Is Speciation Accompanied by Rapid Evolution? Insights from Comparing Reproductive and Nonreproductive Transcriptomes in Drosophila

Table 3

Comparison of the proportion of genes showing evidence of positive selection under the site model, branch-site model, and branch model between slow (𝑛=963), clock-like (𝑛=2996), and accelerated (𝑛=884) categories. 𝑃 values for the different tests were corrected using a Bonferroni correction prior to the comparisons. mel: D. melanogaster, sim: D. simulans, sec: D. sechellia, simsecmel: branch leading to the D. melanogaster clade, yak: D. yakuba, ere: D. erecta, and yakere: branch leading to the D. yakuba clade.

Model	Slow	Clock-like	Accelerated
Site model
M7/M8	6	40	9
Branch-site model
mel	0	8	0
sim	5	51	39
sec	10	29	9
simsecmel	3	6	3
yakere	3	4	0
Branch model
mel	0	6	6
sim	0	3	24
sec	1	13	3
simsecmel	1	59	80
yak	20	20	0
ere	36	26	0
yakere	68	83	0