Evolutionary rate of salmonids
Studies of mutation frequencies over time have shown that species vary
in
their
evolutionary rates. Thus, the evolutionary rate of B. l.
tsinlingensis and
other
salmonids may be quite different from other fishes. The evolutionary
rate of salmonids was quite similar and much slower compared with other
outgroup species. However, the evolutionary rate of B. l.
tsinlingensis was the fastest of all previously published evolutionary
rates for salmonids (Figure 4D; Table S19-S20 ). These results
indicate shown that after Ss4R, all of the salmonids occupied a stable
environment and thus had a much slower evolutionary rate; however,B. l. tsinlingensis is still threatened and requires protection.