&lt;I&gt;Quipuanthus&lt;/I&gt;, a New Genus of Melastomataceae from the Foothills of the Andes in Ecuador and Peru

Michelangeli, Fabián A.; Ulloa, Carmen Ulloa; Sosa, Karla

doi:10.1600/036364414x680924

Cited by 24 publications

(13 citation statements)

References 26 publications

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“…Sampling was based on previous family wide phylogenetic studies (Michelangeli, Ulloa & Sosa, 2014; Goldenberg et al, 2015), where each sample belongs to a different major lineage of the family, either with a formal tribe status or not. Voucher information along with GenBank accession codes are presented in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…The first Melastomataceae-wide phylogeny used a plastid data set including the rbcL and ndhF genes plus the rpl16 intron (Clausing & Renner, 2001). This plastid data set is still the most employed source of information in studies focusing on generic relationships across the family (Fritsch et al, 2004; Renner, 2004; Amorim, Goldenberg & Michelangeli, 2009; Michelangeli et al, 2011; Goldenberg et al, 2012; Michelangeli, Ulloa & Sosa, 2014; Goldenberg et al, 2015; Zeng et al, 2016). Phylogenetic studies within lower lineages of Melastomataceae have predominantly used the plastid spacers accD-psaI , atpF-atpH , psbK-psbI , and trnS-trnG , along with the ribosomal spacers nrETS and nrITS (Bécquer-Granados et al, 2008; Reginato, Michelangeli & Goldenberg, 2010; Kriebel, Michelangeli & Kelly, 2015; Reginato & Michelangeli, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Early studies have consolidated the sister relationship of Olisbeoideae and the remaining Melastomataceae, settling on the currently accepted family circumscription (Conti, Litt & Sytsma, 1996; Angiosperm Phylogeny Group, 1998; but see Clausing & Renner, 2001 for a different perspective). Latter studies focused in some tribal re-arrangements (Fritsch et al, 2004; Penneys et al, 2010; Michelangeli et al, 2011), generic placement (Amorim, Goldenberg & Michelangeli, 2009; Goldenberg et al, 2012; Michelangeli, Ulloa & Sosa, 2014; Goldenberg et al, 2015; Kriebel, 2016; Rocha et al, 2016; Zeng et al, 2016), phylogenetic evaluation of higher species-rich lineages (Michelangeli et al, 2004; Stone, 2006; Goldenberg et al, 2008; Martin et al, 2008; Michelangeli et al, 2008; Michelangeli et al, 2013), and lower taxon phylogenies (Bécquer-Granados et al, 2008; Reginato, Michelangeli & Goldenberg, 2010; Penneys, 2013; Kriebel, Michelangeli & Kelly, 2015; Gamba-Moreno & Almeda, 2014; Majure et al, 2015; Reginato & Michelangeli, 2016). Even in family-wide phylogenies, the level of variation across these few sampled plastid markers is unsatisfactory, as evidenced by low statistical support among many relationships in different published analyses.…”

Section: Introductionmentioning

confidence: 99%

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The first complete plastid genomes of Melastomataceae are highly structurally conserved

Reginato

Neubig

Majure

et al. 2016

PeerJ

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BackgroundIn the past three decades, several studies have predominantly relied on a small sample of the plastome to infer deep phylogenetic relationships in the species-rich Melastomataceae. Here, we report the first full plastid sequences of this family, compare general features of the sampled plastomes to other sequenced Myrtales, and survey the plastomes for highly informative regions for phylogenetics.MethodsGenome skimming was performed for 16 species spread across the Melastomataceae. Plastomes were assembled, annotated and compared to eight sequenced plastids in the Myrtales. Phylogenetic inference was performed using Maximum Likelihood on six different data sets, where putative biases were taken into account. Summary statistics were generated for all introns and intergenic spacers with suitable size for polymerase chain reaction (PCR) amplification and used to rank the markers by phylogenetic information.ResultsThe majority of the plastomes sampled are conserved in gene content and order, as well as in sequence length and GC content within plastid regions and sequence classes. Departures include the putative presence of rps16 and rpl2 pseudogenes in some plastomes. Phylogenetic analyses of the majority of the schemes analyzed resulted in the same topology with high values of bootstrap support. Although there is still uncertainty in some relationships, in the highest supported topologies only two nodes received bootstrap values lower than 95%.DiscussionMelastomataceae plastomes are no exception for the general patterns observed in the genomic structure of land plant chloroplasts, being highly conserved and structurally similar to most other Myrtales. Despite the fact that the full plastome phylogeny shares most of the clades with the previously widely used and reduced data set, some changes are still observed and bootstrap support is higher. The plastome data set presented here is a step towards phylogenomic analyses in the Melastomataceae and will be a useful resource for future studies.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The first complete plastid genomes of Melastomataceae are highly structurally conserved

