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Overview of the systematics of the brown algal family Scytosiphonaceae (Ectocarpales, Phaeophyceae)
Wilfred John E. Santiañez1*
,
Michael J. Wynne2
1Gregorio T. Velasquez Phycological Herbarium and The Marine Science Institute, Velasquez St., College of Science, University of the Philippines, Diliman, Quezon City 1101, Philippines
2University of Michigan Herbarium, University of Michigan, Ann Arbor, Michigan 48108, United States of America
*Corresponding Author
30 April 2024. pp. 20-33
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Abstract

Members of the benthic marine brown macroalgal family Scytosiphonaceae are widely distributed in the tropical to warm temperate coasts and offshore reefs of major ocean basins. As ecologically important components of shallow intertidal down to mesophotic depths, scytosiphonacean taxa contribute to primary production and serve as food and habitat to other marine organisms. As economically important seaweeds, some Scytosiphonaceae can be consumed as food, used as feed additives, and as source of commercially important fucoidan and alginates. Despite these facts, the diversity, systematics, and molecular phylogenetic relationships of members of the Scytosiphonaceae remain understudied and among the most challenging to resolve. Recent approaches integrating molecular tools with traditional morpho-anatomical and life history observations have ushered in significant changes to the systematics of this complex group, including descriptions of new species and genera, and dividing the family into two tribes. Consequently, our understanding of the phylogenetic relationships within the Scytosiphonaceae has also improved. We provide here an overview of the challenges and opportunities in the study of the systematics and molecular phylogenetics of the Scytosiphonaceae, emphasizing the need to integrate multiple lines of evidence to resolve the persistent taxonomic problems within the group. We anticipate that the natural classification of the family Scytosiphonaceae will be achieved as we continue actively and collaboratively working towards the understanding of this complex yet interesting brown seaweeds.

Keywords
algal systematics
Atlantic Ocean
brown algae
Indian Ocean
molecular phylogeny
seaweed
Pacific Ocean
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Information
  • Publisher :Jeju Journal of Island Sciences
  • Publisher(Ko) :제주섬과학회지
  • Journal Title :Jeju Journal of Island Sciences
  • Journal Title(Ko) :제주섬과학회지
  • Volume : 1
  • No :1
  • Pages :20-33
  • Received Date : 2024-01-05
  • Revised Date : 2024-03-22
  • Accepted Date : 2024-03-26
  • DOI :https://doi.org/10.23264/JJIS.2024.1.1.020
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