A New Endemic Smilax (Smilacaceae) from Tafelberg, Suriname, Supported by Morphometric and Phylogenetic Evidence DOI

Thomas H. Murphy,

Natalie M. Heaton,

Iwan E. Molgo

et al.

Systematic Botany, Journal Year: 2023, Volume and Issue: 48(4), P. 482 - 493

Published: Dec. 22, 2023

Abstract— Taxonomy of Smilax in the Neotropics is poorly known with many undescribed species, unresolved synonymy, and regional treatments conflicting taxon concepts. This issue amplified Guiana Shield, which has arguably received least amount taxonomic research . Here, we investigate multiple specimens from Tafelberg, Suriname that hypothesized to represent an species. We used univariate multivariate morphometrics analyze linear measurements leaf outlines test if how Tafelberg differ those morphologically similar species lasseriana S. maypurensis a genome skimming approach sequence assemble plastomes, also allowed us extract plastid loci previously employed Sanger-based studies place putative new phylogeny expanded sampling. recovered as more closely related ranges centered eastern Brazil than its congeners, describe this tafelbergensis detailed morphological comparisons taxa, distribution map, illustration.

Language: Английский

An updated account of Simaroubaceae with emphasis on American taxa DOI
José Rubens Pirani, Lucas C. Majure, Marcelo Fernando Devecchi

et al.

Revista Brasileira de Botânica, Journal Year: 2021, Volume and Issue: 45(1), P. 201 - 221

Published: Aug. 19, 2021

Language: Английский

Citations

18
Phylogenomics of the Caribbean melocacti: Cryptic species and multiple invasions DOI
Lucas C. Majure,

Duniel Barrios,

Edgardo Díaz

et al.

Taxon, Journal Year: 2022, Volume and Issue: 71(5), P. 993 - 1012

Published: July 27, 2022

Abstract The widespread Neotropical genus Melocactus of approximately 42 currently recognized species, is most diverse in eastern Brazil and the Greater Antilles, especially Cuba. Species delimitation notoriously problematic group, although this due part to a lack detailed systematic studies, as well severely cluttered nomenclatural history. To date, no comprehensive phylogenetic hypotheses have been generated for clade, some population genetic morphological studies exist. We largest dataset date based on plastome data derived from genome‐skimming approach 26 taxa, which provided framework understanding species limits relationships among Caribbean species. Our time‐calibrated phylogeny revealed mid‐Pleistocene origin , we resolved three major clades, Cuban mostly South American also included taxa. topology recovered clade sister rest placement was poorly supported, several other are scattered throughout tree. Biogeographic analyses suggested multiple dispersal events America leading current diversity Cuba, parts Antilles. Based our results, previous numbers solely morphology have, cases, greatly underestimated. study shows that effective resolving clades future work will need include broader sampling larger datasets fully resolve complicated group cacti. describe one new cryptic santiagoensis sp. nov., provide combination ( lagunaensis comb. & stat. nov.), results typify numerous names genus. another striking example exceptional has studied, seasonally dry tropical forest

Language: Английский

Citations

9
Castela (Simaroubaceae), an impressive New World radiation of thorny shrubs destined for edaphically dry habitats DOI
Lucas C. Majure,

Allison Blankenship,

Ayress D. Grinage

et al.

Revista Brasileira de Botânica, Journal Year: 2021, Volume and Issue: 45(1), P. 237 - 249

Published: Aug. 14, 2021

Language: Английский

Citations

9
Evolution of the Xerocarpa clade (Opuntia; Opuntieae): Evidence for the Role of the Grand Canyon in the Biogeographic History of the Iconic Beavertail Cactus and Relatives DOI Creative Commons
Lucas C. Majure,

Thomas H. Murphy,

Matias Köhler

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(14), P. 2677 - 2677

Published: July 18, 2023

The formation of the western North American drylands has led to evolution an astounding diversity species well adapted for such communities. Complex historical patterns often underlie modern distribution flora and fauna these areas. We investigated biogeography a group desert-adapted prickly pears, known as Xerocarpa clade, from America. clade originated in mid-late Pliocene, likely on Colorado Plateau, then moved south into Mojave, Sonoran, Chihuahuan deserts, California montane regions, further diversifying, mostly Quaternary. southward trajectory was greatly influenced by Grand Canyon. synapomorphy dry fruit presumably impeded long-distance dispersibility beavertail cactus, Opuntia basilaris, while dry, spiny may have enabled O. polyacantha substantially increase its distribution. basilaris evolved pubescent epidermis, allowing it invade hotter, drier conditions, spine-clothed stems given advantage increasing northern range colder environments. shows cold desert origin, changes morphological characters made sister taxa invading broadscale, but oftentimes contrasting habitats.

Language: Английский

Citations

3
Biogeography and diversification of the Caribbean clade of Miconia (Melastomataceae): a Cuban origin underlies one of the largest Antillean radiations DOI Open Access
Lucas C. Majure,

Lucas F. Bacci,

Eldis R. Bécquer

et al.

