The heparinized blood samples were received courtesy of Dr. Dusˇan
Kra´l and Martina Gregorovicˇova´, the private owners of the
animals. Additional tissue samples (muscle) were provided from
one preserved male (National Museum in Prague, specimen
No. NMP6V-70769) and one preserved female (from the private
owner Rene´ Urvalsky´). The procedures were carried out under the
supervision and with the approval of the Ethics Committee of the
Faculty of Science, Charles University in Prague followed by the
Committee for Animal Welfare of the Ministry of Agriculture of
the Czech Republic.