Allozyme and mitochondrial DNA analysis of a hybrid zone between white-tailed deer and mule deer (Odocoileus) in west texas
0106 biological sciences
Deer
Extrachromosomal Inheritance
DNA Restriction Enzymes
DNA, Mitochondrial
Texas
01 natural sciences
Isoenzymes
Gene Frequency
Sequence Homology, Nucleic Acid
Animals
Hybridization, Genetic
Alleles
DOI:
10.1007/bf00554423
Publication Date:
2004-11-20T11:42:45Z
AUTHORS (4)
ABSTRACT
Thirty allozyme loci and 35 mitochondrial DNA (mtDNA) restriction sites were examined in 24 white-tailed deer and 46 mule deer from a hybrid zone in West Texas. A common mtDNA genotype is shared by all of the mule deer with 67% of the white-tailed deer. At the albumin locus, 13% of the white-tailed deer and 24% of the mule deer are heterozygous, sharing alleles that are otherwise species-specific in allopatric populations; 7% of the mule deer are homozygous for the allele that is characteristic of allopatric white-tailed deer. Gene flow appears to have been bidirectional, with greater genetic introgression into mule deer. The mtDNA data suggest that matings between white-tailed and mule deer have occurred in the past. Despite evidence of genetic introgression, analysis of multilocus genotypes indicates that none of the deer examined is an F1 hybrid. Production of such hybrids appears to be generally uncommon in North American deer; management plans that assume otherwise should be reconsidered.
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