A phylogenomically informed five-order system for the closest relatives of land plants

Hess, Sebastian; Williams, Shelby K.; Busch, Anna; Irisarri, Iker; Delwiche, Charles F.; Vries, Sophie de; Darienko, Tatyana; Roger, Andrew J.; Archibald, John M.; Buschmann, Henrik; Schwartzenberg, Klaus von

doi:10.1101/2022.07.06.499032

Cited by 5 publications

(6 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Overall, Mesotaenium responds to stress conditions by formation of LDs containing signature proteins for embryophytic LDs. DISCUSSION Owing to their plain morphology, Zygnematophyceae emerged as unexpected closest algal relatives of land plants (Wickett et al, 2014;One Thousand Plant Transcriptomes Initiative, 2019;Hess et al, 2022). That said, the molecular programs of Zygnematophyceae speak of their close relationships to land plants.…”

Section: Lipid Droplet Formation Constitutes a Stress Response Predat...mentioning

confidence: 99%

“…These data brought a surprise: the filamentous and unicellular Zygnematophyceae—and not other morphologically more elaborate algae—are the closest algal relatives of land plants. Now the first three genomes of major orders of Zygnematophyceae (see Hess et al, 2022) are at hand: Mesotaenium endlicherianum, Spirogloea muscicola (Cheng et al, 2019), and Penium margaritaceum (Jiao et al, 2020). Using these, we are beginning to redefine the molecular chassis shared by land plants and their closest algal relatives.…”

Section: Mainmentioning

confidence: 99%

“…first three genomes of major orders of Zygnematophyceae (see Hess et al, 2022) are at hand: Mesotaenium endlicherianum, Spirogloea muscicola (Cheng et al, 2019), and Penium margaritaceum (Jiao et al, 2020). Using these, we are beginning to redefine the molecular chassis shared by land plants and their closest algal relatives.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Environmental gradients reveal stress hubs predating plant terrestrialization

Dadras

Fürst-Jansen

Darienko

et al. 2022

Preprint

View full text Add to dashboard Cite

Plant terrestrialization brought forth the land plants (embryophytes). Embryophytes account for most of the biomass on land and evolved from streptophyte algae in a singular event. Recent advances have unraveled the first full genomes of the closest algal relatives of land plants; among the first such species was Mesotaenium endlicherianum. Here, we used fine-combed RNAseq in tandem with photophysiological assessment on Mesotaenium exposed to a continuous range of temperature and light cues. Our data establish a grid of 42 different conditions, resulting in 128 transcriptomes and ~1.5 Tbp (~9.9 billion reads) of data to study combinatory effects of stress response using clustering along gradients. We describe major hubs in genetic networks underpinning stress response and acclimation in the molecular physiology of Mesotaenium. Our data suggest that lipid droplet formation, plastid and cell wall-derived signals denominate molecular programs since more than 600 million years of streptophyte evolution - before plants made their first steps on land.

show abstract

Section: Lipid Droplet Formation Constitutes a Stress Response Predat...mentioning

confidence: 99%

Section: Mainmentioning

confidence: 99%

See 1 more Smart Citation

Environmental gradients reveal stress hubs predating plant terrestrialization

Dadras

Fürst-Jansen

Darienko

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Our study suggests that such cell size variation may be partly due to genome size variation in this species. The correlation between genome size and cell size was also Micrasterias that to the same family Desmidiaceae as Closterium (Hess et al, 2022;Poulíèková et al, 2014).…”

Section: Comparison Of Genome Size and Morphological Featuresmentioning

confidence: 83%

Diversity of genome size and chromosome number in homothallic and heterothallic strains of the Closterium peracerosum–strigosum–littorale complex (Desmidiales, Zygnematophyceae, Streptophyta)

Tsuchikane,

Watanabe,

Kawaguchi

et al. 2024

Journal of Phycology

View full text Add to dashboard Cite

The evolutionary transitions of mating systems between outcrossing and self‐fertilization are often suggested to associate with the cytological and genomic changes, but the empirical reports are limited in multicellular organisms. Here we used the unicellular zygnematophycean algae, the Closterium peracerosum–strigosum–littorale (C. psl.) complex, to address whether genomic properties such as genome sizes and chromosome numbers are associated with mating system transitions between homothallism (self‐fertility) and heterothallism (self‐sterility). Phylogenetic analysis revealed the polyphyly of homothallic strains, suggesting multiple transitions between homothallism and heterothallism in the C. psl. complex. Flow cytometry analysis identified a more than 2‐fold genome size variation, ranging from 0.53 to 1.42 Gbp, which was positively correlated with chromosome number variation between strains. Although we did not find consistent trends in genome size change and mating system transitions, the mean chromosome sizes tend to be smaller in homothallic strains than in their relative heterothallic strains. This result suggests that homothallic strains possibly have more fragmented chromosomes, which is consistent with the argument that self‐fertilizing populations may tolerate more chromosomal rearrangements.

show abstract

“…Figure 1 provides an introduction to each group, and detailed information about charophyte body plans, development, reproduction, and ecology may be obtained in Graham et al (2016) . It is now thought that all land plants evolved from a single streptophyte algal progenitor 500–600+ million years ago ( Fürst-Jansen et al, 2021 ), and phylogenomic analyses have now clearly confirmed that the Zygnematophyceae are sister to embryophytes ( Delwiche and Cooper, 2015 ; Harholt et al, 2016 ; de Vries and Archibald, 2018 ; Puttick et al, 2018 ; Zhou and von Schwartzenberg, 2020 ; Hess et al, 2022 ).…”

Section: The Charophytes Groupsmentioning

confidence: 99%

The cell biology of charophytes: Exploring the past and models for the future

Domozych

Bagdan

2022

Plant Physiology

View full text Add to dashboard Cite

Charophytes represent a diverse assemblage of extant green algae that are the sister lineage to land plants. 500-600+ million years ago, a charophyte progenitor successfully colonized land and subsequently gave rise to land plants. Charophytes have diverse but relatively simple body plans that make them highly attractive organisms for many areas of biological research. At the cellular level, many charophytes have been used for deciphering cytoskeletal networks and their dynamics, membrane trafficking, extracellular matrix secretion and cell division mechanisms. Some charophytes live in challenging habitats and have become excellent models for elucidating the cellular and molecular effects of various abiotic stressors on plant cells. Recent sequencing of several charophyte genomes has also opened doors for the dissection of biosynthetic and signaling pathways. While we are only in an infancy stage in elucidating the cell biology of charophytes, the future application of novel analytical methodologies in charophyte studies that include a broader survey of inclusive taxa will enhance our understanding of plant evolution and cell dynamics.

show abstract

A phylogenomically informed five-order system for the closest relatives of land plants

Cited by 5 publications

References 79 publications

Environmental gradients reveal stress hubs predating plant terrestrialization

Environmental gradients reveal stress hubs predating plant terrestrialization

Diversity of genome size and chromosome number in homothallic and heterothallic strains of the Closterium peracerosum–strigosum–littorale complex (Desmidiales, Zygnematophyceae, Streptophyta)

The cell biology of charophytes: Exploring the past and models for the future

Contact Info

Product

Resources

About