Table 1

Linkage Statistics for Striatal Volume and Neuron Number

Trait
Marker
Chr
LRS†
%Var
P
Add**
Dom

Striatal Volume
D1Mit15
1
6.3
11
0.04361
1.55
1.19
(mm3)
D5Mit338
5
6.4
11
0.03984
-1.00
-2.13

D6Mit201
6
7.7
14
0.02161
0.90
2.88

D10Mit106
10
11.4
23
0.00342
2.54
1.09
*
D10Mit186
10
17.5
35
0.00016
2.34
1.46

D10Mit209
10
14.8
30
0.00061
2.15
1.26

D11Mit263
11
6.6
12
0.03675
1.39
1.67

D13Mit64
13
7.5
14
0.02330
0.29
2.72

Striatal Volume
D10Mit106
10
6.8
12
0.03316
0.71
1.19
Residual
D13Mit108
13
6.7
12
0.03496
0.30
1.45

Striatal Neuron
D1Mit65
1
9.6
19
0.00809
-57,000
-229,000
Number
D10Mit186
10
8.3
16
0.01593
96,000
181,000

D10Mit209
10
6.8
13
0.03296
86,000
171,000

D15Mit220
15
8.7
17
0.01275
128,000
177,000

D19Mit123
19
11.9
24
0.00263
198,000
-126,000

Striatal Neuron
D1Mit65
1
7.2
13
0.02697
-33,000
-189,000
Number Residual
D13Mit108
13
6.5
11
0.03925
-46,000
173,000

D15Mit220
15
7.4
14
0.02533
110,000
147,000

D16Mit130
16
6.8
12
0.03270
-99,000
206,000
*
D19Mit123
19
15.0
30
0.00055
201,000
-94,000

Brain Volume
D10Mit186
10
12.3
25
0.00217
28.09
8.82
(mm3)
D10Mit209
10
10.0
20
0.00672
25.12
5.86

D10Mit233
10
10.1
22
0.00634
31.30
8.62

D18Mit20
18
14.8
30
0.00061
36.76
-0.34

D18Mit120
18
12.2
25
0.00219
28.80
-16.27

Brain-Striatal
D10Mit186
10
11.4
23
0.00328
25.8
6.9
Volume
D10Mit209
10
9.3
18
0.00965
23.0
4.1

D10Mit233
10
9.3
20
0.00935
28.5
6.5

¶D18Mit20
18
15.1
31
0.00053
34.7
-1.7

D18Mit120
18
12.8
26
0.00168
27.2
-16.4

** Alleles inherited from BXD5 that increase a value are defined as positive additive effects. † LRS values can be converted to LOD scores by dividing by 4.6. Previously described QTL for brain weight [56]. Column headings:Trait, the phenotype used in linkage analysis; Marker, the symbol of the microsatellite loci used to genotype mice; Chr, the chromosome on which the marker is located; LRS is the likelihood ratio statistic (4.6 x the LOD score); %Var is the percentage of the total phenotypic variance apparently accounted for by differences in genotype in the an interval defined by the marker; P, the point-wise probability that the linkage is a false positive. Add and Dom are estimates of the additive and dominance effects of genetic variation. Units are the same as those of the traits (volume in mm3 or numbers of cells). The two bold loci marked with asterisks achieve genome-wide significance in this sample population.

Rosen and Williams BMC Neuroscience 2001 2:5   doi:10.1186/1471-2202-2-5