Home A new species of the red alga Erythrotrichia (Erythropeltales, Rhodophyta) from Korea: Erythrotrichia johnawestii sp. nov. and observations in culture
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A new species of the red alga Erythrotrichia (Erythropeltales, Rhodophyta) from Korea: Erythrotrichia johnawestii sp. nov. and observations in culture

  • Xianying Wen

    Xianying Wen is a PhD candidate at Kongju National University, Gongju, South Korea. Her major field of research includes the disease, taxonomy and evolution of red algae. Her current research focuses on the diversity of red algal species in Korea based upon morphology and molecular taxonomy.

     ORCID logo     , Giuseppe C. Zuccarello

    Giuseppe C. Zuccarello is interested in the taxonomy, evolution and speciation of algae. His research has focused on mangrove-associate red algae of the genus Bostrychia. He received his PhD degree from the University of California Berkeley. He has been president of the International Phycological Society and is currently a Professor at Victoria University of Wellington. He has published over 180 peer-reviewed papers.

     ORCID logo     , Eunyoung Shim

    Eunyoung Shim received a PhD from Kongju National University in 2021. She is currently a postdoctoral researcher at Kongju Natioanl University. She research the sex differentiation and sex determination of the red algae Bostrychia moritziana. Her main research is studying the ROS signaling and cell signaling in red algae.

     ORCID logo     , Soo Yeon Kim

    Soo Yeon Kim is a Master’s student at Kongju National University, Gongju, South Korea. Her major field of research is cytophysiology of red algae. Her current research focuses on cell motility, spore germination, and aquaculture of Bangia fuscopurpurea.

     ORCID logo     and Gwang Hoon Kim

    Gwang Hoon Kim is a professor at Kongju National University, South Korea. He researches in a broad range of issues related to processes of cell signaling, sexual differentiation, cell-cell recognition, stress responses of algal cells, protein isolation and characterization. His scientific expertise also includes seaweed aquaculture and algal breeding using combined methods of mutation breeding and algal proteomics and genomics.

     ORCID logo EMAIL logo
Published/Copyright: March 17, 2023
Botanica Marina
From the journal Botanica Marina Volume 66 Issue 3

Abstract

Four species of Erythrotrichia (E. biseriata, E. reflexa, E. tetraseriata, E. carnea) have been reported in Korea, but phylogenetic studies have not been conducted on them. We analyzed two newly collected Erythrotrichia isolates using rbcL DNA sequences and determined their species status using four DNA-based species delimitation methods. One isolate (KNU-1) grouped with E. carnea in three methods: Assemble Species by Automatic Partitioning, both single-threshold and multiple-threshold general mixed yule coalescent, but grouped as a distinct species in the statistical parsimony network analysis. A second isolate (KNU-2) was considered a distinct species in all the above species-delimitation methods. We propose the name, Erythrotrichia johnawestii sp. nov., for this new species. The new species was different from E. carnea in lacking a thick outer cell wall layer and with a smaller cell size. Mature monosporangia produced raised openings that released monospores. Cell walls were not detected in newly released monospores but began to appear when the spore attached to the substratum and produced rhizoids. Sexual reproduction was not observed during the four-year culture period.

Keywords: cryptic species; Erythrotrichia carnea ; rbcL; red algae; species delimitation
Corresponding author: Gwang Hoon Kim, Department of Biological Sciences, Kongju National University, Gongju 32588, Korea, E-mail:

Funding source: National Marine Biodiversity Institute of Korea

Award Identifier / Grant number: 2022M01100

Funding source: Development of technology for biomaterialization of marine fisheries by-products of Korea institute of Marine Scinece & Technology Promotion(KIMST) funded by the Ministry of Oceans and Fisheries

Award Identifier / Grant number: KIMST-20220128

Funding source: National Research Foundation of Korea (NRF) grant

Award Identifier / Grant number: NRF-2022R1A2C1091633

About the authors

Xianying Wen

Xianying Wen is a PhD candidate at Kongju National University, Gongju, South Korea. Her major field of research includes the disease, taxonomy and evolution of red algae. Her current research focuses on the diversity of red algal species in Korea based upon morphology and molecular taxonomy.

Giuseppe C. Zuccarello

Giuseppe C. Zuccarello is interested in the taxonomy, evolution and speciation of algae. His research has focused on mangrove-associate red algae of the genus Bostrychia. He received his PhD degree from the University of California Berkeley. He has been president of the International Phycological Society and is currently a Professor at Victoria University of Wellington. He has published over 180 peer-reviewed papers.

Eunyoung Shim

Eunyoung Shim received a PhD from Kongju National University in 2021. She is currently a postdoctoral researcher at Kongju Natioanl University. She research the sex differentiation and sex determination of the red algae Bostrychia moritziana. Her main research is studying the ROS signaling and cell signaling in red algae.

Soo Yeon Kim

Soo Yeon Kim is a Master’s student at Kongju National University, Gongju, South Korea. Her major field of research is cytophysiology of red algae. Her current research focuses on cell motility, spore germination, and aquaculture of Bangia fuscopurpurea.

Gwang Hoon Kim

Gwang Hoon Kim is a professor at Kongju National University, South Korea. He researches in a broad range of issues related to processes of cell signaling, sexual differentiation, cell-cell recognition, stress responses of algal cells, protein isolation and characterization. His scientific expertise also includes seaweed aquaculture and algal breeding using combined methods of mutation breeding and algal proteomics and genomics.

Acknowledgments

We thank Narongrit Muangmai for assistance in species delimitation analysis.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This research was supported by Development of Technology for Biomaterialization of Marine Fisheries By-products of Korea Institute of Marine Science & Technology Promotion (KIMST) funded by the Ministry of Oceans and Fisheries (KIMST-20220128), by the National Marine Biodiversity Institute of Korea (2022M01100), and by the National Research Foundation of Korea (NRF) grant (NRF-2022R1A2C1091633).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/bot-2022-0068).

Received: 2022-10-25
Accepted: 2023-02-17
Published Online: 2023-03-17
Published in Print: 2023-06-27

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/bot-2022-0068
Keywords for this article
cryptic species; Erythrotrichia carnea; rbcL; red algae; species delimitation

Articles in the same Issue

  1. Frontmatter
  2. In this issue
  3. Physiology and Ecology
  4. Range expansion of some non-indigenous seaweeds along the coasts of Brittany – English Channel
  5. Effect of sand-influence on the morphology of Mazzaella laminarioides (Rhodophyta, Gigartinales) on rocky intertidal shores
  6. Taxonomy/Phylogeny and Biogeography
  7. Biodiversity of epiphytic marine macroalgae in Mexico: composition and current status
  8. Genetic differentiation of Gracilaria changii and Gracilaria firma (Gracilariaceae, Rhodophyta) based on chloroplast genome
  9. A new species of the red alga Erythrotrichia (Erythropeltales, Rhodophyta) from Korea: Erythrotrichia johnawestii sp. nov. and observations in culture
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