Table 1.

Diagnostic RFLPs for different M1 clusters

Cluster	Diagnostic RFLP
M1	-12402 Mnl I (1) +12950 Aci I, +14110 Ear I
M1a	+12345 RsaI (2)
M1b	-15883 HaeIII/+15882 Ava II (2)
M1c	-13110 Dde I (3)
M1a2	-9052 Hae II/-9053 Hha I
M1b1	-15172 Hae III
M1c1	+10893 Taq I

¹ = [18]

² = [21, 22]

³ = The primers used in the amplification were: L13069 = 5' AggCCCCACCCCAgTCTCAg 3' and the modify H13112* = 5' gCTAgggggTggAAgCggATgACTA 3'