Jan Kotusz

ORCID: 0000-0001-6229-7610
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About
Contact & Profiles
Research Areas
  • Fish Biology and Ecology Studies
  • Genetic diversity and population structure
  • Fish Ecology and Management Studies
  • Parasite Biology and Host Interactions
  • Evolution and Genetic Dynamics
  • Chromosomal and Genetic Variations
  • Ecology and biodiversity studies
  • Aquatic Invertebrate Ecology and Behavior
  • Integrated Water Resources Management
  • Botany and Plant Ecology Studies
  • Environmental and Biological Research in Conflict Zones
  • Identification and Quantification in Food
  • Helminth infection and control
  • Livestock and Poultry Management
  • Physiological and biochemical adaptations
  • Language and Culture
  • Geology and Environmental Impact Studies
  • Botanical Studies and Applications
  • Marine and environmental studies
  • Aquaculture Nutrition and Growth
  • Aquatic Ecosystems and Biodiversity
  • Ichthyology and Marine Biology
  • Isotope Analysis in Ecology
  • Leech Biology and Applications
  • Genetic Mapping and Diversity in Plants and Animals

Wrocław Zoo
1994-2025

University of Wrocław
2014-2025

Wroclaw University of Environmental and Life Sciences
2008-2020

American Museum of Natural History
2008-2012

Czech Academy of Sciences, Institute of Animal Physiology and Genetics
2007

Université Claude Bernard Lyon 1
2007

Charles University
2007

For the last 800 years, 35 alien fish species have been introduced, mainly intentionally, in Polish inland waters. The paper reviews present state of fauna Poland, with special attention paid to those considered be invasive. Till now 26 reported as naturalized, acclimatized or casual and it means that 34% are non-indigenous species. majority came from North America, Eastern Asia Siberia different regions Europe. More than 65 % all introductions took place 60 years. After World War II rapid...

10.25225/fozo.v59.i1.a1.2010 article EN Folia Zoologica 2010-03-01

1. As a first approximation, whole-body metabolic rate can be considered as the sum of rates constituent cells. Yet, among several current explanations scaling, only two explicitly invoke cell architecture organisms: (1) Metabolic Theory Ecology, which predicts size invariance metabolically active cells, such erythrocytes and (2) metabolism hypothesis postulating partial dependence scaling on (CS), is mediated by nucleus/genome variation. 2. Here, we tested comparing standard (SMR),...

10.1111/j.1365-2435.2011.01870.x article EN Functional Ecology 2011-05-26

Hybrid sterility is a hallmark of speciation, but the underlying molecular mechanisms remain poorly understood. Here, we report that speciation may regularly proceed through stage at which gene flow completely interrupted, hybrid occurs only in male hybrids whereas female reproduce asexually. We analyzed gametogenic pathways between fish species Cobitis elongatoides and C. taenia, revealed were sterile owing to extensive asynapsis crossover reduction among heterospecific chromosomal pairs...

10.1534/genetics.119.302988 article EN Genetics 2020-06-10

Given the hybrid genomic constitutions and increased ploidy of many asexual animals, identification processes governing origin maintenance clonal diversity provides useful information about evolutionary consequences interspecific hybridization, asexuality polyploidy. In order to understand driving observed biotypes clones in Cobitis taenia complex, we performed fine-scale genetic analysis Central European zone between two sexual species using microsatellite genotyping mtDNA sequencing. We...

10.1371/journal.pone.0045384 article EN cc-by PLoS ONE 2012-09-20

Interspecific hybridization, polyploidization and transitions from sexuality to asexuality considerably affect organismal genomes. Especially the last mentioned process has been assumed play a significant role in initiation of chromosomal rearrangements, causing increased rates karyotype evolution. We used cytogenetic analysis molecular dating cladogenetic events compare rate changes chromosome morphology asexually sexually reproducing counterparts European spined loach fish (Cobitis)....

10.1371/journal.pone.0146872 article EN cc-by PLoS ONE 2016-01-25

Legless lizards, the slow worms of genus Anguis, are forming secondary contact zones within their Europe-wide distribution. We examined 35 populations A. fragilis and colchica to identify level morphological genetic divergence in Poland. applied a conventional study approach using metric, meristic, categorial (coloration) features for phenotype analysis, two standard molecular markers, mitochondrial (NADH-ubiquinone oxidoreductase chain 2; ND2) nuclear (V(D)J recombination-activating protein...

10.7717/peerj.18563 article EN cc-by PeerJ 2025-01-06

Abstract: Interspecific gene flow may profoundly impact genome integrity and adaptive evolution in hybridizing species, leading to novelties such as transgressive traits, supergenes, or, sometimes, the emergence of asexually reproducing lineages. Conventionally, introgression is thought proceed between reproductively interacting mediated by recombining interspecific hybrids, while asexual lineages are considered evolutionary deadlock for genomes trapped them. Our study on Cobitis loaches...

10.1101/2025.03.28.645731 preprint EN cc-by-nc-nd 2025-04-01

Although the unique features of asexual reproduction and hybridization among European spined loaches (genus Cobitis ) have recently attracted attention conservation biologists, faunists evolutionary research has suffered from uncertain identification specimens their genomes because extreme morphological similarity all species within hybrid complex. In this article, a Europe‐wide study is reported, which was performed on samples collected by several teams. Several complementary methodologies,...

