Table 2.

Mean Tajima’s D values

LD block	Tajima’s D all strains	Tajima’s D without Rh08 strains	Tajima’s D without introgressed clade	Tajima’s D of only introgressed clade
LD block 1	2.40	1.00	1.13	−0.81
LD block 2	1.90	0.66	0.51	0.08
LD block 3	0.45	0.42	0.47	0.54
LD block 4	−0.15	−0.32	−0.001	0.24
Symbiosis genes	2.58	2.49	2.75	−0.62