Publications by authors named "Kristina Civanova Krizova"

Introduction: Parasite-mediated selection is considered one of the potential mechanisms contributing to the coexistence of asexual-sexual complexes. Gibel carp (), an invasive fish species in Europe, often forms populations composed of gynogenetic and sexual specimens.

Methods: The experimental infection was induced in gynogenetic and sexual gibel carp using eye-fluke (Trematoda), and the transcriptome profile of the spleen as a major immune organ in fish was analyzed to reveal the differentially expressed immunity-associated genes related to infection differing between gynogenetic and sexual gibel carp.

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Gibel carp (Carassius gibelio) is a cyprinid fish that originated in eastern Eurasia and is considered as invasive in European freshwater ecosystems. The populations of gibel carp in Europe are mostly composed of asexually reproducing triploid females (i.e.

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Hybrid generations usually face either a heterosis advantage or a breakdown, that can be expressed by the level of parasite infection in hybrid hosts. Hybrids are less infected by parasites than parental species (especially F1 generations) or more infected than parental species (especially post-F1 generations). We performed the experiment with blood-feeding gill parasite (Monogenea) infecting leuciscid species, and , their F1 generation and two backcross generations.

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Article Synopsis
  • The study analyzes ascarids infecting Sumatran orangutans, revealing little genetic or morphological distinction between known taxa affecting various species, despite some observed differences.
  • Fresh fecal samples from 24 orangutans were collected in 2009, leading to the discovery of only five adult worms in two females, marking the first confirmed finding of adult ascarids in over 130 years at a natural orangutan site.
  • The research establishes new morphometric parameters and genetic markers for identifying ascarids, enhancing future studies on parasites in great apes, and provides a detailed comparison with previously studied orangutan parasites.
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The ornate dog tick (Dermacentor reticulatus) shows a recently expanding geographic distribution. Knowledge on its intraspecific variability, population structure, rate of genetic diversity and divergence, including its evolution and geographic distribution, is crucial to understand its dispersal capacity. All such information would help to evaluate the potential risk of future spread of associated pathogens of medical and veterinary concern.

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