Published as part of Mezhzherin, S. V., Morozov-Leonov, S. Yu., Rostovska, O. V., Tereshchenko, V. O. & Zhalay, E. I., 2024, Cryptic Speciation And Characteristics Of The Transition Bias Following An Example Of The Cytb Gene In Palearctic Mammals, pp. 27-38 in Zoodiversity 58 (1) on page 34, DOI: 10.15407/zoo2024.01.27, http://zenodo.org/record/10831903

Fig. 8. Variation of transition (upper lines) and transversion (lower lines) frequencies accordingly to substitution frequencies level. Think lines are empirical data for each subfamily/family, thick ones — polynomial approximations of averaged data.