TY  - GEN
T1  - Role of the RNA-directed DNA Methylation pathway in the regulation of maternal effects in Arabidopsis thaliana seed germination
AU  - Authier, Ailén
AU  - Cerdán, Pablo
AU  - Auge, Gabriela A.
DO  - 10.17912/micropub.biology.000504
UR  - http://beta.micropublication.org/journals/biology/micropub-biology-000504/
AB  - The ability to process environmental information and adjust the phenotype in a way to face daily, seasonal and annual changes (phenotypic plasticity) is critical for survival, growth and reproduction ​of living organisms (Liancourt et al. 2013)​. Seeds respond to environmental cues experienced by mother plants, which can influence germination responses to and synchronization of the new generation of plants with optimal growth conditions and seasons (Donohue et al. 2010; Auge et al. 2017). Seeds from mother plants that experienced cold before flowering or during seed development and maturation show reduced germination—i.e., dormancy is induced (Chen et al. 2014; Burghardt et al. 2016). Temperature effects on progeny germination are mediated by the RNA-directed DNA Methylation pathway (RdDM): cool temperatures experienced by mother plants after bolting induce methylation through RDR6 (RNA-dependent RNA POLYMERASE6) of an ATHPOGON1 transposon located in the promoter region of the ALLANTOINASE (ALN) gene, a negative regulator of dormancy, reducing its expression and inducing seed dormancy (Iwasaki et al. 2019). RdDM is a pathway unique to plants that has been associated with multiple regulatory processes, including transposon silencing, responses to stresses, and development (Erdmann and Picard 2020). As RdDM influences the expression of transgenerational plasticity, we evaluated its role in the integration of the maternal life cycle environmental information and the expression of early developmental traits (germination) in seeds.
PY  - 2021
JO  - microPublication Biology
ER  -