Linkage relationships among 12 enzyme loci in cattle fever ticks of the genus Boophilus.

Electrophoretic variation at 12 enzyme loci in cattle fever ticks were examined for mode of inheritance and linkage relationships. All variants exhibited codominant Mendelian inheritance, and PGI and GOT were sex-linked. Four pairs of enzyme loci were linked (PGI and GOT, ACON-A and alpha GPD, MDH-1 and LDH, and EST-3 and EST-4). Four additional enzyme loci (ACON-C, MDH-2, PEP, and PP) did not show linkage to any other locus tested, giving eight presumptive linkage groups that have enzyme markers in the genus Boophilus.