ArticlePloS one2018
Quillworts from the Amazon: A multidisciplinary populational study on Isoetes serracarajensis and Isoetes cangae.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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Who cites it
9 citing papers in PubMed, 26 citations in OpenAlex.
- Multilamellated zones in the sporoderm of heterosporous lycopsids: adaptive trait or evolutionary spandrel?Annals of botany · 2026Review
- Organellar-genome analyses from the lycophyte genusFrontiers in plant science · 2024Article
- Silicon in sporoderms of micro- and megaspores of Isoetes echinospora Durieu registered by EDS and EELS.Protoplasma · 2023Article
- Mainstreaming Flora Conservation Strategies into the Mitigation Hierarchy to Strengthen Environmental Impact Assessment.Environmental management · 2023Review
- Article
- Phylogeny of Merlin's grass (Isoetaceae): revealing an "Amborella syndrome" and the importance of geographic distribution for understanding current and historical diversity.BMC ecology and evolution · 2022Article
- Unraveling the plant diversity of the AmazonianEcology and evolution · 2021Article
- Conservation implications of genetic structure in the narrowest endemic quillwort from the Eastern Amazon.Ecology and evolution · 2021Article
- Article
Corrections and comments
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Authors and funding
23 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Isoetes are ancient quillworts members of the only genus of the order Isoetales. The genus is slow evolving but is resilient, and widespread worldwide. Two recently described species occur in the Eastern Brazilian Amazon, Isoetes serracarajensis and Isoetes cangae. They are found in the ironstone grasslands known as Canga. While I. serracarajensis is present mostly in seasonal water bodies, I. cangae is known to occur in a single permanent lake at the South mountain range. In this work, we undertake an extensive morphological, physiological and genetic characterization of both species to establish species boundaries and better understand the morphological and genetic features of these two species. Our results indicate that the morphological differentiation of the species is subtle and requires a quantitative assessment of morphological elements of the megaspore for diagnosis. We did not detect differences in microspore output, but morphological peculiarities may establish a reproductive barrier. Additionally, genetic analysis using DNA barcodes and whole chloroplast genomes indicate that although the plants are genetically very similar both approaches provide diagnostic characters. There was no indication of population structuring I. serracarajensis. These results set the basis for a deeper understanding of the evolution of the Isoetes genus.
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Registered trials
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