Adaptation and diversity along an altitudinal gradient in Ethiopian barley (Hordeum vulgare L.) landraces revealed by molecular analysis

Table 1 Summary statistics for the seasons, districts and altitude classes, and for the whole sample.

	S	n _a	n _o	n _e	He	Ho	R _S	Number of private alleles	Average frequency of private alleles	Number of private alleles (freq. ≥ 0.05)	Average frequency of private alleles (freq. ≥ 0.05)
Seasons
Belg	108	60	8.57	4.71	0.63	0.001	8.57	8	0.01	0	-
Meher	104	58	8.29	4.54	0.67	0.004	8.28	6	0.02	0	-
Districts
Ankober	72	58	8.29	4.86	0.66	0.006	8.22	9	0.03	2	0.07
Mojanawadera	64	53	7.57	4.67	0.63	0.002	7.57	4	0.03	1	0.05
Tarmaber	76	50	7.14	3.86	0.64	0.000	7.11	2	0.02	0	-
Altitude classes (m a.s.l.)
<2,300	46	39	5.57	3.11	0.65	0.000	5.57	2	0.04	1	0.07
2,300-2,800	54	50	7.14	4.45	0.66	0.000	7.10	3	0.02	0	-
>2,800	112	57	8.14	4.24	0.57	0.009	7.40	12	0.03	3	0.09
ALL	212	66	9.43	4.96	0.66	0.003	9.43	-	-	-	-

S, sample size; n_a, number of observed alleles; n_o, average number of observed alleles per locus; n_e, effective number of alleles per locus; He, unbiased expected heterozygosity; Ho, observed heterozygosity; R_S, allelic richness.

ISSN: 1471-2229