Chromosome and Genome Biology of Fungi - Frontiers
Fungi are important experimental systems in biological, medical, and agricultural research. Unicellular yeasts (S. cerevisiae, S. pombe) have long been amongst the most favored model organisms for both geneticists and epigeneticists alike.
Advances in understanding the evolution of fungal genome …
High-throughput sequencing of a diverse set of fungal genomes has also illuminated the frequency, mechanisms, and impacts of large-scale changes, which include chromosome structural variation and changes in chromosome number, such as aneuploidy, polyploidy, and the presence of supernumerary chromosomes.
Advances in understanding the evolution of fungal genome ... - PubMed
2020年7月27日 · High-throughput sequencing of a diverse set of fungal genomes has also illuminated the frequency, mechanisms, and impacts of large-scale changes, which include chromosome structural variation and changes in chromosome number, such as aneuploidy, polyploidy, and the presence of supernumerary chromosomes.
Fungal chromosomes | Journal of Genetics - Springer
There are now four well-established methods to examine the chromosomes of filamentous fungi: mapping genes to linkage groups by recombination analyses, light-microscopic observation of chromosomes in meiotic divisions, electron-microscopic observation of the synaptonemal complexes between homologous chromosomes in prophase of meiosis, and ...
Chromosome visualisation in filamentous fungi - ScienceDirect
2006年10月1日 · The application of pulse field gel electrophoresis (PFGE) to study fungal chromosomes (Mills and McCluskey, 1990) has contributed to the knowledge of chromosome number in fungi. The advantage is applicability to various fungi irrespective of sexual stage, and the ability to visualise minute chromosomes and differences in size between chromosomes.
Nuclear genome organization in fungi: from gene folding to Rabl chromosomes
Chromosome conformation capture followed by high-throughput sequencing (Hi-C) has elucidated how fungal genomes are globally organized in Rabl configuration, in which centromere or telomere bundles are associated with opposite faces of the nuclear envelope.
Chromosome visualisation in filamentous fungi - PubMed
Fungal chromosomes are at the lowest resolution of light microscopy; thus few attempts to visualise fungal chromosomes have been successful. Fungi examined have been mainly Ascomycotina. The number of chromosomes per nucleus, estimated by conventional light visualisation and stained with standard dyes like Giemsa or aceto-orceine, usually does ...
A Matter of Scale and Dimensions: Chromatin of Chromosome …
Chromosomes of fungi are linear segments of DNA, covered by a diverse assembly of RNA and proteins. They contain three landmarks required for function, namely, origins for DNA replication, centromeric DNA as attachment points for kinetochores, and telomere repeats to circumvent the end replication problem for linear DNA.
Fungal Gene - an overview | ScienceDirect Topics
Fungi also have nonessential, supernumerary chromosomes, often referred to as B chromosomes. These have been shown recently in Fusarium oxysporum to contain pathogenicity-related genes, and as these chromosomes can be easily exchanged between isolates, this could provide a genetic mechanism for host jumps by some fungal pathogens.
Ploidy Variation in Fungi – Polyploidy, Aneuploidy, and Genome ...
In fungi, polyploid cells frequently give rise to aneuploid progeny (both whole chromosome and segmental), chromosome rearrangements, and translocations. For example, tetraploid S. cerevisiae cells have a 200–1000 fold increase in the rate of chromosome loss compared to isogenic diploid cells ( 88 , 102 , 103 ).