Reestablishment of Mansoa ventricosa (Bignonieae, Bignoniaceae) based on molecular and morphological data

Francisco, Jéssica Nayara Carvalho; Lohmann, Lúcia G.

doi:10.11646/phytotaxa.327.2.3

Cited by 3 publications

(5 citation statements)

References 21 publications

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“…Sequences of these markers were extracted from complete or nearly complete plastome sequences using HTS (see below) and included within the Sanger dataset. Nuclear marker amplification followed Francisco & Lohmann (2017). PCR purification and sequencing were performed by Macrogen (Seoul, Korea).…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Phylogeny and morphological evolution of the Neotropical genus Cuspidaria (Bignonieae, Bignoniaceae): Combining high‐throughput sequencing and targeted loci data

Francisco,

Fonseca,

Lohmann

2023

TAXON

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The combined use of high‐throughput sequencing (HTS) with targeted loci data offers an excellent opportunity to reconstruct robust and comprehensive phylogenies at fine taxonomic scales using a hybrid approach. In this study, we infer the phylogeny of Cuspidaria (Bignonieae, Bignoniaceae), a diverse clade of lianas and shrubs centered in South America's wet and dry forests. We used HTS to obtain complete or nearly complete plastome sequences of seven individuals of Cuspidaria selected to represent the main clades in the genus. This sampling strategy aimed to reconstruct relationships at deeper nodes (i.e., backbone). We also used targeted loci data obtained through Sanger sequencing to obtain sequences of two chloroplast markers (ndhF, rpl32‐trnL) and one nuclear marker (PepC) for multiple individuals of 18 out of the 21 species of Cuspidaria recognized in the most recent treatment of the genus; only C. emmonsii, C. lachnaea, and C. simplicifolia were not sampled. This broad sampling strategy aimed to test the monophyly of individual species and reconstruct fine‐scale interspecific relationships within the genus. Both datasets were analyzed separately and combined using Bayesian inference and maximum likelihood approaches. The combined dataset includes 65 individuals representing 18 previously recognized species of Cuspidaria plus outgroup taxa. The analysis of the combined dataset recovered a monophyletic Cuspidaria, excluding C. bracteata, which was nested within the outgroup and is best treated elsewhere. Ancestral character state reconstructions provided novel insights into the evolution of morphology and identified multiple putative morphological synapomorphies for key lineages of Cuspidaria. Namely, anthers curved forward was reconstructed as a potential synapomorphy for the Cuspidaria clade, whereas interpetiolar gland fields in stems and inflorescence, subulate or inconspicuous prophylls of the axillary buds, biternate leaves, actinodromous venation, calyx cupulate or spathaceous, calyx apices dentate or irregularly lobed, fruits with winged valves, and fruit midrib limited by two longitudinal ridges were reconstructed as potential synapomorphies of different clades within the genus. Other traits such as habit, tertiary venation, inflorescence type, corolla color, number of ovule series, and pollen unit were highly labile. As circumscribed here, Cuspidaria is composed of eight main clades supported by molecular data and morphological synapomorphies: Sideropogon, Tetrastichella, Cinerea, Paracarpaea, Cremastus, Blepharitheca, Saldanhaea, and Cuspidaria s.str. clades. All species are monophyletic, except for C. pulchra and C. sceptrum, which form a species complex and are best treated as a single taxon. The necessary taxonomic changes are proposed, leading to the recognition of 19 species in Cuspidaria.

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Section: ■ Materials and Methodsmentioning

confidence: 99%

Phylogeny and morphological evolution of the Neotropical genus Cuspidaria (Bignonieae, Bignoniaceae): Combining high‐throughput sequencing and targeted loci data

Francisco,

Fonseca,

Lohmann

2023

TAXON

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“… Pachyptera aromatica is sister to the remaining species of the genus (Fig. 1 ; Francisco and Lohmann 2017 , Francisco and Lohmann submitted). The phylogenetic placement of P. aromatica corroborates its placement within Pachyptera and helps to explain the unusal morphology of this taxon.…”

Section: Taxonomic Treatmentmentioning

confidence: 99%

“…A recent phylogenetic and morphological study of Pachyptera ( Francisco and Lohmann 2017 ) sampled all species recognised by Lohmann and Taylor (2014) . In this phylogeny, Pachyptera ventricosa was more closely related to Mansoa than to other species of Pachyptera , which led to the reestablishment of Mansoa ventricosa ( Francisco and Lohmann 2017 ). In addition, this study also provided further support for the inclusion of P. aromatica and P. erythraea into Pachyptera .…”

