Related Experiment Video
Updated: Jun 27, 2026

Single Nucleotide Polymorphism-sensitive FISH Detection of Locus-specific Ribosomal RNA Transcription in Drosophila melanogaster
Published on: March 28, 2025
Phylogenetic evidence for multiple independent duplication events at the DYS19 locus
Cristian Capelli1, Francesca Brisighelli, Francesca Scarnicci
1Department of Zoology, University of Oxford, Tinbergen Building, South Parks Road, OX1 3PS Oxford, UK. cristian.capelli@zoo.ox.ac.uk
Abstract:
Duplication events at Y chromosome STR loci have been repeatedly described in human populations. DYS19 is probably the best known example and it exhibits duplicate state in individuals from all continents. Despite the large amount of available data, evolutionary relationship between DYS19 duplication-bearing chromosomes has not been so far investigated. We address the genealogical correlation among such chromosomes by analysing newly identified DYS19 duplicated Y chromosomes by SNP genotyping and microsatellite-based network analysis. SNP and network analysis show that DYS19 duplicated Y chromosomes associate with different Y chromosome lineages. These results indicate that DYS19 duplication occurred more than once during human evolution.
More Related Videos
11:12Determination of the Optimal Chromosomal Location(s) for a DNA Element in Escherichia coli Using a Novel Transposon-mediated Approach
Published on: September 11, 2017
07:55Detection of Homologous Recombination Intermediates via Proximity Ligation and Quantitative PCR in Saccharomyces cerevisiae
Published on: September 11, 2022
Related Concept Videos
Gene Duplication and Divergence
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are characterized.
Gene Families
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
Exon Recombination
Exon shuffling follows “splice frame rules.” Each exon has three reading...
Chromosome Duplication
The basic unit of the chromatin is the nucleosome, consisting of DNA wrapped around octameric histone proteins and short stretches of linker DNA separating individual nucleosomes. The histone proteins within the nucleosome have their...
Polytene Chromosomes
Evolutionary Relationships through Genome Comparisons