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Issue: Vol. 365 No. 1: 16 August 2018
Type: Article
Published: 2018-08-16
DOI: 10.11646/phytotaxa.365.1.4
Page range: 89–95
Abstract views: 20
PDF downloaded: 12

Desmarestia japonica subsp. angustifolia (Desmarestiales, Phaeophyceae), a new subspecies from Korea

Marine Research Institute, Pusan National University, Busan 46241, South Korea
Microorganism Resources Division, National Institute of Biological Resources, Incheon 22689, South Korea
Algae cox1 Desmarestia japonica intraspecific variation Korea new subspecies

Abstract

Desmarestia japonica H. Kawai, T. Hanyuda, D. G. Müller, E. C. Yang, A. F. Peters, & F.C. Küpper (2014: 161) was recently reported in Japan, Korea, and China. In this study, we found intraspecific morphogenetic variation in D. japonica. Morphologically, the new taxonomic entity was characterized by narrow filamentous primary and secondary branches (morphotype 2), which was distinct from the broad (ligulate) branches in the original description of D. japonica (morphotype 1). Korean individuals with morphotype 2 were clearly separated from D. japonica with morphotype 1 in the molecular phylogenetic tree using the mitochondrial cytochrome c oxidase 1 (cox1) gene. Therefore, we propose that this new taxonomic entity be established as Desmarestia japonica subsp. angustifolia subsp. nov. (Phaeophyceae, Desmarestiales) based on its morphological and molecular characteristics.

References

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