Publications des scientifiques de l'IRD

Nelson W. A., Payri Claude, Sutherland J. E., Dalen J. (2013). The genus Melanthalia (Gracilariales, Rhodophyta) : new insights from New Caledonia and New Zealand. Phycologia, 52 (5), p. 426-436. ISSN 0031-8884.

Titre du document
The genus Melanthalia (Gracilariales, Rhodophyta) : new insights from New Caledonia and New Zealand
Année de publication
2013
Type de document
Article référencé dans le Web of Science WOS:000325965100005
Auteurs
Nelson W. A., Payri Claude, Sutherland J. E., Dalen J.
Source
Phycologia, 2013, 52 (5), p. 426-436 ISSN 0031-8884
The Southern Hemisphere red algal genus Melanthalia (Gracilariales) was investigated as part of a study comparing shared elements in the floras of northern New Zealand and southern New Caledonia. Molecular sequence data were obtained from specimens that were collected from throughout New Caledonia and New Zealand and that encompassed the range of morphological variation. Before this study two species were recognised from New Caledonia and a single species from New Zealand. Our results supported the recognition of a single well-delimited monophyletic species that exhibited extreme phenotypic plasticity in New Caledonia, whereas in samples from New Zealand three lineages were identified, with two monophyletic and a third lineage, currently known from a single specimen. Between the New Zealand lineages there was only modest morphological variation but there was genetic differentiation between northern and southern populations. A single species, M. abscissa, was recognised in New Zealand pending further research to clarify species boundaries and enable description of new taxa. On the basis of sequence data, Melanthalia in New Zealand was distinct from Australian species, with a closer relationship shown between New Zealand and New Caledonia than between either of these and Australia. The two New Caledonian species were synonymised, with M. vieillardii having priority.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Limnologie biologique / Océanographie biologique [034] ; Etudes, transformation, conservation du milieu naturel [082]
Description Géographique
NOUVELLE CALEDONIE ; NOUVELLE ZELANDE
Localisation
Fonds IRD [F B010061265]
Identifiant IRD
fdi:010061265
Contact