The genomic integrity of every organism is constantly challenged by endogenous and
exogenous DNA-damaging factors. Mutagenic agents cause reduced stability of plant …

Polyploidy is a prominent process in plants and has been significant in the evolutionary
history of vertebrates and other eukaryotes. In plants, interdisciplinary approaches …

The replicative spread of retrotransposons in the genome creates new insertional
polymorphisms, increasing retrotransposon numbers and potentially both their share of the …

Long-term depletion of the stratospheric ozone layer contributes to an increase in terrestrial
solar ultraviolet-B radiation,,. This has deleterious effects on living organisms, such as DNA …

Although allelic sequences can vary extensively, it is generally assumed that each gene in
one individual will have an allelic counterpart in another individual of the same species. We …

To analyze genomic changes resulting from double‐strand break (DSB) repair, transgenic
tobacco plants were obtained that carried in their genome a restriction site of the rare cutting …

Modification of genes through homologous recombination, termed gene targeting, is the
most direct method to characterize gene function. In higher plants, however, the method is …

Geminiviruses have spread worldwide and have become increasingly important in crop
plants during recent decades. Recombination among geminiviruses was one major source …

The replicative retrotransposon life cycle offers the potential for explosive increases in copy
number and consequent inflation of genome size. The BARE-1 retrotransposon family of …

Organisms with large genomes contain vast amounts of repetitive DNA sequences, much of
which is composed of retrotransposons. Amplification of retrotransposons has been …