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| DOI: | 10.1093/aob/mcaa102 |
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| Web URL(s): | https://academic.oup.com/aob/article/127/2/191/5848299
Last checked: 4/15/2021
Access conditions: Item is within a limited-access website
https://academic.oup.com/aob/article-pdf/127/2/191/5848299/mcaa102.pdf
Last checked: 4/15/2021
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Ho^D&sková, Kristýna;
Pokorná, Adéla;
Neustupa, Ji^D&rĂ;
PokornĂ˝, Petr |
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| Author Affiliation: | Ho^D&sková and Neustupa: Department of Botany, Faculty of Sciences, Charles University, Prague, Czech Republic; Pokorná: Department of Botany, Faculty of Sciences, Charles University, Prague, Czech Republic and Institute of Archaeology, Czech Academy of Sciences, Czech Republic; Pokorný: Center for Theoretical Study, Joint Research Institute of Charles University and Czech Academy of Sciences, Husova, Czech Republic |
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| Title: | Inter- and intraspecific variation in grass phytolith shape and size: A geometric morphometrics perspective |
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| Source: | Annals of Botany. Vol. 127, No. 2, February 1 2021, p. 191-201. |
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| Publishing Information: | London, England, United Kingdom: Academic Press Inc. Limited |
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| # of Pages: | 11 |
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| Related Web URL: | https://academic.oup.com/aob/article-abstract/127/2/191/5848299
Last checked: 4/15/2021
Notes: Abstract only |
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| Keywords: | Author-Supplied Keywords: Phytolith analysis; Intraspecific variation; Landmark-based geometric morphometrics; Generalized Procrustes superimposition; Paleoecology; Brachypodium pinnatum; Brachypodium sylvaticum
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| Abstract/Contents: | "Background and aims: The relative contributions of inter- and intraspecific variation to phytolith shape and size have only been investigated in a limited number of studies. However, a detailed understanding of phytolith variation patterns among populations or even within a single plant specimen is of key importance for the correct taxonomic identification of grass taxa in fossil samples and for the reconstruction of vegetation and environmental conditions in the past. In this study, we used geometric morphometric analysis for the quantification of different sources of phytolith shape and size variation. Methods: We used landmark-based geometric morphometric methods for the analysis of phytolith shapes in two extant grass species (Brachypodium pinnatum and B. sylvaticum). For each species, 1200 phytoliths were analysed from 12 leaves originating from six plants growing in three populations. Phytolith shape and size data were subjected to multivariate Procrustes analysis of variance (ANOVA), multivariate regression, principal component analysis and linear discriminant analysis. Key results: Interspecific variation largely outweighed intraspecific variation with respect to phytolith shape. Individual phytolith shapes were classified with 83 % accuracy into their respective species. Conversely, variation in phytolith shapes within species but among populations, possibly related to environmental heterogeneity, was comparatively low. Conclusions: Our results imply that phytolith shape relatively closely corresponds to the taxonomic identity of closely related grass species. Moreover, our methodological approach, applied here in phytolith analysis for the first time, enabled the quantification and separation of variation that is not related to species discrimination. Our findings strengthen the role of grass phytoliths in the reconstruction of past vegetation dynamics." |
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| Language: | English |
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| References: | 89 |
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| Note: | Pictures, color
Figures
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ho^D&sková, K., A. Pokorná, J. Neustupa, and P. Pokorný. 2021. Inter- and intraspecific variation in grass phytolith shape and size: A geometric morphometrics perspective. Ann. Bot. 127(2):p. 191-201. |
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| DOI: 10.1093/aob/mcaa102 |
| Web URL(s):
https://academic.oup.com/aob/article/127/2/191/5848299
Last checked: 4/15/2021
Access conditions: Item is within a limited-access website
https://academic.oup.com/aob/article-pdf/127/2/191/5848299/mcaa102.pdf
Last checked: 4/15/2021
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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