ArticleThe Plant journal : for cell and molecular biology2025
Algal origins of core land plant stress response subnetworks.
Article in The Plant journal : for cell and molecular biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- The evolutionary origins of streptophyte multicellularity.The New phytologist · 2026Review
- A RAF-SnRK2-PP2C functional module regulates cell survival in the chlorophyte Chlamydomonas reinhardtii.The New phytologist · 2026Article
- Desiccation tolerance mechanisms in the green lineage and beyond.The New phytologist · 2026Review
- PharaohFUN: phylogenomic analysis for plant protein history and function elucidation.Molecular biology and evolution · 2026Article
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6 authors.
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Abstract
We computed co-expression networks from more than 2200 samples of nine species across 600 million years of divergent streptophyte evolution and infer that the streptophyte algal ancestors of land plants already had a remarkable fraction of the embryophytic stress response system. Despite its phytohormone-independent origin, homologs of all core components of the drought hormone abscisic acid (ABA) subnetwork are present, and we find that most are co-expressed in streptophyte algae and land plants; this subnetwork was thus co-opted in embryophytes by bringing it under the regime of ABA. The last common ancestor of embryophytes and Zygnematophyceae algae had ancient stress-responsive pathways, enabling it to face the stresses typical of the land environment - even before the origin of land plants - while evolution on land led to the adaptive refinement of these responses.
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