Figure 1From: Australian and Pacific contributions to the genetic diversity of Norfolk Island feral chickensNeighbour-joining tree showing the relationships of mitochondrial DNA (488 bp) from worldwide, Norfolk Island, and mainland Australia chickens. This represents 425 haplotypes from 3063 sequences (Additional file 3: Table S3A). Haplotypes are classified into ten haplogroups (A-I, K). Symbols represent the following: (*) common haplotypes among Norfolk Island ferals and Australian domestic chickens; (●) haplotypes present only in Norfolk Island ferals; and (♦) haplotypes present only in Australian domestic chickens. Major haplogroups are represented by different colours as described in the legend.Back to article page