characters have not yet been performed. Here we used a total evidence approach and a more comprehensive Brazilian taxon sampling to help circumscribe Vriesea s.s. (the lineage that contains the type species). We concatenated morphological and molecular datasets for the first time to reconstruct phylogenetic hypotheses. We used 99 morphological characters and ~4 kb of plastid data (psbA‐trnH, trnK5′‐rps16, matK, trnL‐trnF) for 172 terminals, including nine genera of Tillandsioideae. We analysed datasets by parsimony analyses, with several weighting schemes considered for character‐state changes (equal weights and an implied weighting scheme that we used as a sensitivity analysis). The concatenated data resulted in a well‐resolved phylogenetic inference that provided strong evidence that the genus is not monophyletic as traditionally circumscribed. Given the congruence between morphological, molecular and geographical sources of data, we separated Vriesea into distinct lineages, and proposed a new circumscription that includes only species of Vriesea s.s. found in the Chacoan and Parana subregions.

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“…These traits are associated with an epiphytic habitat and include: 1) sexual reproduction coupled with bird-pollination (mostly hummingbirds) and 2) presence of "entangling seeds" (i.e., those able to attach to a host), such as wind-dispersed comose seeds or animaldispersed seeds from fleshy fruits. Vriesea is the third largest bromeliad genus with approximately 280 species (Costa et al 2015), which have monocarpic and clonal reproduction via axillary buds in the basal leaf sheaths (Costa et al 2014), and are mostly pollinated by hummingbirds (Araújo et al 1994;Sazima et al 1995a;1996;Martinelli 1997;Machado & Semir 2006;Varassin & Sazima 2012), but also by bats (Sazima et al 1995b;1999;Martinelli 1997;Kaehler et al 2005), bees (Kaehler et al 2005) and butterflies (Scrok & Varassin 2011;Varassin & Sazima 2012). The comose seeds are dispersed by wind (Costa et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of rosette size, clonality and spatial distribution on the reproduction of Vriesea carinata (Bromeliaceae) in the Atlantic Forest of Paraná, southern Brazil

Silva

Varassin

2016

Acta Bot. Bras.

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Plant size and clonality are important traits for explaining the reproductive eff ort of clonal plants. Larger plants can invest more resources into reproduction, and clonality is known to increase reproductive eff ort. Moreover, reproductive eff ort is infl uenced by environmental variation, and so the spatial distribution of plants may aff ect plant reproductive eff ort. We investigated the eff ect of plant size, clonality and spatial distribution on the reproductive eff ort of Vriesea carinata in the Atlantic Forest in the state of Paraná, Brazil. We marked twenty individual plants and measured their rosette size, biomass and number, as well as rosette reproductive eff ort (number of fl owers, fruits and seeds). We also evaluated the relationship between reproductive eff ort and spatial distribution of plants. Reproductive eff ort did not correlate with size, whereas greater clonal growth contributed to a lower reproductive eff ort because rosettes within clones that had more rosettes set fewer fl owers. We found that plants growing closer to each other exhibited similar reproductive eff orts independently of vegetative traits, because reproductive traits were spatially autocorrelated. In Vriesea carinata, the main drivers of reproductive eff ort are clonality, which decreases fl ower production, and spatial factors, which result in greater similarity in reproductive eff orts among more proximate plants.

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Vriesea (Bromeliaceae, Tillandsioideae): a cladistic analysis of eastern Brazilian species based on morphological characters

Cited by 18 publications

References 60 publications

Hybridization between two sister species of Bromeliaceae:Vriesea carinataandV. incurvata

Hybridization between two sister species of Bromeliaceae:Vriesea carinataandV. incurvata

What actually is Vriesea? A total evidence approach in a polyphyletic genus of Tillandsioideae (Bromeliaceae, Poales)

Effect of rosette size, clonality and spatial distribution on the reproduction of Vriesea carinata (Bromeliaceae) in the Atlantic Forest of Paraná, southern Brazil

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