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mtDNA Types

Data from
  • Pedersen N, H Liu, G Theilen & B Sacks. 2012. The effects of dog breed development on genetic diversity and the relative influence of performance and conformation breeding. J Anim Breed Genet 2012: 1-13.
Mitochondrial DNA types (mtDNA) types by breed: Brittany (Brit); English Setter (show); English Setter (field); German Shorthaired Pointer (GSP); German Wirehaired Pointer (GWP); Red Setter (RS); Italian Greyhound (IGH); Standard Poodle (SP). Haplotype equivalents of those listed here are reported in Pedersen et al (2012) and listed below (*).



Frequencies of mitochondrial DNA types by breed. The top graph is on a linear y axis; below the y axis is logged to visualize the types at very low frequency.

The Brittany and Red Setter have the broadest representation of mtDNA types (7 and 6, respectively). Breeds with only 4 types represented are English Setter (both types), German Wirehaired Pointer, Italian Greyhound, and Standard Poodle, and in the latter two more than 75% of dogs had a single type (J in Italian Greyhounds and A in Standard Poodles).


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The Red Setter and Brittany have the greatest diversity in mtDNA types. The Italian Greyhound and Standard Poodle are both very low.
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Breed frequencies of mitochondrial DNA types by type designation (letters; haplotypes listed at the bottom *); above on linear y axis, below on log y axis.

Seven types were found in only a single breed (F, L, M, O, P, Q, and R), and A, B, and C were most widely distributed.
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* Equivalent haplotypes for mtDNA types:

A = B1, B2, B3, B5, B6, B13
B = A18, A20
C = A11, A13
D = A24, A25
F = D5
H = A1, A2
J = A16, A17, A33
K = C3
L = "1 nt different C3"
M = "1 not different A11, A13"
O = A3, A5, A7, A8, A9
P = "1 not different A11, A13"
Q = B11
R = C1, C2

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