Table 1

X-ray analyses of the axial skeleton of 18 adult mice without an external phenotype from Tg(msd/Dll1)Ieg lines.

number of vertebrae
vertebral fusions
reduced vertebrae
cv
th
lu
sa
ta
cv
th
lu
sa
ta
cv
th
lu
sa
ta

7
13
6
4
>25
-
-
5–6
-
-
-
-
-
-
2–4
7
12
7
4
>25
-
-
3–6
4+
+1–4
-
11–12
-
-
-
7
13
6
4
>25
-
-
-
-
-
-
-
-
-
2–3
7
13
6
4
>25
-
-
-
-
-
-
-
-
-
-
7
12
7
4
>25
-
-
-
-
-
-
-
-
-
-
7
13
6
4
>25
-
13+
+1; 5–6
-
-
-
-
-
-
-
7
13
6
4
>25
-
-
-
-
-
-
-
-
-
-
7
12
7
5
>25
-
-
1–2; 4–5
-
-
-
11–12
-
-
-
7
13
6
4
>25
-
-
-
-
-
-
-
-
-
-
7
14
5
4
>25
-
-
-
-
-
-
-
-
-
-
7
13
6
4
>25
-
-
3–4
-
-
-
-
-
-
2–4
7
12
7
4
>25
-
-
4–7
-
-
-
10–12
-
-
-
7
13
6
4
>25
-
-
2–4
-
-
-
-
-
-
-
7
13
6
4
>25
-
-
-
4+
+1
-
-
-
-
-
7
13
6
4
>25
-
-
-
-
-
-
-
-
-
-
7
13
6
4
>25
-
-
-
-
-
-
11–14
-
-
-
7
13
6
4
>25
-
-
-
-
-
-
-
-
-
-
7
12
7
4
>25

12+
+1
4+
+1
-
-
-
-
-

7
13
6
4
>25
-
-
-
-
-
-
-
-
-
-

cv, cervical; lu, lumbar; ta, tail; th, thoracic; sa, sacral

Bold values differ from the wild-type phenotype presented in the bottom row. Numbers with a '+' indicate fusions of vertebral bodies to the next or previous vertebra. "Reduced vertebra" refers to a shortened R/C length of vertebrae.

Teppner et al. BMC Developmental Biology 2007 7:68   doi:10.1186/1471-213X-7-68