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. 2026 Sep 15;17:1961230. doi: 10.3389/fpls.2026.1961230

Figure 6.

Panel A displays a horizontal bar graph showing the functional distribution of natural AtAAAS gene variants, with intron variants being the most numerous. Panel B is a dot plot mapping the locations of different variant types along a gene locus on chromosome two, each dot representing a unique variant. Panel C presents a horizontal bar graph listing the most frequently observed AtAAAS missense variants, with I479V being the most common. Panel D features a scatter plot mapping the number of accessions carrying each missense variant against amino acid positions, highlighting carrier group sizes by color.

Natural variation in AtAAS across Arabidopsis accessions. (A) Variant type distribution. (B) Jitter plot of variant positions along the AtAAS genomic sequence. (C) Carrier counts for recurrent missense substitutions; I479V is the most frequent (786 accessions). (D) Jitter plot of missense variants mapped onto the 491-amino-acid AtAAS protein, showing uneven distribution with I479V as the predominant variant.