Cactaceae of South America: The Ritter Collections

Eggli, U.; Schick, Melica Munoz; Leuenberger, Beat Ernst

doi:10.2307/3776764

Cited by 21 publications

(11 citation statements)

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“…Climatic variables determine species distribution at broad evolutionary and biogeographic scales (Soberón, 2007; Colwell and Rangel, 2009); therefore, methods that use these variables to produce occurrence probability maps are appropriate to estimate the distribution of species. Information on locality data was obtained from different sources: field excursions, literature (e.g., Eggli et al, 1995; Schulz and Kapitany, 1996; Schulz, 2006; Guerrero et al, 2011b), and the Chilean herbaria CONC and SGO. These locality data are not included here, as it concerns CITES listed species under significant threat due to illegal collecting.…”

Section: Methodsmentioning

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: Methodsmentioning

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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“…Revisions of specimens were here used to discuss the morphological trends in the obtained phylogenetic hypothesis. Distribution data was obtained from different sources: field excursions, literature (e.g., Eggli & al., 1995;Guerrero & al., 2011b;Duarte & al., 2014), and the Chilean herbaria CONC and SGO. These locality data are not included here, following CITES norms for species listed under significant threat due to illegal collecting (Goettsch & al., 2015).…”

Section: Figmentioning

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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“…krainziana, and 127 of C. gigantea were used to model the distribution of the taxa. Information on locality data was obtained from different sources: field excursions, literature (Eggli et al 1995;Schulz & Kapitany 1996;Schulz 2006;Guerrero et al 2011a), and Chilean herbaria (CONC, SGO; Thiers continously updated3). All the compiled occurrences were filtered following two criteria for inclusion: (1) occurrence data based on geographic coordinates or accurate locality information; and (2) occurrences registered after 1950 (revealing present day distribution).…”

Section: Species Distribution Modelling and Assessment Of Conservatiomentioning

confidence: 99%

Investigating taxon boundaries and extinction risk in endemic Chilean cacti (Copiapoa subsection Cinerei, Cactaceae) using chloroplast DNA sequences, microsatellite data and 3D mapping

et al. 2018

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Copiapoa (Cactaceae) is a genus endemic to the Chilean Atacama Desert. The taxa of Copiapoa subsection Cinerei occur in an area of high species richness and high levels of species endemism of the Central Chilean biodiversity hotspot. Four taxa are usually recognised in this group: Copiapoa gigantea (sometimes placed in C. cinerea as C. cinerea subsp. haseltoniana) and C. cinerea including three subspecies (subsp. cinerea, subsp. krainziana and subsp. columna-alba), one of which is often recognised at species level, i.e. the narrow endemic C. krainziana.Here, we evaluate the taxon boundaries of Copiapoa subsection Cinerei using chloroplast sequences and microsatellite data. We generated sequences of three cpDNA markers (rpl32-trnL, trnH-psbA, ycf1) and as indicated in a previous study, found variation between C. gigantea and C. cinerea on a subsample of 34 individuals. Five microsatellite loci were genotyped for 68 individuals from the known range of Copiapoa subsection Cinerei. In contrast with expectations, we found relatively high levels of genetic diversity (e.g., He = 0.775 -0.827; Ho = 0.580 -0.750) and no population structure, even between the two species. Additionally, species distribution models were conducted based on abiotic suitability and transformed to 3D maps to account for topographical complexity. The species distribution models and their 3D projections support an allopatric distribution of the four taxa of Copiapoa subsection Cinerei, with each taxon related to a different range with complex topographical features. The obtained molecular results, combined with the presented species distribution modelling, and calculations of extent of occurrence and area of occupancy for the four taxa of Copiapoa subsection Cinerei, suggest a high extinction risk for most of the taxa. A taxonomic treatment is provided.

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Cactaceae of South America: The Ritter Collections

Cited by 21 publications

References 0 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

Investigating taxon boundaries and extinction risk in endemic Chilean cacti (Copiapoa subsection Cinerei, Cactaceae) using chloroplast DNA sequences, microsatellite data and 3D mapping

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