Reginato

Neubig

Majure

et al. 2016

PeerJ

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“…Triana's classification was adopted by many later authors (Cogniaux, ; Krasser, ; Diels, ; Li, ; Chen, ), but Van Vliet et al () proposed a broader Sonerileae mainly based on wood anatomy to include also the paleotropical tribe Oxysporeae and the neotropical tribe Bertolonieae. Later molecular phylogenetic studies showed that Sonerileae and Oxysporeae formed a close alliance nested within tribe Dissochaeteae (Clausing, ; Clausing et al, ; Clausing & Renner, , ; Renner et al, ; Fritsch et al, ; Goldenberg et al, ; Michelangeli et al, ). In this paper, we followed a circumscription of Sonerileae s.l.…”

Section: Introductionmentioning

confidence: 99%

Exploring the generic delimitation of Phyllagathis and Bredia (Melastomataceae): A combined nuclear and chloroplast DNA analysis

Zhou

Lin

Dai

et al. 2018

J of Sytematics Evolution

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Phyllagathis Blume and Bredia Blume (Sonerileae s.l., Melastomataceae) are two closely related Asian genera with similar morphology and overlapping geographical range. Their generic circumscription and phylogenetic relationships are far from fully understood. We present here a molecular phylogenetic investigation for the two genera using nuclear ribosomal internal transcribed spacer and chloroplast (trnV‐trnM) sequence data. Seventeen genera of Sonerileae s.l. were included in the analyses, with Phyllagathis and Bredia densely sampled to cover their geographical range and morphological diversity. We identified 14 well supported species clusters within Sonerileae s.l.–Medinilla. Phylogenetic analyses together with reconstruction of morphological characters clearly indicated the taxonomic mess in generic delimitation of Sonerileae s.l. Many of the characters traditionally used in generic delimitation were highly homoplasious. Bredia and Phyllagathis, as well as Allomorphia, Anerincleistus, Fordiophyton, and Oxyspora, were revealed to be non‐monophyletic. Bredia, as currently defined, contains two groups of species with different phylogenetic affiliations. Bredia should be recircumscribed to exclude the Bredia–Phyllagathis clade I and accommodate the Bredia–Phyllagathis clade II as the type of the genus is included in the latter clade. Most species sampled in Phyllagathis spread across eight well supported clades throughout the phylogenetic tree. The type of Phyllagathis showed no close affiliation with other members of Phyllagathis nor its putative relatives. Phyllagathis, as presently circumscribed, is heterogeneous, encompassing multiple evolutionary lineages. As sequence data of nuclear ribosomal internal transcribed spacer and chloroplast trnV‐trnM failed to resolve the phylogenetic relationships among these lineages, the formal taxonomic adjustment of Phyllagathis is postponed until further evidence can be gathered.

