A chromosomal reciprocal translocation (1q+; 14q-) in a boar siring reduced litter sizes.
In our initial cytogenetic surveillance of boars one of 15 was found to be hypoprolific. It averaged 7.1 piglets per litter in over 51 monospermic matings with sows which, with other boars averaged 10.8 piglets per litter. Cytogenetic evaluations revealed only the hypoprolific boar to have an abnormal karyotype, namely {38XY, t(1;14) (q2.12, q2.2)}. This represents a new type of 1;14 reciprocal translocation, and also the first report of a reciprocal translocation for swine in the United States.
Zhang
T Q
TQ
Department of Clinical and Population Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN 55108, USA.
Buoen
L C
LC
Weber
A F
AF
Christianson
B
B
Morrison
R
R
Marsh
W
W
Ruth
G R
GR