Fig. 3.

The number of CDR3 spectratypes with a skewed distribution is increased in old Labrador retrievers. (A) Matrix showing the distribution of normal (white) and skewed (dark grey) spectratypes in young and old Labrador retrievers. (B) Dot plot showing the number of skewed spectratypes identified in young and old Labrador retrievers. Each dog is represented by a circle within their age group. A trend line (in black) is positioned at the median of each age group. The P value was calculated using a Mann Whitney U test comparing the two groups.