Section: Taxonomic Historymentioning

confidence: 99%

“…A more comprehensive phylogenetic study of the genus (Francisco and Lohmann submitted) sampled multiple individuals of all three species of Pachyptera recognised by Francisco and Lohmann (2017) and used coalescent approaches to verify species limits. This study identified five evolutionary units that are characterised by distinct morphological features and ecological traits (Fig.…”

Section: Taxonomic Historymentioning

confidence: 99%

“…The genus has a complicated taxonomic history, including a difficult generic circumscription and several poorly defined taxa. Here, a new systematic treatment of Pachyptera is proposed and five species are recognised using an integrative approach that includes data derived from a recent molecular phylogeny ( Francisco and Lohmann 2017 , Francisco and Lohmann submitted), coalescent approaches (Francisco and Lohmann submitted) and new morphological studies.…”

Section: Introductionmentioning

confidence: 99%

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Taxonomic revision of Pachyptera (Bignonieae, Bignoniaceae)

Francisco¹,

Lohmann²

2018

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Pachyptera DC. is a small genus of neotropical lianas included in tribe Bignonieae (Bignoniaceae). The genus has a complicated taxonomic history but currently includes species distributed from Belize to Southern Amazon. Pachyptera is characterised by four main synapomorphies, namely, a papery peeling bark, prophylls of the axillary buds organised in a series of three, patelliform glands arranged in lines in the upper portions of the calyx and corolla tube. Furthermore, members of the genus also have stems with four phloem wedges in cross-section and conspicuous extrafloral nectaries between the interpetiolar region and at the petiole apex, although these characters are also shared with other genera of tribe Bignonieae. Here, we present a taxonomic revision of Pachyptera, which includes a complete list of synonyms, detailed morphological descriptions of species and an identification key, as well as information on the habitat, distribution and phenology, nomenclatural notes, taxonomic comments and illustrations of all the species. In addition, we designate three lectotypes, propose one new combination, raise one variety to species status and describe a new species. After these adjustments, a Pachyptera with five well-defined species is recognised.

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Phylogeny and Biogeography of the Amazonian Pachyptera (Bignonieae, Bignoniaceae)

Francisco

Lohmann

2020

Systematic Botany

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Abstract—The Amazon houses a large proportion of the overall biodiversity currently found on Earth. Despite that, our knowledge of Amazonian biodiversity is still limited. In this study, we reconstruct the phylogeny of Pachyptera (Bignoniaceae), a genus of neotropical lianas that is centered in the Amazon. We then use this phylogenetic framework to re-evaluate species limits and study the biogeographic history of the genus. We sampled three molecular markers (i.e. ndhF, rpl32-trnL, and PepC) and 51 individuals representing the breadth of morphological variation and geographic distribution of all species recognized in the genus. We used this information to reconstruct phylogenetic relationships among individuals of Pachyptera using Bayesian and maximum likelihood approaches. The resulting molecular phylogeny was used as a basis to test species limits within the P. kerere species complex using a cpDNA coalescent approach (GMYC). GMYC identified five potential species within the P. kerere species complex that were subsequently evaluated in the light of morphology. Morphological data supported the recognition of four of the five potential species suggested by GMYC, all of which were also supported by a multispecies coalescent model in a Bayesian framework. The phylogeny of Pachyptera was time-calibrated and used to reconstruct the biogeographical history of the genus. We identified historically important migration pathways using our comprehensive cpDNA dataset and a Bayesian stochastic search variable selection (BSSVS) framework. Our results indicate that the genus originated in lowland Amazonia during the Middle Eocene, and subsequently occupied Central America and the Andes. Most of the diversification of Pachyptera occurred in the Miocene, a period of intense perturbations in South America.

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Reestablishment of Mansoa ventricosa (Bignonieae, Bignoniaceae) based on molecular and morphological data

Cited by 3 publications

References 21 publications

Phylogeny and morphological evolution of the Neotropical genus Cuspidaria (Bignonieae, Bignoniaceae): Combining high‐throughput sequencing and targeted loci data

Phylogeny and morphological evolution of the Neotropical genus Cuspidaria (Bignonieae, Bignoniaceae): Combining high‐throughput sequencing and targeted loci data

Taxonomic revision of Pachyptera (Bignonieae, Bignoniaceae)

Phylogeny and Biogeography of the Amazonian Pachyptera (Bignonieae, Bignoniaceae)

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