Identification and characterisation of microsatellite DNA markers in order to recognise the WSSV susceptible populations of marine giant black tiger shrimp, Penaeus monodon

Table 1 Microsatellite markers associated to disease susceptibility in Penaeus monodon : their frequencies and statistical significances

Location	WSSV Resistant ( n = 195)			WSSV Susceptible ( n = 255)			*Chi* -square Value	p value	Significance
Twenty various WSSV affected ponds	Allele(bp)	# of obs	Frequency^a	Allele(bp)	# of obs	Frequency^a
	442	74	0.39	442	149	0.43	18.139	<0.0001***	HS
	236	40	0.21	236	93	0.27	13.281	<0.0001***	HS
	215	73	0.39	215	102	0.30	0.260	0.626	NS
Total	3	187	-	3	344	-	23.480	<0.0001***	HS

Chi square value was calculated and yates’ correction was applied, while the probability was calculated by using fischer's exact test.
n: number of samples for each group.
NS: not significant; ***(p ≤ 0.001): HS/highly significant.
^aFrequency of allele = number of observation at the given allele/total number of observation of all alleles in a particular population (either in WSSV resistant or WSSV susceptible population).

ISSN: 1297-9716