The Molecular Evolution of Animal Reproductive Tract Proteins: What Have We Learned from Mating-System Comparisons?

Table 1

Associations between mating system variation and rates of molecular evolution.

Study	Taxon	No. genes studied	Method^1	No. genes showing association	No. genes showing positive selection^2
Dorus et al. 2004 [56]	Primates	1	C	1	1
Herlyn and Zischler 2007 [64]	Primates	1	C	1	1
Hurle et al. 2007 [68]	Primates	6	C	0	5
Ramm et al. 2008 [1]	Rodents	7	D	1	5
	Primates	2	D	1	2
Martin-Coello et al. 2009 [28]	Rodents	2	C	1	1
Finn and Civetta 2010 [63]	Primates	13	D	2	12
Total (Unique genes)^3	—	29	—	6	24

¹D = discrete comparative method; C = continuous comparative method.
²Inference of positive selection assuming no variation between lineages.
³Two genes (SEMG1 and SEMG2) have been examined in multiple studies—SEMG1 twice [1, 68] and SEMG2 three times [1, 56, 68]. The “total (unique genes)” row reflects this replication and is therefore not a sum of the preceding rows.