Startseite Molecular data reveals two new species of Hypnea (Cystocloniaceae, Rhodophyta) from India: Hypnea indica sp. nov. and Hypnea bullata sp. nov.
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Molecular data reveals two new species of Hypnea (Cystocloniaceae, Rhodophyta) from India: Hypnea indica sp. nov. and Hypnea bullata sp. nov.

  • Pushpendu Kundu

    Pushpendu Kundu is a PhD candidate of the Centre for Biosciences, Central University of Punjab, India. His major field of research includes the taxonomy, phylogeography, evolution and biogeography of marine macroalgae. His current research focuses on biodiversity characterization of Florideophyceae from the Indian coast and the eastern Antarctica coast based upon molecular taxonomy-assisted polyphasic approach.

     EMAIL logo     und Felix Bast

    Dr Felix Bast is an associate professor and science writer based at the Central University of Punjab, Bathinda, Punjab, India where he is heading the Department of Botany. He earned his PhD degree in marine biology from MEXT, Japan. He has research interest in marine biology, taxonomy, phylogeography, molecular systematics of algae and liberal arts. He is a known science communicator in India through his writings, outreach talks and YouTube videos fostering critical thinking and scientific skepticism.

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Veröffentlicht/Copyright: 23. März 2021
Botanica Marina
Aus der Zeitschrift Botanica Marina Band 64 Heft 2

Abstract

We used three molecular markers (COI-5P, rbcL and UPA) to investigate the diversity of Hypnea spp., an economically important red algal genus, collected from India. Our concatenated tree (COI-5P and rbcL) supported the monophyly of two new species, Hypnea indica sp. nov. and Hypnea bullata sp. nov. H. indica diverged from its closest two sister species, Hypnea cervicornis and Hypnea tenuis (by 15.9 and 11.2%, respectively, in COI-5P; and 3.4 and 3.2% in rbcL). We describe H. indica as a new species characterised by an erect, percurrent main axis with spine-like branchlets in acute angles, straight and forked apices, axial cells surrounded by large periaxial cells or two cells similar in size to the axial cell, and the presence of lenticular thickening in the cross-section of the thallus. H. bullata diverged from its closest sister species, Hypnea brasiliensis (by 10.9% in COI-5P and 3.3% in rbcL). H. bullata is characterized by a prostrate thallus up to 1.5 cm in height, highly anastomosed, with an axial cell surrounded by similar sized, or smaller, periaxial cells, tetrasporangia present near the base of branchlets, and the presence of lenticular thickening.

Keywords: algae; Hypnea; India; multilocus; phylogeny
Corresponding author: Felix Bast, Department of Botany, Central University of Punjab, Ghudda, Bathinda151401, India, E-mail:

Funding source: DST-SERB Core Research Grant

Award Identifier / Grant number: CRG/20l9/005499

About the authors

Pushpendu Kundu

Pushpendu Kundu is a PhD candidate of the Centre for Biosciences, Central University of Punjab, India. His major field of research includes the taxonomy, phylogeography, evolution and biogeography of marine macroalgae. His current research focuses on biodiversity characterization of Florideophyceae from the Indian coast and the eastern Antarctica coast based upon molecular taxonomy-assisted polyphasic approach.

Felix Bast

Dr Felix Bast is an associate professor and science writer based at the Central University of Punjab, Bathinda, Punjab, India where he is heading the Department of Botany. He earned his PhD degree in marine biology from MEXT, Japan. He has research interest in marine biology, taxonomy, phylogeography, molecular systematics of algae and liberal arts. He is a known science communicator in India through his writings, outreach talks and YouTube videos fostering critical thinking and scientific skepticism.

Acknowledgments

We are thankful to three anonymous reviewers for their constructive criticisms that have substantially helped to improve a previous version of this manuscript.

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

  2. Research funding: This study was supported by a grant from the Department of Science and Technology-Government of India, SERB Core Research Grant, awarded to F.B. (Grant No. CRG/20l9/005499). P.K. thanks the Central University of Punjab for the financial support for his PhD research work.

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

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Supplementary Material

The online version of this article offers supplementary material (https://doi.org/10.1515/bot-2020-0069).

Received: 2020-11-09
Accepted: 2021-03-09
Published Online: 2021-03-23
Published in Print: 2021-04-27

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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  2. In this issue
  3. Physiology and ecology
  4. Flow cytometric measurements as a proxy for sporulation intensity in the cultured macroalga Ulva (Chlorophyta)
  5. Effects of river water inflow on the growth, photosynthesis, and respiration of the tropical seagrass Halophila ovalis
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  9. Taxonomy/phylogeny and biogeography
  10. Molecular data reveals two new species of Hypnea (Cystocloniaceae, Rhodophyta) from India: Hypnea indica sp. nov. and Hypnea bullata sp. nov.
  11. Morphological and molecular characterization of Gambierdiscus caribaeus (Dinophyceae), with a confirmation of its occurrence in the Colombian Caribbean Tayrona National Natural Park
  12. Erratum
  13. Erratum to: The effects of phosphate on physiological responses and carbohydrate production in Ulva fasciata (Chlorophyta) from upwelling and non-upwelling site
https://doi.org/10.1515/bot-2020-0069
Schlagwörter für diesen Artikel
algae; Hypnea; India; multilocus; phylogeny

Artikel in diesem Heft

  1. Frontmatter
  2. In this issue
  3. Physiology and ecology
  4. Flow cytometric measurements as a proxy for sporulation intensity in the cultured macroalga Ulva (Chlorophyta)
  5. Effects of river water inflow on the growth, photosynthesis, and respiration of the tropical seagrass Halophila ovalis
  6. Diversity and composition of algal epiphytes on the Mediterranean seagrass Cymodocea nodosa: a scale-based study
  7. Abundance of a recently discovered Alaskan rhodolith bed in a shallow, seagrass-dominated lagoon
  8. Two red macroalgae newly introduced into New Zealand: Pachymeniopsis lanceolata (K. Okamura) Y. Yamada ex S. Kawabata and Fushitsunagia catenata Filloramo et G. W. Saunders
  9. Taxonomy/phylogeny and biogeography
  10. Molecular data reveals two new species of Hypnea (Cystocloniaceae, Rhodophyta) from India: Hypnea indica sp. nov. and Hypnea bullata sp. nov.
  11. Morphological and molecular characterization of Gambierdiscus caribaeus (Dinophyceae), with a confirmation of its occurrence in the Colombian Caribbean Tayrona National Natural Park
  12. Erratum
  13. Erratum to: The effects of phosphate on physiological responses and carbohydrate production in Ulva fasciata (Chlorophyta) from upwelling and non-upwelling site
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