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Mosaic hybrid zones arise when ecologically differentiated taxa hybridize across a network of habitat patches. Frequent interbreeding across a small-scale patchwork can erode species differences that might have been preserved in a clinal hybrid zone. In particular, the rapid breakdown of neutral divergence sets an upper limit to the time for which(More)
This is an open access article distributed under the terms of the CC-BY 4.0 License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited. Competing interests: The authors have declared that no competing interests exist. Funding: The authors have no funding or support to report.(More)
Observations on the means, variances, and covariances of quantitative traits across hybrid zones can give information similar to that from Mendelian markers. In addition, they can identify particular traits through which the cline is maintained. We describe a survey of six traits across the hybrid zone between Bombina bombina and Bombina variegata(More)
This paper demonstrates the effect of habitat heterogeneity and a habitat preference on the genetic structure of a hybrid zone between the toads Bombina bombina and B. variegata (Anura: Discoglossidae); 1613 toads from 85 sites across a transect near Pešćenica, Croatia, were scored for five unlinked diagnostic allozyme markers. These were found to be(More)
H ow has language developed in humans and what genetic changes underlie our unique cognitive abilities? Accounts of positive selection that lead to such abilities in humans fascinate us because of the insight they provide into our own evolution, and into the many genetic differences that distinguish us from other apes. The genes that became fi xed in our(More)
One of the innate defences against superficial infections by Candida species appears to be the ability of an individual to secrete the water-soluble form of his ABO blood group antigens into body fluids. There was a significantly higher number of non-secretors (48.9%) among 174 patients with either oral or vaginal candida infections compared with the(More)
Today, the Public Library of Science publishes a collection of essays, perspectives, and reviews about how genomics, with all its associated tools and techniques, can provide insights into our understanding of emerging infectious disease (http://ploscollections. org/emerginginfectiousdisease/) [1–13]. This collection, focused on human disease, is(More)
In this study we tested the hypothesis that the increased susceptibility of non-secretors of blood group antigens to recurrent urinary tract infections might be due, in part, to lower levels of IgA reported for non-secretor Caucasian women. Total serum IgA and IgG levels of 200 women in a retrospective study group monitored by the local pyelonephritis unit(More)