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dc.contributor.authorHetherington, Alexander J
dc.contributor.authorBridson, Siobhán L
dc.contributor.authorLee Jones, Anna
dc.contributor.authorHass, Hagen
dc.contributor.authorKerp, Hans
dc.contributor.authorDolan, Liam
dc.date.accessioned2021-09-25T01:06:30Z
dc.date.available2021-09-25T01:06:30Z
dc.date.issued2021-08-24
dc.identifier.issn2050-084X
dc.identifier.other34425940
dc.identifier.otherPMC8384418
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/328523
dc.descriptionFunder: Biotechnology and Biological Sciences Research Council
dc.description.abstractThe Early Devonian Rhynie chert preserves the earliest terrestrial ecosystem and informs our understanding of early life on land. However, our knowledge of the 3D structure, and development of these plants is still rudimentary. Here we used digital 3D reconstruction techniques to produce the first well-evidenced reconstruction of the structure and development of the rooting system of the lycopsid Asteroxylon mackiei, the most complex plant in the Rhynie chert. The reconstruction reveals the organisation of the three distinct axis types - leafy shoot axes, root-bearing axes, and rooting axes - in the body plan. Combining this reconstruction with developmental data from fossilised meristems, we demonstrate that the A. mackiei rooting axis - a transitional lycophyte organ between the rootless ancestral state and true roots - developed from root-bearing axes by anisotomous dichotomy. Our discovery demonstrates how this unique organ developed and highlights the value of evidence-based reconstructions for understanding the development and evolution of the first complex vascular plants on Earth.
dc.languageeng
dc.publishereLife Sciences Publications, Ltd
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceessn: 2050-084X
dc.sourcenlmid: 101579614
dc.subjectFossil plants
dc.subjectPlant Biology
dc.subjectEvolutionary Biology
dc.subjectNone
dc.subjectLycophyte
dc.subjectRhynie Chert
dc.subjectRoot Evolution
dc.subjectAsteroxylon
dc.titleAn evidence-based 3D reconstruction of Asteroxylon mackiei, the most complex plant preserved from the Rhynie chert.
dc.typeArticle
dc.date.updated2021-09-25T01:06:29Z
prism.publicationNameElife
prism.volume10
dc.identifier.doi10.17863/CAM.75971
dcterms.dateAccepted2021-08-05
rioxxterms.versionofrecord10.7554/eLife.69447
rioxxterms.versionVoR
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidHetherington, Alexander J [0000-0002-1687-818X]
dc.contributor.orcidDolan, Liam [0000-0003-1206-7096]
dc.identifier.eissn2050-084X
pubs.funder-project-idMedical Research Council (MR/T018585/1)
cam.issuedOnline2021-08-24


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International