Multiplex PCR amplification of seven amplicons.
A 2% agarose gel with representative PCR multiplex products (1–4) and a molecular weight marker (MW: PCR Marker Promega, Madison, WI, USA). Six bands are observed as 428 and 437bp (KEL*3/KEL*4 and KEL*6/KEL*7) bands cannot be differentiated in 2% agarose gels.