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“…For genera of the Marcetia alliance it is a consistent character state for only five of the 15 species of Siphanthera (Almeda & Robinson 2011). Among other capsularfruited neotropical Melastomataceae it is a characteristic feature of the Cyphostyleae (Michelangeli et al 2011(Michelangeli et al , 2014, one species of Cambessedesia (Candolle 1828: 110), one species of Monochaetum (Candolle 1828: 138) Naudin (1845, one species of Poteranthera (Bongard 1838: 137), and one species of Pterolepis (Candolle 1828: 140) (Martins 1984;Alvear 2010;Kriebel 2012;Almeda & Martins 2015). In the Cyphostyleae, the capsular fruits are derived from inferior ovaries.…”

Section: Taxonomic Treatmentmentioning

confidence: 99%

Brasilianthus (Melastomataceae), a new monotypic genus endemic to ironstone outcrops in the Brazilian Amazon

2016

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A new monotypic genus, Brasilianthus carajensis, is described from Carajás Mineral Province where it is restricted to campo rupestre vegetation on ironstone outcrops (canga) that form island-like lenses nestled in the Amazon rainforest of southeastern Pará, Brazil. Among neotropical capsular-fruited Melastomataceae, Brasilianthus is distinguished by a unique combination of characters: annual habit; haplostemonous, 4-merous flowers; tubulose-subcylindric hypanthia with erect, narrowly obovate deciduous calyx lobes that are widest distally and well-spaced basally; short cupulate-campanulate anthers with a wide truncate apical pore; biaristate ventral staminal appendages; 4-locular ovary with an apex crowned by four persistent ± deltoid appendages; absence of placental intrusions in mature capsules; and subcochleate seeds with a costate testa. These morphological characters are congruent with DNA sequence data that show Brasilianthus nested within the Marcetia alliance of the tribe Melastomeae where it is sister to Nepsera aquatica. These two genera are in turn sister to Ernestia pullei and Appendicularia thymifolia. A comprehensive description of Brasilianthus is presented together with diagnostic illustrations, images of plants in the wild, a distribution map, SEM images of seeds, a geospatial conservation assessment based on IUCN criteria, and comparisons with generic relatives in the Marcetia alliance.Key words: haplostemony, Marcetia alliance, phylogeny, Serra dos Carajás, canga ResumoUm novo gênero monotípico, Brasilianthus carajensis, é descrito da Província Mineral de Carajás, onde é restrito à vegetação de campo rupestre sobre afloramentos ferruginosos (canga), que formam ilhas rupestres na floresta amazônica no sudeste do estado do Pará, Brasil. Entre as espécies de Melastomataceae neotropicais com frutos capsulares, Brasilianthus distinguese por uma combinação única de caracteres: hábito anual; flores tetrâmeras haplostêmones; hipanto tubuloso e subcilíndrico com lobos do cálice eretos, decíduos, estreitamente obovais, com a parte distal mais larga e base claramente espassada; anteras curtas, cupulado-campanuladas com um amplo poro apical truncado; apêndices ventrais estaminais biaristados; ovário tetralocular, com um ápice coroado por quatro apêndices ± deltóides persistentes; ausência de intrusões da placenta em cápsulas maduras; e sementes subcocleadas com testa costada. Estas características morfológicas são congruentes com os dados de sequência de DNA que mostram Brasilianthus inseridos na aliança Marcetia da tribo Melastomeae, onde é grupo irmão de Nepsera aquatica. Estes dois gêneros são, por sua vez, grupo irmão de Ernestia pullei e Appendicularia thymifolia. Uma descrição completa de Brasilianthus é apresentada, assim como ilustrações diagnósticas, imagens das plantas no habitat, micrografia eletrônica de varredura de sementes, uma avaliação do estado de conservação com base em critérios da IUCN, e comparações com gêneros relacionados na aliança Marcetia.

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<I>Quipuanthus</I>, a New Genus of Melastomataceae from the Foothills of the Andes in Ecuador and Peru

Cited by 24 publications

References 26 publications

The first complete plastid genomes of Melastomataceae are highly structurally conserved

The first complete plastid genomes of Melastomataceae are highly structurally conserved

Exploring the generic delimitation of Phyllagathis and Bredia (Melastomataceae): A combined nuclear and chloroplast DNA analysis

Brasilianthus (Melastomataceae), a new monotypic genus endemic to ironstone outcrops in the Brazilian Amazon

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