ArticleAnnals of botany2024
The evolution of the duckweed ionome mirrors losses in structural complexity.
Article in Annals of botany, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 8 citations in OpenAlex.
- Duckweeds: from fundamental biology to a sustainable plant chassis for biotechnology.Advanced biotechnology · 2026Review
- Article
- An ecological, phenotypic, and genomic survey of duckweeds with their associated aquatic environments in the United Kingdom.AoB PLANTS · 2025Article
- Growth Allocation Shifts in the InvasivePlants (Basel, Switzerland) · 2024Article
- Physiological adaptation to irradiance in duckweeds is species and accession specific and depends on light habitat niche.Journal of experimental botany · 2024Article
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Authors and funding
6 authors at 1 institution in 2 countries.
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Abstract
BACKGROUND AND
aimsThe duckweeds (Lemnaceae) consist of 36 species exhibiting impressive phenotypic variation, including the progressive evolutionary loss of a fundamental plant organ, the root. Loss of roots and reduction of vascular tissues in recently derived taxa occur in concert with genome expansions of ≤14-fold. Given the paired loss of roots and reduction in structural complexity in derived taxa, we focus on the evolution of the ionome (whole-plant elemental contents) in the context of these fundamental changes in body plan. We expect that progressive vestigiality and eventual loss of roots might have both adaptive and maladaptive consequences that are hitherto unknown.
methodsWe quantified the ionomes of 34 accessions in 21 species across all duckweed genera, spanning 70 Myr in this rapidly cycling plant (doubling times are as rapid as ~24 h). We related both micro- and macroevolutionary ionome contrasts to body plan remodelling and showed nimble microevolutionary shifts in elemental accumulation and exclusion in novel accessions. KEY
resultsWe observed a robust directional trend in calcium and magnesium levels, decreasing from the ancestral representative Spirodela genus towards the derived rootless Wolffia, with the latter also accumulating cadmium. We also identified abundant within-species variation and hyperaccumulators of specific elements, with this extensive variation at the fine (as opposed to broad) scale.
conclusionsThese data underscore the impact of root loss and reveal the very fine scale of microevolutionary variation in hyperaccumulation and exclusion of a wide range of elements. Broadly, they might point to trade-offs not well recognized in ionomes.
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