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Three-dimensional growth: a developmental innovation that facilitated plant terrestrialization

Abstract:
One of the most transformative events in the history of life on earth was the transition of plants from water to land approximately 470 million years ago. Within the Charophyte green algae, the closest living relatives of land plants, body plans have evolved from those that comprise simple unicells to those that are morphologically complex, large and multicellular. The Charophytes developed these broad ranging body plans by exploiting a range of one-dimensional and two-dimensional growth strategies to produce filaments, mats and branches. When plants were confronted with harsh conditions on land, they were required to make significant changes to the way they shaped their body plans. One of the fundamental developmental transitions that occurred was the evolution of three-dimensional growth and the acquisition of apical cells with three or more cutting faces. Plants subsequently developed a range of morphological adaptations (e.g. vasculature, roots, flowers, seeds) that enabled them to colonise progressively drier environments. 3D apical growth also evolved convergently in the brown algae, completely independently of the green lineage. This review summarises the evolving developmental complexities observed in the early divergent Charophytes all the way through to the earliest conquerors of land, and investigates 3D apical growth in the brown algae.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/s10265-020-01173-4

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Plant Sciences
Role:
Author


Publisher:
Springer
Journal:
Journal of Plant Research More from this journal
Volume:
133
Issue:
3
Pages:
283–290
Place of publication:
Japan
Publication date:
2020-02-24
Acceptance date:
2020-02-11
DOI:
EISSN:
1618-0860
ISSN:
0918-9440
Pmid:
32095969


Language:
English
Keywords:
Pubs id:
1090137
Local pid:
pubs:1090137
Deposit date:
2020-03-18

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