Related Experiment Video
Updated: Dec 25, 2025

Site-Directed φC31-Mediated Integration and Cassette Exchange in Anopheles Vectors of Malaria
Published on: February 2, 2021
Digest: Avian genomes are permeable to introgression for a few million years
Jente Ottenburghs1,2,3
1Department of Ecology and Genetics, Uppsala University, Uppsala, 75236, Sweden.
Abstract:
How wide is the time window for introgression after divergence? Pulido-Santacruz et al. addressed this question by studying the evolutionary history of the bird genus Dendrocincla. They found five introgression events that occurred between a few hundred thousand and around 2.5 million years after divergence. The introgressed genomic proportion declined exponentially with the age of the hybridizing taxa. Hence, this study suggests that species boundaries are permeable up to 2.5 million years after divergence.
More Related Videos
Related Concept Videos
Genome Size and the Evolution of New Genes
Genome Size and the Evolution of New Genes
DNA-only Transposons
The donor site from where the transposon is excised is either degraded or...
Gene Flow
Horizontal Gene Transfer
Overview of Transposition and Recombination

