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Phylotranscriptomic insights into a Mesoproterozoic–Neoproterozoic origin and early radiation of green seaweeds (Ulvophyceae)

Author

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  • Zheng Hou

    (Nanjing Normal University)

  • Xiaoya Ma

    (Nanjing Normal University)

  • Xuan Shi

    (Nanjing Normal University)

  • Xi Li

    (Nanjing Normal University)

  • Lingxiao Yang

    (Nanjing Normal University)

  • Shuhai Xiao

    (Virginia Tech)

  • Olivier Clerck

    (Ghent University)

  • Frederik Leliaert

    (Ghent University
    Meise Botanic Garden)

  • Bojian Zhong

    (Nanjing Normal University)

Abstract

The Ulvophyceae, a major group of green algae, is of particular evolutionary interest because of its remarkable morphological and ecological diversity. Its phylogenetic relationships and diversification timeline, however, are still not fully resolved. In this study, using an extensive nuclear gene dataset, we apply coalescent- and concatenation-based approaches to reconstruct the phylogeny of the Ulvophyceae and to explore the sources of conflict in previous phylogenomic studies. The Ulvophyceae is recovered as a paraphyletic group, with the Bryopsidales being a sister group to the Chlorophyceae, and the remaining taxa forming a clade (Ulvophyceae sensu stricto). Molecular clock analyses with different calibration strategies emphasize the large impact of fossil calibrations, and indicate a Meso-Neoproterozoic origin of the Ulvophyceae (sensu stricto), earlier than previous estimates. The results imply that ulvophyceans may have had a profound influence on oceanic redox structures and global biogeochemical cycles at the Mesoproterozoic-Neoproterozoic transition.

Suggested Citation

  • Zheng Hou & Xiaoya Ma & Xuan Shi & Xi Li & Lingxiao Yang & Shuhai Xiao & Olivier Clerck & Frederik Leliaert & Bojian Zhong, 2022. "Phylotranscriptomic insights into a Mesoproterozoic–Neoproterozoic origin and early radiation of green seaweeds (Ulvophyceae)," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29282-9
    DOI: 10.1038/s41467-022-29282-9
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    1. Jochen J. Brocks & Amber J. M. Jarrett & Eva Sirantoine & Christian Hallmann & Yosuke Hoshino & Tharika Liyanage, 2017. "The rise of algae in Cryogenian oceans and the emergence of animals," Nature, Nature, vol. 548(7669), pages 578-581, August.
    2. Jürgen F. H. Strassert & Iker Irisarri & Tom A. Williams & Fabien Burki, 2021. "A molecular timescale for eukaryote evolution with implications for the origin of red algal-derived plastids," Nature Communications, Nature, vol. 12(1), pages 1-13, December.
    3. Jürgen F. H. Strassert & Iker Irisarri & Tom A. Williams & Fabien Burki, 2021. "Author Correction: A molecular timescale for eukaryote evolution with implications for the origin of red algal-derived plastids," Nature Communications, Nature, vol. 12(1), pages 1-2, December.
    4. Marie Catherine Sforna & Corentin C. Loron & Catherine F. Demoulin & Camille François & Yohan Cornet & Yannick J. Lara & Daniel Grolimund & Dario Ferreira Sanchez & Kadda Medjoubi & Andrea Somogyi & A, 2022. "Intracellular bound chlorophyll residues identify 1 Gyr-old fossils as eukaryotic algae," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
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    Cited by:

    1. Zhiping Yang & Xiaoya Ma & Qiuping Wang & Xiaolin Tian & Jingyan Sun & Zhenhua Zhang & Shuhai Xiao & Olivier Clerck & Frederik Leliaert & Bojian Zhong, 2023. "Phylotranscriptomics unveil a Paleoproterozoic-Mesoproterozoic origin and deep relationships of the Viridiplantae," Nature Communications, Nature, vol. 14(1), pages 1-13, December.

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