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Molecular systematic reassessment of Sargassum (Fucales, Phaeophyceae) in Korea using four gene regions

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Published/Copyright: August 10, 2012
Botanica Marina
From the journal Botanica Marina Volume 55 Issue 5

Abstract

Sargassum is an ecologically and economically important brown alga in East Asia. A total of 28 species are listed in the available literature for South Korea. To identify the species and evaluate the phylogenetic relationships of Korean Sargassum, we analyzed ITS2, rbcL, psaA, and cox3 sequences from a subset of 50 specimens assigned to 22 Sargassum species; sequences of Korean-collected Myagropsis myagroides and Coccophora langsdorfii were also included. We reconstructed the phylogeny of Sargassum using the concatenated dataset. The Korean Sargassum species fell into two subgenera: 19 species were assigned to S. subgen. Bactrophycus and three species to S. subgen. Sargassum. The species in the S. subgen. Bactrophycus represented the sections Halochloa, Hizikia, Spongocarpus, and Teretia, whereas those of S. subgen. Sargassum represented the sections Binderiana and Sargassum. All Korean Sargassum species identified in the present study are part of the East Asiatic complex of species co-occurring in Japan and surrounding areas. Our four-gene dataset was highly resolved at the sectional level and confirmed recently proposed revisions within the genus. The present study is the first comprehensive phylogenetic analysis of Sargassum using four molecular markers.

Keywords: brown algae; Fucales; molecular markers; phylogeny; Sargassum
Corresponding author: Sung Min Boo, Department of Biology, Chungnam National University, Daejeon 305-764, South Korea
Received: 2012-1-31
Accepted: 2012-7-10
Published Online: 2012-08-10
Published in Print: 2012-10-01

©2012 by Walter de Gruyter Berlin Boston

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  7. Molecular systematic reassessment of Sargassum (Fucales, Phaeophyceae) in Korea using four gene regions
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https://doi.org/10.1515/bot-2012-0109
Keywords for this article
brown algae; Fucales; molecular markers; phylogeny; Sargassum

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Research Articles
  4. Phytoplankton assemblage patterns in the southern Mid-Atlantic Bight
  5. A checklist of marine fungi of Taiwan with a description of Kitesporella keelungensis gen. et sp. nov
  6. First report of the alien brown alga Botrytella parva (Takamatsu) H.-S. Kim (Chordariaceae, Phaeophyceae) from the eastern Mediterranean Sea
  7. Molecular systematic reassessment of Sargassum (Fucales, Phaeophyceae) in Korea using four gene regions
  8. Deep-water macroalgal-dominated coastal detritic assemblages on the continental shelf off Mallorca and Menorca (Balearic Islands, Western Mediterranean)
  9. The photosynthetic characteristics of red coralline algae, determined using pulse amplitude modulation (PAM) fluorometry
  10. Effects of ocean acidification on different life-cycle stages of the kelp Laminaria hyperborea (Phaeophyceae)
  11. Effect of heating and probiotic fermentation on the phytochemical content and antioxidant potential of edible Irish brown seaweeds
  12. Seasonal variation in the polyamines of Ecklonia maxima
  13. Short communication
  14. The invasive seaweed Sargassum filicinum (Fucales, Phaeophyceae) is on the move along the Mexican Pacific coastline
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