Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta) SCIE SCOPUS

Cited 25 time in WEB OF SCIENCE Cited 28 time in Scopus
Title
Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta)
Author(s)
Ciniglia, Claudia; Yang, Eun Chan; Pollio, Antonino; Pinto, Gabriele; Iovinella, Manuela; Vitale, Laura; Yoon, Hwan Su
KIOST Author(s)
Yang, Eun Chan(양은찬)
Alternative Author(s)
양은찬
Publication Year
2014
Abstract
The Cyanidiophyceae are a group of unicellular organisms that diverged from ancestral red algae around 1.3 billion years ago. Present-day species are restricted to hot springs and geothermal habitats from around the world. Because of discontinuous geothermal environments, the distribution patterns and dispersal modes of the cyanidiophycean species are poorly understood. Iceland is the third largest island in the Atlantic Ocean and has intense underground volcanic activity that generates broad hydrothermal areas with different ecological conditions that are excellent for thermoacidophilic microfloral development. We analyzed populations to address the Icelandic cyanidiophycean biodiversity and dispersal. A global rbcL phylogeny showed two main populations inhabiting Iceland, Galdieria sulphuraria and G. maxima. Their areas of distribution are not completely superimposed because they coexisted only in New Zealand, Kamchatka (Russia), Japan, and Iceland. Because of the strong monophyly of Icelandic species with Japanese and Russian species, we hypothesized an origin and dispersion of Icelandic G. suphuraria and G. maxima from northeastern Asia. On the basis of network analysis of rbcL haplotypes, it is likely that the southwestern region of Iceland is the diversity center of both G. sulphuraria and G. maxima.
ISSN
0031-8884
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/40420
DOI
10.2216/14-032.1
Bibliographic Citation
PHYCOLOGIA, v.53, no.6, pp.542 - 551, 2014
Publisher
INT PHYCOLOGICAL SOC
Subject
PHYLOGENETIC TREE SELECTION; MICROBIAL EUKARYOTES; DNA POLYMORPHISM; CYANIDIALES; DIVERSITY; PATTERNS; ALGAE; DEGLACIATION; PLEISTOCENE; ENDEMISM
Keywords
Cyanidiophyceae; Dispersal; Galdieria; Population structure
Type
Article
Language
English
Document Type
Article
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