Fig 1.
Map of Sweden with the geographic origin of the five breeds indicated.
Table 1.
Number of alleles (NA), polymorphism information content (PIC), observed (HO) and expected (HE) heterozygosity with standard deviation of the mean values within parenthesis and Hardy Weinberg (HW) tests.
Table 2.
Mean number of alleles (MNA) per locus, observed (HO) and expected (HE) heterozygosity, Hardy-Weinberg test (HW) and mean molecular kinship within breed.
Table 3.
Fixation indices (FIT, FST and FIS) calculated according to Weir and Cockerham [17] across five local Swedish chicken breeds.
Fig 2.
Unrooted neighbor-joining consensus tree constructed using Nei’s genetic distance of five local Swedish chicken breeds.
The numbers on the branches show the frequency of occurrences of the associated branch from 1000 bootstrapping.
Fig 3.
Neighbor-joining tree of individual chickens.
Bootstrap values are shown partially. Each breed is marked with a specific color.
Fig 4.
STRUCTURE Clustering of five local Swedish chicken breeds.
Gotla = Gotlandshöna; Hedem = Hedemorahöna; Öland = Öländsk dvärghöna; Skånsk = Skånsk blommehöna; Svart = Svarthöna. Numbers in the parenthesis indicate the average similarity index between individuals assigned into the same cluster
Table 4.
Loss or gain (%) of the total genetic diversity of local Swedish chickens when one of the breed was removed from the population based on the method developed by Caballero and Toro [25].