Floral biology, phytogeography and systematics of <i>Eriosyce</i> subgenus <i>Neoporteria</i> (Cactaceae)

Walter, Helmut E.

doi:10.25223/brad.n26.2008.a6

Cited by 15 publications

(25 citation statements)

References 2 publications

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“…3H). The Copiapó Valley also marks the northernmost distribution of Eriosyce subgenus Neoporteria (Walter, 2008), and in Nolana (Solanaceae) a genus occurring in a similar habitat, the Copiapó Valley, also marks one of the strongest barriers to gene flux (Ossa et al, 2013). These results suggest that the Copiapó Valley acts as a barrier in distinct Cactaceae and other plant lineages.…”

Section: Discussionmentioning

confidence: 99%

An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert

Larridon

Walter²,

Guerrero

et al. 2015

American J of Botany

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Section: Discussionmentioning

confidence: 99%

An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert

Larridon

Walter²,

Guerrero

et al. 2015

American J of Botany

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“…form a well‐supported clade in our analyses, a finding that confirms the results of Guerrero & al. () and Walter's assumption () and refutes Kattermann's () broad concept of E. subgibbosa . Only recently, however, he accepted E. subgibbosa subsp.…”

Section: Discussionmentioning

confidence: 80%

“…vallenarensis and E. subgibbosa subsp. wagenknechtii were placed as sister to the other taxa of clade VI and not with E. subgibbosa (Walter, ; Guerrero & al., ). Finally, E. subgibbosa subsp.…”

Section: Discussionmentioning

confidence: 99%

Molecular phylogeny of the large South American genus Eriosyce (Notocacteae, Cactaceae): Generic delimitation and proposed changes in infrageneric and species ranks

Guerrero

Walter²,

Arroyo

et al. 2019

TAXON

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Eriosyce is one of most species‐rich genera within Notocacteae (Cactaceae) harboring a variety of stem and flower morphologies, and fruits with basal abscission. The lack of a well‐sampled molecular phylogeny contributes to the current taxonomic instability of the genus, where its circumscription and infrageneric classification has been questioned. Specimens of Eriosyce (63 taxa) plus 19 outgroups were analyzed through sequencing three plastid noncoding introns (rpl32‐trnL, trnL‐trnF, trnH‐psbA), one plastid gene (ycf1), and one nuclear gene (PHYC). Individual markers and concatenated matrices were analyzed using maximum likelihood and Bayesian approaches. Phylogenetic analyses strongly support the monophyly of Eriosyce s.l. Furthermore, seven clades within Eriosyce s.l. were defined based on supported branches, although one of them was weakly supported. Our results suggest that some past taxonomic proposals have low phylogenetic support and should no longer be used, e.g., based on their scattered positions in the phylogenetic reconstruction, several infraspecific taxa appear unrelated to the typical form of the species in which they had been placed. We present a phylogeny‐informed infrageneric classification of the genus Eriosyce, and new combinations are proposed to update the nomenclature of species and sections.

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“…Con excepción de Donald & Rowley (1966), Neoporteria ha sido considerado como grupo natural por distintos autores, independiente de su rango taxonómico (Walter 2008, Guerrero et al 2011, sin embargo, la propuesta de Kattermann (1994) que incluye a Neoporteria en Eriosyce s.l. como taxón infragenérico no ha sido objetada salvo por Kiesling et al (2008) en donde se mantiene al nivel de género.…”

Section: Neoporteria Britton and Roseunclassified

“…Estudios de diversa índole sugieren la monofilia de Neoporteria s.s. independiente de su rango taxonómico, ya sea sobre la base de caracteres anatómicos del tallo (Nyffeler & Eggli 1997), patrones de floración y morfología floral (Walter 2008) o morfología y análisis filogenéticos moleculares (Guerrero et al 2011). Sin embargo, en todos estos trabajos se discute la inclusión o exclusión de especies intermedias con Pyrrhocactus s.l.…”

Section: Neoporteria Britton and Roseunclassified

Consideraciones sobre la sistemática de las familias y los géneros de plantas vasculares endémicos de Chile

Urbina-Casanova

Saldivia²,

Scherson

2015

Gayana Bot.

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RESUMENEl endemismo es uno de los principales aspectos que trata la biogeografía histórica y es uno de los criterios más importantes para establecer las prioridades de conservación de las especies. En el mundo, más del 90% de las plantas que se encuentra en alguna categoría de amenaza son endémicas de un sólo país. En Chile, un 45% de las especies de plantas vasculares son endémicas. Actualmente este número incluye 83 géneros y 4 familias endémicas del país; éstos son valores elevados en comparación con el resto de Latinoamérica. Sin embargo, la alta tasa de cambios producidos por los estudios de sistemática molecular en la taxonomía ha generado modificaciones en estos números. Este trabajo pretende discutir dichas modificaciones y así contribuir a la correcta delimitación de estos géneros endémicos. Utilizando bases de datos y bibliografía actualizadas, se llevó a cabo una revisión exhaustiva sobre estos géneros. Se sustrajeron de la lista aquellos géneros con registros fuera del país y aquellos que cuentan con evidencia suficiente para cambiar su estatus taxonómico. Se entrega una revisión crítica de la bibliografía sistemática respecto de los géneros en cuestión, discutiendo principalmente aquellos que a la luz de la literatura presentaron ambigüedades en su clasificación. PALABRAS CLAVE:Endemismo, Sistemática molecular, Filogenia molecular, Conservación biológica. ABSTRACTEndemism is one of the main considerations in historical biogeography and one of the most important criteria when establishing conservation priorities. Worldwide, more than 90% of the plants listed in conservation categories are endemic to one country. In Chile, 45% of the flora is endemic, currently considering 83 endemic genera and 4 endemic families, elevated numbers compared to the rest of Latinamerica. However, the high rate of changes in taxonomy, based on studies of molecular systematics has produced modifications in this list. This study aims at discussing such modifications and in this way, contribute to the correct delimitation of our endemic genera. Using updated databases and bibliographic sources, an exhaustive revision of these genera was carried out. Genera with registries outside of the country, as well as those that had enough evidence to change their taxonomic status were subtracted from the list. A critical revision of the systematic bibliography available is provided, emphasizing the discussion on those genera with ambiguous classification status.

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Floral biology, phytogeography and systematics of Eriosyce subgenus Neoporteria (Cactaceae)

Cited by 15 publications

References 2 publications

An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert

An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert

Molecular phylogeny of the large South American genus Eriosyce (Notocacteae, Cactaceae): Generic delimitation and proposed changes in infrageneric and species ranks

Consideraciones sobre la sistemática de las familias y los géneros de plantas vasculares endémicos de Chile

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