Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter July 5, 2010

Additional records of Gelidiella fanii (Gelidiales, Rhodophyta) from the western Pacific based on morphology, rbcL and cox1 analyses

  • Jutarat Wiriyadamrikul , Jeong Kwang Park , Khanjanapaj Lewmanomont and Sung Min Boo
From the journal Botanica Marina

Abstract

This is a first report on the occurrence of Gelidiella fanii outside of Taiwan, where it was recently described as a new species. New specimens have been collected from Thailand, Indonesia, Japan, and the Philippines. The species commonly occurred on rocks and crustose algae in the intertidal zone at locations visited. Thalli had downward curving unilateral branchlets, numerous hairs around branch tips, iridescent color under water, and clublike tetrasporangial stichidia with blunt tips. Two genes were analyzed from different organelle genomes: plastid rbcL from 13 specimens and mitochondrial cox1 from 24 specimens including putative relatives. Analyses of both rbcL and cox1 sequences revealed that G. fanii was strictly separated from other species in the genus. This is the first report on cox1 gene sequences in the order Gelidiales. Nine cox1 haplotypes were found in G. fanii; there was a biogeographic structure, except for the Japanese haplotype, which grouped with those from Thailand. The present study indicates that G. fanii is common in Thailand and probably in the southeastern Asia region. G. fanii was more closely related to an identified Gelidiella sequence from South Africa, which is morphologically similar to G. acerosa. Detailed observations of field-collected material will enable a more realistic evaluation of the distribution of G. fanii in tropical and subtropical waters of the world.


Corresponding author

Received: 2010-1-26
Accepted: 2010-4-27
Published Online: 2010-07-05
Published in Print: 2010-08-01

©2010 by Walter de Gruyter Berlin New York

Downloaded on 19.3.2024 from https://www.degruyter.com/document/doi/10.1515/BOT.2010.037/pdf
Scroll to top button