A phylogenetic estimate of canine retrotransposition rates based on genome assembly comparisons
By comparing genome assemblies across seven canine lineages, this study estimates that new LINE-1 and SINEC retrotransposon insertions occur at rates of 1/184 and 1/22 births, respectively, revealing that the high levels of dimorphic retrotransposons in dogs primarily reflect long-standing genetic variation rather than recent rapid mobilization.