Accessible Requires Authentication Published by De Gruyter August 15, 2014

Morphological and molecular studies on topotype material of Neoralfsia expansa (Phaeophyceae) reveal that Asian specimens assigned to this taxon are genetically distinct

Daniel León-Álvarez, Maria L. Núñez-Resendiz and Michael J. Wynne
From the journal Botanica Marina

Abstract

The genus Neoralfsia was newly described by P.-E. Lim and Kawai on the basis of rbcL sequence data from specimens from Japan and Malaysia identified as Neoralfsia expansa, and N. expansa [Myrionema (?) expansum] from Mexico was designated as the type species. Our maximum likelihood and Bayesian analyses show that specimens of N. expansa from the type locality are grouped into a new, not previously described, clade in Neoralfsiaceae, distant from that of the putative specimens attributed to N. expansa from Japan and Malaysia. We show that genuine “expansa” does not include Asian material. The distribution of the species is not as wide as has been previously recorded.


Corresponding author: Daniel León-Álvarez, Laboratorio de Ficología and Sección de Algas del Herbario de la Facultad de Ciencias, Universidad Nacional Autónoma de México, UNAM, Mexico 04510 D.F., e-mail:

Acknowledgments

The authors are indebted to Drs. Michele Gold and Dení Rodríguez for their valuable comments along this project. Thanks also to Dr. Edith Ponce who advised us on DNA extraction and amplification. Financial support was partially provided by DGAPA, UNAM, PAPIIT IN215108 and IN229711 projects.

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Received: 2014-5-15
Accepted: 2014-7-24
Published Online: 2014-8-15
Published in Print: 2014-10-1

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