Biological Journal of the Linnean Society, Journal Year: 2023, Volume and Issue: 140(3), P. 376 - 396

Published: Oct. 21, 2023

Abstract The Greater Antilles are renowned as a biodiversity hotspot and known to be geologically complex, which has led, in part, the generation of organismal diversity this area. One most species-rich montane groups within is tribe Miconieae (Miconia s.l.) Melastomataceae, with ca. 325 species found there. diverse clade Miconia Caribbean, Caribbean clade, composes roughly half that diversity, an estimated 160 species, nearly all endemic Antilles. It unclear how been generated through time or where it originated, but we now have sufficiently well-sampled robust datasets test these patterns. Using custom-built plastome dataset, phylogenetic hypothesis for 106 members tested biogeographical patterns among islands. Our results suggest originated mid-Miocene, probably from South American ancestor, diversified substantially on island Cuba before repeatedly dispersing across other parts Antilles, especially into nearby Hispaniola then, lesser extent, Jamaica, Puerto Rico and, finally, Lesser

Language: Английский

Citations

2
Seasonally dry tropical forests of the Greater Antilles yield a new species of the Caribbean clade of Castela, Castela plenaensis (Simaroubaceae), an endemic to the southern slopes of the Sierra de Bahoruco, Dominican Republic DOI
Lucas C. Majure, Teodoro Clase

Brittonia, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 25, 2024

Language: Английский

Citations

0
Una especie nueva, Castela juyyaania (Simaroubaceae), y tres registros nuevos para la flora semiárida de Sinaloa, México DOI Creative Commons
Juan Fernando Pío-León,

Jesús A. Carrillo-García,

Bladimir Salomón-Montijo

et al.

Acta Botanica Mexicana, Journal Year: 2023, Volume and Issue: 130

Published: Nov. 28, 2023

Resumen Antecedentes y Objetivos: Durante exploraciones biológicas en el bosque espinoso cercano a las costas de Sinaloa, se colectaron especímenes cuatro taxones no reportadas previamente para este estado, incluyendo primer registro del género Castela, cual trató una especie nueva la ciencia. El objetivo trabajo fue describir e ilustrar Castela juyyaania, así como reportar los tres nuevos registros adicionales flora Sinaloa que comparten hábitat con nueva. Métodos: Se realizaron colectas botánicas norte durante 2022 2023. Para descripción consultó literatura disponible género, ejemplares herbarios bases datos electrónicas. elaboró clave identificación sección México, mapa distribución, lámina comparativa especies más relacionadas evaluación vulnerabilidad acuerdo Unión Internacional Conservación Naturaleza (UICN). presentan fotos mapas distribución actualizada. Resultados clave: juyyaania es microendémica Península Guachapori, Sinaloa. Crece costa, un área aproximadamente 25 km2, altamente amenazada por expansión agropecuaria. De criterios UICN, propone categoría Peligro Crítico. relaciona morfológicamente complejo C. erecta, diferencia presentar hojas pecioladas, margen conspicuamente revoluto, estilos presentes semillas reticuladas. presenta algunos elementos desierto sonorense, Ebenopsis confinis, Gossypium davidsonii Malpighia diversifolia. Conclusiones: Con adición, llega siete México endémicas, consolidándolo su principal centro diversidad. Los aportan valiosos conservación bosques secos amenazados

Citations

1
Editorial: Diversity and evolution of Neotropical Sapindales DOI Open Access
Diego Demarco, André Olmos Simões, José Rubens Pirani

et al.

Revista Brasileira de Botânica, Journal Year: 2022, Volume and Issue: 45(1), P. 1 - 4

Published: March 1, 2022

Language: Английский

Citations

2
A New Endemic Smilax (Smilacaceae) from Tafelberg, Suriname, Supported by Morphometric and Phylogenetic Evidence DOI

Thomas H. Murphy,

Natalie M. Heaton,

Iwan E. Molgo

et al.

Systematic Botany, Journal Year: 2023, Volume and Issue: 48(4), P. 482 - 493

Published: Dec. 22, 2023

Abstract— Taxonomy of Smilax in the Neotropics is poorly known with many undescribed species, unresolved synonymy, and regional treatments conflicting taxon concepts. This issue amplified Guiana Shield, which has arguably received least amount taxonomic research . Here, we investigate multiple specimens from Tafelberg, Suriname that hypothesized to represent an species. We used univariate multivariate morphometrics analyze linear measurements leaf outlines test if how Tafelberg differ those morphologically similar species lasseriana S. maypurensis a genome skimming approach sequence assemble plastomes, also allowed us extract plastid loci previously employed Sanger-based studies place putative new phylogeny expanded sampling. recovered as more closely related ranges centered eastern Brazil than its congeners, describe this tafelbergensis detailed morphological comparisons taxa, distribution map, illustration.

Language: Английский

Citations

0