Table 5.

Analysis of population genetic structure using genotypic data of S. meliloti.

Regions/Groups	Number of populations	No. of genotypes	Genotypic diversity	Wright's FST for haploids	Index of association (IA)	Sample size
Rich Errachidia	4	32	0.994**	0.267**	1.377**	34
Ziz	4	29	0.997**	0.203**	1.578**	30
Jerf Erfoud	4	34	0.998*	0.194**	0.854**	35
Over all (across populations)	12	95**	0.998**	0.250**	0.832**	99

*Significance at P < 0.05

**Significance at P < 0.01