A5029159726- Genomics and Phylogenetic Studies
- Chromosomal and Genetic Variations
- Subterranean biodiversity and taxonomy
- Fish biology, ecology, and behavior
- Advanced biosensing and bioanalysis techniques
- Spider Taxonomy and Behavior Studies
- Genetic diversity and population structure
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Protist diversity and phylogeny
- Fish Biology and Ecology Studies
- Silk-based biomaterials and applications
- CRISPR and Genetic Engineering
- Marine and environmental studies
- Environmental DNA in Biodiversity Studies
- Geology and Paleoclimatology Research
- Robotics and Automated Systems
- Fish Ecology and Management Studies
Charles University
2016-2024
Czech Academy of Sciences, Institute of Animal Physiology and Genetics
2022-2023
University of South Bohemia in České Budějovice
2022
Abstract Background Despite progress in genomic analysis of spiders, their chromosome evolution is not satisfactorily understood. Most information on spider chromosomes concerns the most diversified clade, entelegyne araneomorphs. Other clades are far less studied. Our study focused haplogyne araneomorphs, which remarkable for unusual sex systems and co-evolution nucleolus organizer regions (NORs); some haplogynes exhibit holokinetic chromosomes. To trace karyotype family level, we analysed...
The morphologically uniform suborder Cyphophthalmi represents a basal group of harvestmen (Opiliones). As such, it plays an important role in the reconstruction karyotype evolution within this arachnid order. cytogenetic analysis 6 representatives Cyphophthalmi, namely <i>Miopsalis</i> sp. (2n = 30; Stylocellidae), <i>Austropurcellia arcticosa</i> (Cantrell, 1980) Pettalidae), <i>Parapurcellia amatola</i> de Bivort &amp; Giribet, 2010 32;...
Using African annual killifishes of the genus Nothobranchius from temporary savannah pools with rapid karyotype and sex chromosome evolution, we analysed chromosomal distribution telomeric (TTAGGG)n repeat Nfu-SatC satellite DNA (satDNA; isolated furzeri) in 15 species across killifish phylogeny, Fundulosoma thierryi as an out-group. Our fluorescence situ hybridization experiments revealed that all taxa share presence but diverse organization on chromosomes. landscape was similar conspecific...
The exception, in the whole Class Arachnida, is one population of Mitopus morio (Fabricius, 1799) (Eupnoi: Phalangiidae), which potentially has a WZ system (Tsurusaki & Cokendolpher, 1990).However, differences chromosome length some bivalents and their interpretation as sex chromosomes, may refl ect heterozygous nature nucleolus organiser regions (NORs) (Šťáhlavský et al., 2018).The NORs include major ribosomal RNA (45S rRNA: i.e. 18S, 5.8S, 28S rRNA) gene clusters, are variable...
The harvestman family Neogoveidae (suborder Cyphophthalmi) is distributed across Neotropics, south-eastern USA and Western Central Africa. Nevertheless, the core of its known diversity lies in Americas. sole genus from Africa Parogovia, with only three species described so far. Here we describe a new species, Parogovia parasironoides sp. nov. Cameroon, which morphologically close to P. sironoides. In addition analyses external morphology, spermatopositor ovipositor, also karyotype (2n=32),...
Sex chromosomes of teleost fishes often have low levels differentiation and undergo frequent turnovers. Annual Nothobranchius killifishes comprise representatives with male-heterogametic XY or X1X2Y sex chromosome systems, scattered across their phylogeny, nested within species lacking cytologically detectable chromosomes. They thus provide a suitable system to study evolution turnover. Here, we combined molecular cytogenetics genomic analyses examine several multiple systems in spp....
An amendment to this paper has been published and can be accessed via the original article.
The suborder Cyphophthalmi (Arachnida: Opiliones) is the sister group to all remaining harvestmen. typically shows limited dispersal abilities, cryptic diversity and long-isolated populations. These facts make interesting for biogeographic, phylogenetic cytogenetic studies. divided into six families, of them with a specific long evolutionary history. However, many species are still undescribed, their data only fragmentary. This fact complicates reconstruction main mechanisms karyotype...
Abstract Repetitive DNA may have significant impact on genome evolution. African annual killifishes of the genus Nothobranchius (Teleostei: Nothobranchiidae), which has adapted to temporary water pools in savannahs, possess genomes with high repeat content. They are also characterized by rapid karyotype and sex chromosome evolution but role repeats these processes remains largely unknown. Here, we analyzed distribution telomeric (TTAGGG) n Nfu-SatC satellite (isolated formerly from N....
Abstract Repetitive DNA represents an important driver of sex chromosome differentiation. Yet, repetitive sequences tend to be misrepresented or overlooked in genomic studies. We analysed landscape chromosomes several populations a turquoise killifish Nothobranchius furzeri and its sister species N. kadleci (Teleostei: Nothobranchiidae), representatives African annual killifishes with high rate karyotype evolution. combined bioinformatic analyses repeatome molecular cytogenetic techniques...