Molecular Vision: Kannabiran, Mol Vis 2012; 18:1165-1174. Table 1

Table 1. Details of ARRP families screened

Family number	No. of homozygous regions of >10 consecutive SNPs	RP genes tested for mutations	Size of corresponding homozygous region (Mb)	HBD confirmed by microsatellite markers
1	8	CRB1	21.2	Y
		AIPL1, GUCY2D	4.3	N
2	11	-	-	-
3	11	RP1	8.8 Mb	Y
4	12	-	-	-
5	6	NR2E3	9.6	Y
6	7	-	-	-
7	5	-	-	-
8	13	RGR	40.9	Y
9	15	CRB1	15.3	Y
10	7	-	-	-
11	18	-	-	-
12	10	-	-	-
13	7	RDH12	44.1	Y
14	11	RGR, PCDH21	23.6	Y
		FAM161A	8.2	N
15	12	-	-	-
16	6	-	-	-
17	8	-	-	-
18	15	FAM161A	5.7	N
19	5	RBP3	26	Y
20	6	RDH12	23.3	Y
		RD3	18.6	N
21	13	NRL	9.5	N
22	8	NR2E3, RLBP1	28.8	Y
		FAM161A	15.2	Y
23	6	RDH5	7.5	Y

Shown above are the 23 families screened for homozygosity on the SNP 6.0 K array, with mutations not identified. The numbers of homozygous intervals in each family, consisting of more than 10 consecutive SNPs each, are shown in column 2. Known RP/retinal dystrophy genes localizing to one or more homozygous regions of 13 families were screened for mutations (shown in column 3). Genes mapping to a common region are shown in the same row. The size of the homozygous segment corresponding to each of the genes is shown in column 4. The last column shows whether the homozygosity at the relevant locus was confirmed by testing affected offspring and at least one unaffected sibling/parent by using microsatellite markers. HBD- homozygosity by descent.