Sequence variability within the tobacco retrotransposon Tnt1 population

摘要: Abstract Retroviruses consist of populations different but closely related genomes referred to as quasispecies. A high mutation rate coupled with extremely rapid replication cycles allows these sequences be highly interconnected in a equilibrium. It is not known if other retroelements can show similar population structure. We here that when the tobacco Tnt1 retrotransposon expressed, its RNA unique sequence sequences. Nevertheless, this variable equilibrium and could considered have thus named structure presented by quasispecies-like. expression situations gives rise sequences, suggesting an adaptive capacity for element. The analysis variability within total genomic elements shows mutations frequently occur important regulatory defective are often produced. discuss implications regulation evolution.