Fig. 4

Comparative analysis of SSRs in plastid genomes of Hippophae species. (A) Numbers of SSRs categorized by motif length. (B) Distribution of SSRs across plastid genome regions: LSC, SSC, and IR. (C) Distribution of SSRs among genomic feature categories: IGS, intron, and coding sequence (CDS). LSC, large single-copy region; SSC, small single-copy region; IR, inverted repeat; IGS, intergenic spacer.