Fig. 3

Schematic of incomplete lineage sorting in the GGERV10B_311 locus. The small deletion occurred before the divergence of the Araucana and other breeds and was still polymorphic at the time of speciation. Subsequently, the Araucana had maintained deletion polymorphism. After the divergence of the Korean domestic chicken and Leghorn, Korean domestic chicken-specific GGERV10B_311 element insertion event occurred and maintained insertional polymorphism. However, the deletion allele was fixed in the Leghorn species. The Gray box, red arrow, and red line indicate small deletion region, TSD, and deletion point, respectively