Frequent short motifs in different nematode genomes.

S indicates that the motif takes part in the formation of satellites, usually in.combination with other sequences.I indicates that the motif is found in isolated positions.The number of occurrences of these motifs in the other nematode species and in D. melanogaster is presented in Table S1.No frequent short motifs have been found in either T. spiralis or D. melanogaster.In M.hapla inspection of the most frequent tridecamer motifs shows that none of them contains any C, G bases. The most frequent motifs are AAAAAAATTTTTT (10056 cases) and AAAAATATTTTTT (10074 cases). The latter motifs do not form any significant cluster, they are scattered throughout the genome. In this table we only include those frequent short motifs in M. hapla which contain some C, G bases.