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SUMMARY Slow vs. fast alleles at an esterase locus show a sex-linked pattern of inheritance in colonies of the termite _Incisitermes schwarzi_. As might be expected where a gene has only

recently been brought into sex-linkage by means of a translocation between an autosome and a sex-chromosome, males as well as females can be heterozygous; males are therefore “holozygous”,

not hemizygous, for this gene. The rate of exchange of this gene between X and Y chromosomes is 2/266 or less. In the founding reproductives (male or female), X chromosomes may have either

the fast or the slow allele; in males, only Y chromosomes carrying the fast allele have been found. This linkage disequilibrium may be due to a founder effect, to “hitch-hiking” of the gene

with the translocation, or to a sex difference in the fitness of gene combinations at or near this locus. SIMILAR CONTENT BEING VIEWED BY OTHERS HOW DID MENDEL ARRIVE AT HIS DISCOVERIES?

Article 11 July 2022 CO-INHERITANCE OF RECOMBINED CHROMATIDS MAINTAINS HETEROZYGOSITY IN A PARTHENOGENETIC ANT Article Open access 16 July 2024 X-LINKED COMPETITION — IMPLICATIONS FOR HUMAN

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AFFILIATIONS * Department of Biology, Laboratory for Quantitative Biology, University of Miami, Coral Gables, Florida, 33124, USA Peter Luykx Authors * Peter Luykx View author publications

You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Luykx, P. A sex-linked esterase locus and

translocation heterozygosity in a termite. _Heredity_ 46, 315–320 (1981). https://doi.org/10.1038/hdy.1981.43 Download citation * Received: 15 October 1980 * Issue Date: 01 June 1981 * DOI:

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