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. 2022 Sep 8;23:643. doi: 10.1186/s12864-022-08868-z

Fig. 2.

Fig. 2

Relative synonymous codon usage (RSCU) values of all merged protein-coding genes for 14 Ferula plastomes. Color key: red values indicate higher RSCU values, and blue values indicate lower RSCU values. M = initiation codon, * = termination codon, I = l-isoleucine codon, and V = Valine codon