Figure 8 Intrinsic and sperm-enriched genes are excluded from the X chromosome

 

The number of germline-enriched genes expected to be on each chromosome, given the number of genes per chromosome on the array, was determined for oocyte-enriched, sperm-enriched and germline-intrinsic genes. The ratio of observed to expected genes for each class of genes was plotted for each chromosome.

 

 

The number of genes in each category for each chromosome is as follows:

 

chrom.
total genes
genes on array
fraction of chrom
fraction of array

sperm enriched

oocyte enriched

germ line intrinsic

observed
expected
obs/exp
observed
expected
obs/exp
observed
expected
obs/exp
I
2,857
1,582
0.54
0.132
146
86
1.70
56
34
1.64
105
80
1.31
II
3,298
2,113
0.63
0.176
125
114
1.09
49
45
1.08
103
107
0.96
III
2,531
1,435
0.56
0.120
85
78
1.09
40
31
1.30
101
73
1.39
IV
3,130
1,847
0,58
0.154
180
100
1.80
35
40
0.88
108
94
1.15
V
4,873
3,134
0.63
0.261
107
170
0.63
42
67
0.62
187
159
1.18
X
2,664
1,878
0.69
0.157
6
102
0.06
36
40
0.89
4
95
0.04
Total
19,353
11,989
1.000
649
649
258
258
608
608


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