triplication

"Comparison of the three independent seagrass lineages, including freshwater sister lineages, revealed a shared ancient whole genome triplication at about 86 million years. This was quite exciting because large parts of the ocean were oxygen-free at that time and it's also a uniting event involving the three lineages," says Professor Dr. Van De Peer.

“Down syndrome individuals might be more susceptible to infection due to triplication of TMPRSS2,” Dierssen says.

Genome analyses enabled the reconstruction of the evolutionary history of the Asterids, further establishing the existence of a whole-genome triplication at the base of the Asterids II clade6 and a sunflower-specific whole-genome duplication around 29 million years ago7.

It took the Torrances three years to get their youngest son Dylan, now 12, diagnosed with Partial Triplication 15 - a mutation of his 15th chromosome.

Instead affected members had what geneticists call copy number variation: Family members with Parkinson's had three copies of the normal alpha-synuclein gene—a triplication—on one copy of chromosome 4.