<i>Pradosia restingae</i> sp. nov. from the Atlantic forest, Brazil

Terra-Araújo, Mário Henrique; Faria, Aparecida Donisete De; Alves-Araújo, Anderson; Alves, Marccus

doi:10.1111/j.1756-1051.2012.01724.x

Cited by 12 publications

(8 citation statements)

References 7 publications

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“…1L-M), which is absent in the rest of the subfamily (Terra-Araujo et al, 2013). The genus varies in habit from geoxylic shrubs (one species) to medium-sized and large trees.…”

Section: Introductionmentioning

confidence: 98%

“…Species are distributed across a wide variety of habitats, including savannahs and evergreen to deciduous forests in the Amazon region, the Brazilian Atlantic coast, and the Andes. The Amazon and Atlantic coast are the two major centres of diversity for Sapotaceae (Pennington, 1990;Alves-Araújo and Alves, 2011;Terra-Araujo et al, 2013), where 80% of the species occur. The biogeographical connections between these regions are still poorly understood and, to date, only a handful of studies have estimated divergence times between taxa from these regions, finding that organisms in the two areas have been isolated from each other for several million years (Vicentini, 2007;Fiaschi and Pirani, 2009;Pellegrino et al, 2011;Fouquet et al, 2012a,b).…”

Section: Introductionmentioning

confidence: 99%

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Species tree phylogeny and biogeography of the Neotropical genus Pradosia (Sapotaceae, Chrysophylloideae)

Terra-Araújo

Faria

Vicentini

et al. 2015

Molecular Phylogenetics and Evolution

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Recent phylogenetic studies in Sapotaceae have demonstrated that many genera need to be redefined to better correspond to natural groups. The Neotropical genus Pradosia is believed to be monophyletic and includes 26 recognized species. Here we reconstruct the generic phylogeny by a species-tree approach using (∗)BEAST, 21 recognized species (36 accessions), sequence data from three nuclear markers (ITS, ETS, and RPB2), a relaxed lognormal clock model, and a fossil calibration. We explore the evolution of five selected morphological characters, reconstruct the evolution of habitat (white-sand vs. clayish soils) preference, as well as space and time by using a recently developed continuous diffusion model in biogeography. We find Pradosia to be monophyletic in its current circumscription and to have originated in the Amazon basin at ∼47.5Ma. Selected morphological characters are useful to readily distinguish three clades. Preferences to white-sand and/or clay are somewhat important for the majority of species, but speciation has not been powered by habitat shifts. Pradosia brevipes is a relative young species (∼1.3Ma) that has evolved a unique geoxylic life strategy within Pradosia and is restricted to savannahs. Molecular dating and phylogenetic pattern indicate that Pradosia reached the Brazilian Atlantic coast at least three times: at 34.4Ma (P. longipedicellata), at 11.7Ma (P. kuhlmannii), and at 3.9Ma (weakly supported node within the red-flowered clade).

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“…1L-M), which is absent in the rest of the subfamily (Terra-Araujo et al, 2013). The genus varies in habit from geoxylic shrubs (one species) to medium-sized and large trees.…”

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Species tree phylogeny and biogeography of the Neotropical genus Pradosia (Sapotaceae, Chrysophylloideae)

Terra-Araújo

Faria

Vicentini

et al. 2015

Molecular Phylogenetics and Evolution

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“…However, the knowledge of RN’s flora is growing rapidly. New species have recently been discovered (Sobral 2010, Araújo and Alves 2013, Lourenço et al 2013, Terra-Araújo et al 2013, Ribeiro et al 2015b, Souza et al 2016) and new occurrences for genera or species have been reported for RN (Versieux et al 2013a, 2013b, São-Matheus et al 2013, Magalhães et al 2014, Amorim et al 2016, Colombo et al 2016, Gomes-Costa and Alves 2016). In five years, the number of species records for RN increased by 78% (BFG 2015).…”

Section: Discussionmentioning

confidence: 99%

Integrative research identifies 71 new plant species records in the state of Rio Grande do Norte (Brazil) and enhances a small herbarium collection during a funding shortage

