Giardia duodenalis captured the attention of Leeuwenhoek in 1681 while he was examining
his own diarrheal stool, but, ironically, it did not really gain attention as a human pathogen …

Discussions that are aimed at understanding the maintenance of sexual reproduction are in
a bit of a quagmire owing to the many competing theories that have been proposed. Also …

Loss of sexual reproduction is considered an evolutionary dead end for metazoans, but
bdelloid rotifers challenge this view as they appear to have persisted asexually for millions …

Giardia duodenalis, originally regarded as a commensal organism, is the etiologic agent of
giardiasis, a gastrointestinal disease of humans and animals. Giardiasis causes major …

The consequences of variable rates of clonal reproduction on the population genetics of
neutral markers are explored in diploid organisms within a subdivided population (island …

In theory, parthenogenetic lineages have low evolutionary potential because they inexorably
accumulate deleterious mutations and do not generate much genotypic diversity. As a result …

Cryptococcus neoformans is a human-pathogenic fungus that has evolved into three distinct
varieties that infect most prominently the central nervous system. A sexual cycle involving …

Ancient asexuals–organisms that have lived without sex for millions of years–offer unique
opportunities for discriminating among the various theories of the maintenance of sex. The …

Theory predicts that linkage between genetic loci reduces the efficiency of purifying
selection. Because of the permanent linkage of all heritable genetic material, asexual …

Giardia lamblia (syn. Giardia intestinalis, Giardia duodenalis) is an enteric protozoan
parasite with two nuclei, and it might be one of the earliest branching eukaryotes [1] …