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Genomes of early-diverging streptophyte algae shed light on plant terrestrialization

Sibo Wang, Linzhou Li, Haoyuan Li, Sunil Kumar Sahu, Hongli Wang, Yan Xu, Wenfei Xian, Bo Song, Hongping Liang, Shifeng Cheng, et al.
(2020) NATURE PLANTS. 6(2). p.95-106
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Abstract
Mounting evidence suggests that terrestrialization of plants started in streptophyte green algae, favoured by their dual existence in freshwater and subaerial/terrestrial environments. Here, we present the genomes of Mesostigma viride and Chlorokybus atmophyticus, two sister taxa in the earliest-diverging clade of streptophyte algae dwelling in freshwater and subaerial/terrestrial environments, respectively. We provide evidence that the common ancestor of M. viride and C. atmophyticus (and thus of streptophytes) had already developed traits associated with a subaerial/terrestrial environment, such as embryophyte-type photorespiration, canonical plant phytochrome, several phytohormones and transcription factors involved in responses to environmental stresses, and evolution of cellulose synthase and cellulose synthase-like genes characteristic of embryophytes. Both genomes differed markedly in genome size and structure, and in gene family composition, revealing their dynamic nature, presumably in response to adaptations to their contrasting environments. The ancestor of M. viride possibly lost several genomic traits associated with a subaerial/terrestrial environment following transition to a freshwater habitat.
Keywords
TRANSCRIPTION FACTORS, EVOLUTION, ORIGIN, INSIGHTS, ETHYLENE, HORMONE, STRESS, FAMILY, GENES

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MLA
Wang, Sibo, et al. “Genomes of Early-Diverging Streptophyte Algae Shed Light on Plant Terrestrialization.” NATURE PLANTS, vol. 6, no. 2, 2020, pp. 95–106, doi:10.1038/s41477-019-0560-3.
APA
Wang, S., Li, L., Li, H., Sahu, S. K., Wang, H., Xu, Y., … Liu, X. (2020). Genomes of early-diverging streptophyte algae shed light on plant terrestrialization. NATURE PLANTS, 6(2), 95–106. https://doi.org/10.1038/s41477-019-0560-3
Chicago author-date
Wang, Sibo, Linzhou Li, Haoyuan Li, Sunil Kumar Sahu, Hongli Wang, Yan Xu, Wenfei Xian, et al. 2020. “Genomes of Early-Diverging Streptophyte Algae Shed Light on Plant Terrestrialization.” NATURE PLANTS 6 (2): 95–106. https://doi.org/10.1038/s41477-019-0560-3.
Chicago author-date (all authors)
Wang, Sibo, Linzhou Li, Haoyuan Li, Sunil Kumar Sahu, Hongli Wang, Yan Xu, Wenfei Xian, Bo Song, Hongping Liang, Shifeng Cheng, Yue Chang, Yue Song, Zehra Çebi, Sebastian Wittek, Tanja Reder, Morten Peterson, Huanming Yang, Jian Wang, Barbara Melkonian, Yves Van de Peer, Xun Xu, Gane Ka-Shu Wong, Michael Melkonian, Huan Liu, and Xin Liu. 2020. “Genomes of Early-Diverging Streptophyte Algae Shed Light on Plant Terrestrialization.” NATURE PLANTS 6 (2): 95–106. doi:10.1038/s41477-019-0560-3.
Vancouver
1.
Wang S, Li L, Li H, Sahu SK, Wang H, Xu Y, et al. Genomes of early-diverging streptophyte algae shed light on plant terrestrialization. NATURE PLANTS. 2020;6(2):95–106.
IEEE
[1]
S. Wang et al., “Genomes of early-diverging streptophyte algae shed light on plant terrestrialization,” NATURE PLANTS, vol. 6, no. 2, pp. 95–106, 2020.
@article{8639307,
  abstract     = {{Mounting evidence suggests that terrestrialization of plants started in streptophyte green algae, favoured by their dual existence in freshwater and subaerial/terrestrial environments. Here, we present the genomes of Mesostigma viride and Chlorokybus atmophyticus, two sister taxa in the earliest-diverging clade of streptophyte algae dwelling in freshwater and subaerial/terrestrial environments, respectively. We provide evidence that the common ancestor of M. viride and C. atmophyticus (and thus of streptophytes) had already developed traits associated with a subaerial/terrestrial environment, such as embryophyte-type photorespiration, canonical plant phytochrome, several phytohormones and transcription factors involved in responses to environmental stresses, and evolution of cellulose synthase and cellulose synthase-like genes characteristic of embryophytes. Both genomes differed markedly in genome size and structure, and in gene family composition, revealing their dynamic nature, presumably in response to adaptations to their contrasting environments. The ancestor of M. viride possibly lost several genomic traits associated with a subaerial/terrestrial environment following transition to a freshwater habitat.}},
  author       = {{Wang, Sibo and Li, Linzhou and Li, Haoyuan and Sahu, Sunil Kumar and Wang, Hongli and Xu, Yan and Xian, Wenfei and Song, Bo and Liang, Hongping and Cheng, Shifeng and Chang, Yue and Song, Yue and Çebi, Zehra and Wittek, Sebastian and Reder, Tanja and Peterson, Morten and Yang, Huanming and Wang, Jian and Melkonian, Barbara and Van de Peer, Yves and Xu, Xun and Wong, Gane Ka-Shu and Melkonian, Michael and Liu, Huan and Liu, Xin}},
  issn         = {{2055-0278}},
  journal      = {{NATURE PLANTS}},
  keywords     = {{TRANSCRIPTION FACTORS,EVOLUTION,ORIGIN,INSIGHTS,ETHYLENE,HORMONE,STRESS,FAMILY,GENES}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{95--106}},
  title        = {{Genomes of early-diverging streptophyte algae shed light on plant terrestrialization}},
  url          = {{http://doi.org/10.1038/s41477-019-0560-3}},
  volume       = {{6}},
  year         = {{2020}},
}
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