The long journey of Orthotrichum shevockii (Orthotrichaceae, Bryopsida): From California to Macaronesia.

Autor: Vigalondo B; Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain., Patiño J; Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna, La Laguna, Santa Cruz de Tenerife, Spain.; Island Ecology and Evolution Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), La Laguna, Tenerife, Spain.; Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America., Draper I; Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain., Mazimpaka V; Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain., Shevock JR; Department of Botany, California Academy of Sciences, San Francisco, CA, United States of America., Losada-Lima A; Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna, La Laguna, Santa Cruz de Tenerife, Spain., González-Mancebo JM; Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna, La Laguna, Santa Cruz de Tenerife, Spain., Garilleti R; Departamento de Botánica y Geología, Facultad de Farmacia, Universidad de Valencia, Valencia, Spain., Lara F; Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2019 Feb 13; Vol. 14 (2), pp. e0211017. Date of Electronic Publication: 2019 Feb 13 (Print Publication: 2019).
DOI: 10.1371/journal.pone.0211017
Abstrakt: Biogeography, systematics and taxonomy are complementary scientific disciplines. To understand a species' origin, migration routes, distribution and evolutionary history, it is first necessary to establish its taxonomic boundaries. Here, we use an integrative approach that takes advantage of complementary disciplines to resolve an intriguing scientific question. Populations of an unknown moss found in the Canary Islands (Tenerife Island) resembled two different Californian endemic species: Orthotrichum shevockii and O. kellmanii. To determine whether this moss belongs to either of these species and, if so, to explain its presence on this distant oceanic island, we combined the evaluation of morphological qualitative characters, statistical morphometric analyses of quantitative traits, and molecular phylogenetic inferences. Our results suggest that the two Californian mosses are conspecific, and that the Canarian populations belong to this putative species, with only one taxon thus involved. Orthotrichum shevockii (the priority name) is therefore recognized as a morphologically variable species that exhibits a transcontinental disjunction between western North America and the Canary Islands. Within its distribution range, the area of occupancy is limited, a notable feature among bryophytes at the intraspecific level. To explain this disjunction, divergence time and ancestral area estimation analyses are carried out and further support the hypothesis of a long-distance dispersal event from California to Tenerife Island.
Competing Interests: The authors have declared that no competing interests exist.
Databáze: MEDLINE
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