10.1111/j.1095-8649.2007.01663.x article EN Journal of Fish Biology 2007-11-26

Hybridization and polyploidization are important evolutionary processes whose impacts range from the alteration of gene expression phenotypic variation to triggering asexual reproduction. We investigated fishes Cobitis taenia-elongatoides hybrid complex, which allowed us disentangle direct effects both processes, due co-occurrence parental species with their diploid triploid hybrids. Employing morphological, ecological, RNAseq approaches, we molecular determinants polyploid forms. In...

10.1093/molbev/msz114 article EN cc-by Molecular Biology and Evolution 2019-05-03

Abstract Despite its inherent costs, sexual reproduction is ubiquitous in nature, and the mechanisms to protect it from a competitive displacement by asexuality remain unclear. Popular mutation‐based explanations, like Muller's ratchet Kondrashov's hatchet, assume that purifying selection may not halt accumulation of deleterious mutations nonrecombining genomes, ultimately leading their degeneration. However, empirical evidence scarce remains particularly unclear whether mutational...

10.1111/mec.15539 article EN cc-by Molecular Ecology 2020-07-06

In the context of paradoxical ubiquity sex, we tested whether stable coexistence sexual and asexual fish genus Cobitis is mediated by parasites, as suffer more from parasitic infections because their lower genetic variability [the Red Queen hypothesis (RQH)], or partial niche shift two strains differing in mode reproduction. We did not find a clear correlation between infection risk with helminth parasite proportion sexuals, found similar rates among females co-occurring asexuals general,...

10.1111/bij.12329 article EN Biological Journal of the Linnean Society 2014-07-29

A special feature of spined loaches the genus Cobitis in Central Europe is frequent occurrence diploid-polyploid complexes which polyploid gynogenetic forms act as sperm parasites to diploid form. This tight binding co-occurring results a high level phenotypic and ecological similarities. The present study searches for morphological differences between them applying characters traditionally used loach taxonomy (body proportions, fin formula, scale shape, lamina circularis, suborbital spine,...

10.3161/000345408x396800 article EN Annales Zoologici 2008-12-01

Hybridization and genome duplication have played crucial roles in the evolution of many animal plant taxa. The subgenomes parental species undergo considerable changes hybrids polyploids, which often selectively eliminate segments one subgenome. However, mechanisms underlying these are not well understood, particularly when hybridization is linked with asexual reproduction that opens up unexpected evolutionary pathways. To elucidate this problem, we compared published cytogenetic RNAseq data...

10.1093/molbev/msab249 article EN cc-by Molecular Biology and Evolution 2021-08-18

The results of a comprehensive study Pleistocene fish‐bearing localities from the territory Poland are presented. Fish remains came lacustrine deposits and cave sites representing time‐span late Early until Holocene. Here we present taxonomic composition species diversity all known fish assemblages Poland. In total, 23 belonging to 20 genera eight families were identified. Cyprinids most taxonomically diverse, followed by salmonids percids. Other each represented only single species. roach,...

10.1111/bor.12489 article EN Boreas 2020-11-20

A hybrid Leuciscus leuciscus × Alburnus alburnus was found during the ichthyofaunistic studies in Bystrzyca River, a left-bank tributary of Odra River (SW Poland). The identified on basis its intermediate features and characteristics parent species (biometrical, osteological anatomical) such as opercular dental bones, pharyngeal bones teeth, shape scales, number, form structure radial canals air bladder complex meristic morphometric characters. With respect to characteristics, is closer dace...

10.3161/00034541anz2015.65.2.010 article EN Annales Zoologici 2015-05-01

A morphological analysis of 11 meristic and 25 plastic characters, based on 72 specimens Pseudorasbora parva from carp ponds in the region Ruda Sułowska (Barycz R. system, SW Poland). The populations occurring European waters display a wide variability, significantly differing one another. Sexual dimorphism is manifested larger body size males as well four characters. main length increase concerns fish medial section (positive allometry), whereas distal parts body, eye diameter postorbital...

10.3750/aip1998.28.2.01 article EN Acta Ichthyologica Et Piscatoria 1998-12-31

Abstract Formation of species generally occurs in a continuum from potentially intermixing populations to independent entities isolated other by pre- and postzygotic barriers. Especially the establishment hybrid sterility (HS) is hallmark speciation, which usually emerges at different rates between sexes. However, although HS frequently observed, underlying molecular mechanisms remain poorly understood. Here we report that speciation proceeds through previously unnoticed stage gene flow...

10.1101/663112 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2019-06-13

The ichthyofauna of the Odra River, its major tributaries (Oława, Widawa, Bystrzyca, Ślęza) and selectedreservoirs (sand clay pits, city park ponds, recreational reservoirs, moat) within Wrocław is described on basis data obtained in our own studies (electrofishing net-catching), quality control catches Polish Angling Association, analysis stocking registers, angling inquiries interviewing anglers 1980–2010. Forty six fish lamprey species were recorded: 42 41 tributaries. Twenty eight...

10.3161/00159301ff2012.55.1.049 article EN Fragmenta Faunistica 2012-01-01

Abstract The helminth fauna of weatherfish (Misgurnus fossilis) in natural range is reviewed. Several species reported are discussed with reference to host specificity and their geographical distribution. current list parasites the includes 37 species. Most (15) digenean trematodes, half them being larval stages. Only one trematode — Allocreadium transversale more specific parasite weatherfish. Second largest group Monogenea, 10 Two (Gyrodactylus strelkovi G. misgurni) found only genus...

10.2478/s11687-008-0036-x article EN cc-by-nc-nd Helminthologia 2008-12-01
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