Repetitive Sequences in the Potato and Related Genomes

摘要: Repetitive sequence elements refer to sequences which are repeated a number of times in the genome and generally composed either interspersed or tandem repeats, may be coding non-coding. Solanum genomes, like that potato tomato, exceptionally rich repetitive have evolved by multidirectional activities elements. Interspersed elements, particular, contributed evolution not only their amplification genome, but also association with different genes. The genomic proximity genes influence expression patterns, development alternative functions, emergence new elimination existing Long terminal repeat (LTR) retrotransposons represent most abundant class among all repeats they considered progenitors some other types such as microsatellites. Centromeric, telomeric, minisatellites microsatellites constitute genomes. patterns occurrence abundance vary species Solanum, although careful analysis reveals perceptible evolutionary trends. Tandem particularly microsatellites, frequently been exploited for molecular markers diverse applications potato. present chapter deals distribution categories related