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Metabolome expression in Eucryphia cordifolia populations: Role of seasonality and ecological niche centrality hypothesis

  • Regular Paper – Ecology/Ecophysiology/Environmental Biology
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A Correction to this article was published on 30 August 2023

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Abstract

The ecological niche centrality hypothesis states that population abundance is determined by the position in the ecological niche, expecting higher abundances towards the center of the niche and lower at the periphery. However, the variations in the conditions that favor the persistence of populations between the center and the periphery of the niche can be a surrogate of stress factors that are reflected in the production of metabolites in plants. In this study we tested if metabolomic similarity and diversity in populations of the tree species Eucryphia cordifolia Cav. vary according to their position with respect to the structure of the ecological niche. We hypothesize that populations growing near the centroid should exhibit lower metabolites diversity than plants growing at the periphery of the niche. The ecological niche of the species was modeled using correlative approaches and bioclimatic variables to define central and peripheral localities from which we chose four populations to obtain their metabolomic information using UHPLC-DAD-QTOF-MS. We observed that populations farther away from the centroid tend to have higher metabolome diversity, thus supporting our expectation of the niche centrality hypothesis. Nonetheless, the Shannon index showed a marked variation in metabolome diversity at the seasonal level, with summer and autumn being the periods with higher metabolite diversity compared to winter and spring. We conclude that both the environmental variation throughout the year in combination with the structure of the ecological niche are relevant to understand the variation in expression of metabolites in plants.

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Acknowledgements

C.F.C gratefully acknowledge financial support was provided by National Research and Development Agency (ANID), Doctoral Scholarship Nº 21170525. O.T.N. was funded by CONICYT PAI Subvención a la Instalación en la Academia Convocatoria 2019 N°77190055. A.J.P was supported by ANID/CONICYT FONDECYT Regular 1181915 and FONDEQUIP EQM170023. We thank a National Forestry Corporation (CONAF) and Forestal Mininco S.A. (CMPC) or allowing us access to obtain plant material at their facilities. To the Laboratory of Natural Products Chemistry and Plant Metabolomics Laboratory, Universidad de Concepción for providing us with the facilities for processing the samples.

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Camila Fuica Carrasco contributed to the research design, fieldwork, laboratory work and drafting of the manuscript.

Óscar Toro-Núñez contributed to research design, elaboration of the ecological niche modeling, data processing in R, revision and editing manuscript.

Andrés Lira-Noriega contributed to research design, elaboration of the ecological niche modeling, revision and editing of the manuscript.

Andy J. Pérez contributed to interpretation of metabolomic data and revision of the manuscript.

Víctor Hernández contributed to the management of access to Chile protected and private areas, financing, and manuscript review.

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Correspondence to Camila Fuica-Carrasco.

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The original online version of this article was revised due to corresponding author’s name was published incorrectly and corrected in this version.

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Fuica-Carrasco, C., Toro-Núñez, Ó., Lira-Noriega, A. et al. Metabolome expression in Eucryphia cordifolia populations: Role of seasonality and ecological niche centrality hypothesis. J Plant Res 136, 827–839 (2023). https://doi.org/10.1007/s10265-023-01483-3

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  • DOI: https://doi.org/10.1007/s10265-023-01483-3

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