Plant Origin, but Not Phylogeny, Drive Species Ecophysiological Response to Projected Climate

0540742 - ÚEB 2021 RIV CH eng J - Journal Article
Münzbergová, Z. - Kosová, V. - Schnablová, Renáta - Rokaya, M. - Synková, Helena - Haisel, Daniel - Wilhelmová, Naděžda - Dostálek, T.
Plant Origin, but Not Phylogeny, Drive Species Ecophysiological Response to Projected Climate.
Frontiers in Plant Science. Roč. 11, APR 7 (2020), č. článku 400. ISSN 1664-462X. E-ISSN 1664-462X
R&D Projects: GA ČR(CZ) GA17-10280S
Institutional support: RVO:61389030
Keywords : antioxidants * Balsaminaceae * carotenoids * elevational gradients * genotype × environment interaction * growth chamber experiment * phylogenetic constrains * xanthophyll cycle
OECD category: Plant sciences, botany
Impact factor: 5.754, year: 2020
Method of publishing: Open access
http://doi.org/10.3389/fpls.2020.00400

We studied variation in traits related to growth, leaf chemistry, contents of photosynthetic pigments and activity of antioxidative enzymes, stomata morphology and photosynthetic activity across eight Impatiens species growing along altitudinal gradients in Himalayas cultivated in three different temperature regimes and explored effects of among species phylogenetic relationships on the results. Original and target climatic conditions determine trait values in our system. The traits are either highly plastic (e.g., APX, CAT, plant size, neoxanthin, β-carotene, chlorophyll a/b, DEPSC) or are highly differentiated among populations (stomata density, lutein production). Many traits show strong among population differentiation in degree of plasticity and direction in response to environmental changes. Most traits indicate that the species will profit from the expected warming. This suggests that different processes determine the values of the different traits and separating the importance of genetic differentiation and plasticity is crucial for our ability to predict species response to future climate changes. The results also indicate that evolution of the traits is not phylogenetically constrained but including phylogenetic information into the analysis may improve our understanding of the trait-environment relationships as was apparent from the analysis of SLA.
Permanent Link: http://hdl.handle.net/11104/0318353