“…However, an increasing number of reports in the last decades makes use of collections of locally adapted natural variants, that is, ecotypes, to unravel the genetic variations underlying the diversity in the response to stress, namely, in the many Arabidopsis accessions available, an invaluable resource that has allowed the identification of novel players in plant stress tolerance (Assmann, 2013; Yolcu et al., 2020). Both quantitative trait locus analyses and genome‐wide association studies have uncovered great variability in the response to ABA‐mediated stresses, including drought (Bouchabke et al., 2008; Des Marais et al., 2012; Imai et al., 2015; Kalladan et al., 2017, 2019; McKhann et al., 2004), high salinity (Baxter et al., 2010; DeRose‐Wilson & Gaut, 2011; Galpaz & Reymond, 2010; Julkowska et al., 2016; Katori et al., 2010; Quesada et al., 2002), and freezing temperatures (Gery et al., 2011; McKhann et al., 2008). An early microarray analysis (Chen et al., 2005) had already shown that most of the genes differentially expressed among Arabidopsis ecotypes were related to transcription and stress response, and indeed plants undergo significant transcriptional changes upon stress perception, with ABA specifically affecting approximately 10% of the Arabidopsis genome (Kreps et al., 2002; Song et al., 2016).…”