ArticleAnnals of botany2022
Phylogenetic, ecological and intraindividual variability patterns in grass phytolith shape.
Article in Annals of botany, 2022. 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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5 citing papers in PubMed.
- Automating the bottleneck: a scalable deep learning pipeline for phytolith detection, imaging, and curation across single-cell and multi-cell morphotypes.Frontiers in plant science · 2026Article
- Inter- and intra-observer variation in phytolith morphometry.Annals of botany · 2025Article
- Exploring silica accumulation in bamboo leaves: a study on phytolith morphology and epidermal patterning in the tropical giant bamboo Dendrocalamus copelandii.Annals of botany · 2025Article
- Elongate dendritic phytoliths as indicators for cereal identification and domestication: exploring a 3D morphometric approach.Frontiers in plant science · 2025Article
- Deep learning approaches to the phylogenetic placement of extinct pollen morphotypes.PNAS nexus · 2024Article
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4 authors.
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Abstract
BACKGROUND AND
aimsGrass silica short cell (GSSC) phytoliths appear to be the most reliable source of fossil evidence for tracking the evolutionary history and paleoecology of grasses. In recent years, modern techniques that quantitatively assess phytolith shape variation have widened opportunities for the classification of grass fossil phytoliths. However, phylogenetic, ecological and intraindividual variability patterns in phytolith shape remain largely unexplored.
methodsThe full range of intraindividual phytolith shape variation [3650 two-dimensional (2-D) outlines] from 73 extant grass species, 48 genera, 18 tribes and eight subfamilies (particularly Pooideae) was analysed using geometric morphometric analysis based on semi-landmarks spanning phytolith outlines. KEY
resultsThe 2-D phytolith shape is mainly driven by deep-time diversification of grass subfamilies. There is distinct phytolith shape variation in early-diverging lineages of Pooideae (Meliceae, Stipeae). The amount of intraindividual variation in phytolith shape varies among species, resulting in a remarkable pattern across grass phylogeny.
conclusionsThe phylogenetic pattern in phytolith shape was successfully revealed by applying geometric morphometrics to 2-D phytolith shape outlines, strengthening the potential of phytoliths to track the evolutionary history and paleoecology of grasses. Geometric morphometrics of 2-D phytolith shape is an excellent tool for analysis requiring large numbers of phytolith outlines, making it useful for quantitative palaeoecological reconstruction.
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