Fig. 3

An example of the electrophoresis of PCR products amplified from rice aDNA samples from the west trench at the Mojiaoshan site. a Amplicons obtained by using the specific primer targeting rps16 intron 1. b Amplicons obtained by using the specific primer targeting Orf100 F1 and R1. M1 = 100 bp DNA ladder (Takara, Japan), C1 = Oryza sativa Japonica ‘Ta-pei-mang’, C2 = Oryza sativa Indica “P.T.B.10”, 61–118 and 18–50 = Archaic rice grains, M2 = 20 bp DNA ladder (Takara, Japan)