“…Genomic bioinformatic analyses have revealed that there are 81 SAURs (including two pseudogenes) in Arabidopsis (Hagen and Guilfoyle, 2002), 58 SAURs (including two pseudogenes) in rice (Jain et al, 2006), 18 SAURs in moss (Rensing et al, 2008), 71 SAURs in sorghum (Wang et al, 2010), 134 SAURs in potato (Wu et al, 2012), 99 SAURs in tomato (Wu et al, 2012), and 79 SAURs in maize (Chen et al, 2014). Typically, SAUR genes are not randomly distributed in the genome, as many of them are found in tandem arrays of extremely highly related genes in soybean (McClure et al, 1989), Arabidopsis (Hagen and Guilfoyle, 2002), rice (Jain et al, 2006), tomato (Wu et al, 2012), and maize (Chen et al, 2014). Tandem and segmental duplication events likely contributed to the expansion of the SAUR gene family (Wu et al, 2012; Chen et al, 2014).…”