Diversity of parental environments increases phenotypic variation in Arabidopsis populations more than genetic diversity but similarly affects productivity

0544264 - BÚ 2022 RIV GB eng J - Journal Article
Puy, J. - Carmona, C. P. - Dvořáková, H. - Latzel, Vít - De Bello, F.
Diversity of parental environments increases phenotypic variation in Arabidopsis populations more than genetic diversity but similarly affects productivity.
Annals of Botany. Roč. 127, č. 4 (2021), s. 425-436. ISSN 0305-7364. E-ISSN 1095-8290
R&D Projects: GA ČR GA20-00871S
Institutional support: RVO:67985939
Keywords : Arabidopsis thaliana * epigenetic diversity * functional traits
OECD category: Biodiversity conservation
Impact factor: 5.040, year: 2021
Method of publishing: Open access
https://doi.org/10.1093/aob/mcaa100

We experimentally disentangled the role of genetic diversity and diversity of parental environments on population productivity, resistance against environmental fluctuations and intraspecific phenotypic variation. Parental environments triggered phenotypic modifications in the offspring, which translated into more functionally diverse populations when offspring from parents grown under different conditions were brought together in mixtures. When the epigenetic variation was reduced via demethylation, mixtures were less productive than monocultures (i.e. negative net diversity effect), caused by the reduction of phenotypic differences between different parental origins. Disentangling the effect of genetic diversity and that of parental environments appears to be an important step in understanding the effect of intraspecific trait variability on coexistence and ecosystem functioning.
Permanent Link: http://hdl.handle.net/11104/0321292