Figure 4
From: High codon adaptation in citrus tristeza virus to its citrus host
Correlations of the codon abundances of closteroviruses and their respective host species. (A) Beet yellows virus (BYV) versus Beta vulgaris (beet); (B) Carrot yellow leaf virus (CYLV) versus Daucus carrot (carrot); (C) Grapevine rootstock stem lesion associated virus (GRSLaV) versus Vitis vinifera (grapevine); (D) Grapevine leafroll-associated virus 2 (GRLaV-2) versus V. vinifera. The codon usage patterns of beet, carrot and grapevine were downloaded from the Codon Usage Database (http://www.kazusa.or.jp/codon/).