Versieux¹,

Dávila²,

Delgado³

et al. 2017

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A National Forest Inventory (NFI) encompassing the entire territory of Brazil is in progress. It is coordinated and promoted by the Brazilian Forest Service of the Ministry of Environment. In each state, the NFI collaborates with local herbaria by receiving collected plant material and performing species identification. Consultants are hired by the NFI and work at the local herbaria under the supervision of a curator. In exchange for curatorial assistance, the NFI provides equipment and consumables for the herbarium. Other public projects collaborating with NFI are Reflora and the Brazilian Biodiversity Information System (SiBBr). Both projects have online platforms that seek to connect herbaria and make all their data freely available, including high quality digital images of specimens. Through inter-institutional collaboration, the joint interests of NFI, Reflora, SiBBr and local herbaria have improved collections, expanded the online Reflora database, and provided the NFI with verified species lists. These strategic uses of public funding are positively affecting Botany, particularly during a period of economic crisis and cuts in research. Here, we illustrate the increase in floristic knowledge through the improvement of a herbarium collection in Rio Grande do Norte (RN) – the Brazilian state with the lowest levels of plant richness. We report 71 new occurrences of vascular plants for RN, belonging mainly to the Poaceae, Fabaceae and Malvaceae. Most of the species with new occurrences have a Neotropical distribution (21 spp.) and only seven are restricted to the Brazilian Northeast. Our findings highlight previous gaps in RN’s floristic knowledge. The partnership NFI, Reflora, SiBBr and the UFRN herbarium improved herbarium curation, digital collection, and quality of data. Finally, a fellowship provided by Reflora and SiBBr allowed improving curation by distributing duplicates and incorporating the Herbarium of Câmara Cascudo Museum.

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“…Molecular data. -Sequence data from the nuclear ribosomal DNA (ETS, ITS) and the nuclear gene RPB2 were used since they have proven to provide ample information for phylogenetic inference in Sapotaceae at all taxonomic levels (Swenson & al., , 2019Terra-Araujo & al., 2015;Faria & al., 2017). Also, since Gayella is a member of the well-known Australasian clade (Bartish & al., 2005;Swenson & al., 2008bSwenson & al., , 2014Swenson & al., , 2019, existing sequence data was used and assembled into matrices using AliView v.1.26 (Larsson, 2014), manually checked, adjusted and subsequently prepared in BEAUti v.1.10.4 (part of the BEAST package) to an input xml-file for Bayesian inference.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Phylogenetic position and reinstatement of Gayella (Sapotaceae), a monotypic genus endemic to Chile with an Eocene origin in continental Australia

Swenson

Nylinder

Marticorena

et al. 2022

TAXON

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Pouteria splendens is the only native species of Sapotaceae in Chile, a species once placed in the monotypic genus Gayella and known as G. valparadisaea, but for a long time treated as a Pouteria. In a phylogenetic analysis, this species was placed in an Australasian clade, not with its presumed relatives in South America. We used Bayesian inference under a relaxed molecular clock in BEAST, nuclear ribosomal DNA (ETS, ITS), the nuclear gene RPB2, indel information, and 201 terminals to find the closest relative of P. splendens and to estimate the age of the disjunction between Australasia and South America. The taxon has an isolated phylogenetic position, being part of the cladeʼs backbone, and is placed with weak support as sister to Van‐royena, another monotypic genus, but endemic to Australia. Our results justify reinstatement of Gayella with its single species G. valparadisaea. Gayella has a unique combination of morphological features including alternate, opposite or 3‐whorled leaves, often on the same plant, a usually 6‐lobed, rotate corolla with revolute corolla lobes giving the flower a star‐like appearance, lacerate to dentate staminodes, and yellow‐orange‐red fruit with plano‐convex cotyledons and an exserted radicle below the cotyledon commissure. The split between Gayella and Van‐royena is estimated to the late Eocene at about 40.0 Ma (50.5–25.3 Ma). The hypothesis that the presence of Gayella in South America is a result of vicariance is consistent with the timing of the geological splits of southern Gondwana, as well as with evidence from fossil pollen, but long‐distance dispersal is an alternative explanation that cannot be excluded. Gayella is restricted to an area with a Mediterranean‐type climate in coastal central Chile, where it occurs in rocky places, ravines, and gullies, usually below 100 m altitude within reach of sea mist. Gayella valparadisaea is a rare plant, listed as Endangered (EN) in Chile, but it does not occur in any protected area. Considering the isolated phylogenetic position of this old lineage, we urge the Chilean authorities to increase the efforts towards protection of this species.

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Pradosia restingae sp. nov. from the Atlantic forest, Brazil

Cited by 12 publications

References 7 publications

Species tree phylogeny and biogeography of the Neotropical genus Pradosia (Sapotaceae, Chrysophylloideae)

Species tree phylogeny and biogeography of the Neotropical genus Pradosia (Sapotaceae, Chrysophylloideae)

Integrative research identifies 71 new plant species records in the state of Rio Grande do Norte (Brazil) and enhances a small herbarium collection during a funding shortage

Phylogenetic position and reinstatement of Gayella (Sapotaceae), a monotypic genus endemic to Chile with an Eocene origin in continental Australia

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