Genetic variation articles from across Nature Portfolio

An analysis of 780 breast cancer genomes shows that focal amplifications are frequently preceded by dicentric chromosome formation from inter-chromosomal translocations associated with oestrogen receptor binding, which leads to chromosome bridge formation and breakage, initiating the amplification process.

A study comparing the pattern of single-nucleotide variation between unique and duplicated regions of the human genome shows that mutation rate and interlocus gene conversion are elevated in duplicated regions.

This study illustrates long interspersed nuclear element-1 retrotransposition-induced somatic mosaicism in normal cells and provides insights into the genomic and epigenomic regulation of transposable elements over the human lifetime.

Comparisons within the human pangenome establish that homologous regions on short arms of heterologous human acrocentric chromosomes actively recombine, leading to the high rate of Robertsonian translocation breakpoints in these regions.