Table 3.

Frequencies of each allelic fragment pattern of PvMSP3β gene in 55 isolates of Plasmodium vivax from Southern Thailand as identified by PCR/RFLP after digested with PstI restriction enzyme

Genotype (kb)	Allele type	PstI restriction fragment (bp)	No. of samples of each Province				Total No. of sample	Frequency (%)
			Chumphon	Phang Nga	Ranong	Surat Thani
A (~1.7–2.2)	A1	900+800+350	4	0	5	0	9	16.36
	A2	1,000+850	2	0	3	0	5	9.09
	A3	1,200+650	4	0	1	1	6	10.91
	A4	700+600+550	1	0	2	0	3	5.45
	A5	900+800	0	0	1	0	1	1.82
	A6	1,200+980	0	1	0	0	1	1.82
	A7	900+400+300+250	0	0	1	0	1	1.82
	A8	900+700+400	0	0	1	0	1	1.82
	A9*	900+800+400+300+250	0	0	4	0	4	7.27
	A10*	1,500+900+800+600+400+350+250	0	0	1	0	1	1.82
	A11*	900+850+350+150	0	0	3	0	3	5.45
	A12*	900+600+400+300+250	1	0	1	0	2	3.64
	A13*	1,200+600+500+380+200	0	1	0	0	1	1.82
	A14*	1,200+900+800+600+300	0	1	1	0	2	3.64
B (~1.4–1.5)	B1	1,500	2	0	4	0	6	10.91
	B2	1,200+300	0	0	1	0	1	1.82
	B3	900+400+200	0	0	1	0	1	1.82
	B4	600+400+300+200	0	0	1	0	1	1.82
	B5	900+600+400+250	0	0	3	0	3	5.45
	B6*	900+700+400	3	0	0	0	3	5.45
Total			17	3	34	1	55	100

^*Mixed genotype.