Advanced search
1 file | 2.81 MB Add to list

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

(2015) AMERICAN JOURNAL OF BOTANY. 102(9). p.1506-1520
Author
Organization
Abstract
PREMISE OF THE STUDY: Species of the endemic Chilean cactus genus Copiapoa have cylindrical or (sub)globose stems that are solitary or form (large) clusters and typically yellow fl owers. Many species are threatened with extinction. Despite being icons of the Atacama Desert and well loved by cactus enthusiasts, the evolution and diversity of Copiapoa has not yet been studied using a molecular approach. METHODS: Sequence data of three plastid DNA markers ( rpl32-trnL , trnH-psbA , ycf1 ) of 39 Copiapoa taxa were analyzed using maximum likelihood and Bayesian inference approaches. Species distributions were modeled based on geo-referenced localities and climatic data. Evolution of character states of four characters (root morphology, stem branching, stem shape, and stem diameter) as well as ancestral areas were reconstructed using a Bayesian and maximum likelihood framework, respectively. KEY RESULTS: Clades of species are revealed. Though 32 morphologically defi ned species can be recognized, genetic diversity between some species and infraspecifi c taxa is too low to delimit their boundaries using plastid DNA markers. Recovered relationships are often supported by morphological and biogeographical patterns. The origin of Copiapoa likely lies between southern Peru and the extreme north of Chile. The Copiapó Valley limited colonization between two biogeographical areas. CONCLUSIONS: Copiapoa is here defi ned to include 32 species and fi ve heterotypic subspecies. Thirty species are classifi ed into four sections and two subsections, while two species remain unplaced. A better understanding of evolution and diversity of Copiapoa will allow allocating conservation resources to the most threatened lineages and focusing conservation action on real biodiversity.
Keywords
phylogeny, systematics, morphology, infrageneric classifi cation, evolutionary biogeography, cpDNA, Copiapoa, Cactoideae, ancestral state reconstruction, Cactaceae, PHYLOGENETIC-RELATIONSHIPS, GEOGRAPHIC DISTRIBUTIONS, CONSERVATION PRIORITIES, NEOPORTERIA CACTACEAE, RETICULATE EVOLUTION, CHIHUAHUAN DESERT, ENDANGERED CACTI, BIOGEOGRAPHY, INSIGHTS, ERIOSYCE

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 2.81 MB

Citation

Please use this url to cite or link to this publication:

MLA
Larridon, Isabel et al. “An Integrative Approach to Understanding the Evolution and Diversity of Copiapoa (Cactaceae), a Threatened Endemic Chilean Genus from the Atacama Desert.” AMERICAN JOURNAL OF BOTANY 102.9 (2015): 1506–1520. Print.
APA
Larridon, I., Walter, H. E., Guerrero, P. C., Duarte, M., Cisternas, M. A., Peña Hernández, C., Bauters, K., et al. (2015). An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert. AMERICAN JOURNAL OF BOTANY, 102(9), 1506–1520.
Chicago author-date
Larridon, Isabel, Helmut E Walter, Pablo C Guerrero, Milén Duarte, Mauricio A Cisternas, Carol Peña Hernández, Kenneth Bauters, Pieter Asselman, Paul Goetghebeur, and Marie-Stéphanie Samain. 2015. “An Integrative Approach to Understanding the Evolution and Diversity of Copiapoa (Cactaceae), a Threatened Endemic Chilean Genus from the Atacama Desert.” American Journal of Botany 102 (9): 1506–1520.
Chicago author-date (all authors)
Larridon, Isabel, Helmut E Walter, Pablo C Guerrero, Milén Duarte, Mauricio A Cisternas, Carol Peña Hernández, Kenneth Bauters, Pieter Asselman, Paul Goetghebeur, and Marie-Stéphanie Samain. 2015. “An Integrative Approach to Understanding the Evolution and Diversity of Copiapoa (Cactaceae), a Threatened Endemic Chilean Genus from the Atacama Desert.” American Journal of Botany 102 (9): 1506–1520.
Vancouver
1.
Larridon I, Walter HE, Guerrero PC, Duarte M, Cisternas MA, Peña Hernández C, et al. An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert. AMERICAN JOURNAL OF BOTANY. 2015;102(9):1506–20.
IEEE
[1]
I. Larridon et al., “An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert,” AMERICAN JOURNAL OF BOTANY, vol. 102, no. 9, pp. 1506–1520, 2015.
@article{6940742,
  abstract     = {PREMISE OF THE STUDY: Species of the endemic Chilean cactus genus Copiapoa have cylindrical or (sub)globose stems that are solitary or form (large) clusters and typically yellow fl owers. Many species are threatened with extinction. Despite being icons of the Atacama Desert and well loved by cactus enthusiasts, the evolution and diversity of Copiapoa has not yet been studied using a molecular approach.
METHODS: Sequence data of three plastid DNA markers ( rpl32-trnL , trnH-psbA , ycf1 ) of 39 Copiapoa taxa were analyzed using maximum likelihood and Bayesian inference approaches. Species distributions were modeled based on geo-referenced localities and climatic data. Evolution of character states of four characters (root morphology, stem branching, stem shape, and stem diameter) as well as ancestral areas were reconstructed using a Bayesian and maximum likelihood framework, respectively.
KEY RESULTS: Clades of species are revealed. Though 32 morphologically defi ned species can be recognized, genetic diversity between some species and infraspecifi c taxa is too low to delimit their boundaries using plastid DNA markers. Recovered relationships are often supported by morphological and biogeographical patterns. The origin of Copiapoa likely lies between southern Peru and the extreme north of Chile. The Copiapó Valley limited colonization between two biogeographical areas.
CONCLUSIONS: Copiapoa is here defi ned to include 32 species and fi ve heterotypic subspecies. Thirty species are classifi ed into four sections and two subsections, while two species remain unplaced. A better understanding of evolution and diversity of Copiapoa will allow allocating conservation resources to the most threatened lineages and focusing conservation action on real biodiversity.},
  author       = {Larridon, Isabel and Walter, Helmut E and Guerrero, Pablo C and Duarte, Milén and Cisternas, Mauricio A and Peña Hernández, Carol and Bauters, Kenneth and Asselman, Pieter and Goetghebeur, Paul and Samain, Marie-Stéphanie},
  issn         = {0002-9122},
  journal      = {AMERICAN JOURNAL OF BOTANY},
  keywords     = {phylogeny,systematics,morphology,infrageneric classifi cation,evolutionary biogeography,cpDNA,Copiapoa,Cactoideae,ancestral state reconstruction,Cactaceae,PHYLOGENETIC-RELATIONSHIPS,GEOGRAPHIC DISTRIBUTIONS,CONSERVATION PRIORITIES,NEOPORTERIA CACTACEAE,RETICULATE EVOLUTION,CHIHUAHUAN DESERT,ENDANGERED CACTI,BIOGEOGRAPHY,INSIGHTS,ERIOSYCE},
  language     = {eng},
  number       = {9},
  pages        = {1506--1520},
  title        = {An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert},
  url          = {http://dx.doi.org/10.3732/ajb.1500168},
  volume       = {102},
  year         = {2015},
}

Altmetric
View in Altmetric
Web of Science
Times cited: