Artículo de revista
Identification of cryptic species in the lessonia nigrescens complex (phaeophyceae, laminariales)
Fecha
2012Registro en:
Journal of Phycology, Volumen 48, Issue 5, 2018, Pages 1153-1165
00223646
15298817
10.1111/j.1529-8817.2012.01200.x
Autor
González, Alejandra
Beltrán, Jessica
Hiriart-Bertrand, Luciano
Flores, Verónica
de Reviers, Bruno
Correa, Juan A.
Santelices, Bernabé
Institución
Resumen
The kelp Lessonia nigrescens Bory is the most ecologically and economically important seaweed in rocky intertidal and shallow subtidal habitats along the temperate Pacific South American coasts. Recent molecular studies suggest the existence of two lineages, one (northern lineage) from 17°S to 30°S and a second (central lineage) from 29°S to 41°S. To identify and name these lineages we performed morphological, nomenclatural and field studies. Four external and three internal anatomical traits permitted a morphological separation of the two lineages. The internal structure of both lineages was different from the isolectotype of Lessonia nigrescens. It is therefore concluded that the name Lessonia nigrescens should not be used for the Chilean material. Chordaria spicata Suhr appears as the oldest available name for the central lineage, while Lessonia berteroana Montagne is the oldest name for the northern lineage. In both cases, the type material consisted of small-sized, apical branches