“…At the cellular level, root cortex cell number (Ron et al, 2013), the cellular basis of carpel size (Frary et al, 2000), and epidermal cell area and number (Tisné et al, 2008) have been analyzed. The genetic basis of cellular morphology ultimately affects organ morphology, and quantitative genetic bases for fruit shape (Paran and van der Knaap, 2007;Monforte et al, 2014), root morphology (Zhu et al, 2005;Clark et al, 2011;Topp et al, 2013;Zurek et al, 2015), shoot apical meristem shape (Leiboff et al, 2015;Thompson et al, 2015), leaf shape (Langlade et al, 2005;Ku et al, 2010;Tian et al, 2011;Chitwood et al, 2014a,b;Zhang et al, 2014;Truong et al, 2015), and tree branching (Kenis and Keulemans, 2007;Segura et al, 2009) have been described.…”