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Type: Article
Published: 2014-02-03
Page range: 133–153
Abstract views: 14
PDF downloaded: 1

Pyropia orbicularis sp. nov. (Rhodophyta, Bangiaceae) based on a population previously known as Porphyra columbina from the central coast of Chile

Museo Nacional de Historia Natural, Área Botánica, Casilla 787, Santiago, Chile
Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 470, Santiago, Chile
Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Casilla 567 Valdivia, Chile
Natural History Museum, Department of Life Sciences, Cromwell Road, London SW7 5BD, UK
Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 470, Santiago, Chile
Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 470, Santiago, Chile
Ingeniería en Acuicultura, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 470, 8370251 Santiago, Chile
Ingeniería en Acuicultura, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 470, 8370251 Santiago, Chile
Bangiales COI Morphology Porphyra Pyropia rbcL South Pacific

Abstract

A new species of bladed Bangiales, Pyropia orbicularis sp. nov., has been described for the first time from the central coast of Chile based on morphology and molecular analyses. The new species was incorrectly known previously as Porphyra columbina (now Pyropia columbina), and it can be distinguished from other species of Pyropia through a range of morphological characteristics, including the shape, texture and colour of the thallus, and the arrangement of the reproductive structures on the foliose thalli. Molecular phylogenies based on both the mitochondrial COI and plastid rbcL gene regions enable this species to be distinguished from other species within Pyropia. P. orbicularis sp. nov. belongs to a well-supported clade of Pyropia from the southern oceans that include specimens from the South Pacific (North, South, Chatham, Stewart, Auckland, and Campbell Island, New Zealand, New South Wales, and Macquarie Island, Australia) including P. columbina and P. plicata. Within this clade, the highest sequence identity was observed between Pyropia orbicularis sp. nov. and Pyropia sp. FIC from the Falkland Islands.