Figure 1
From: Short clones or long clones? A simulation study on the use of paired reads in metagenomics

Short clones vs long clones. We assume that the intersection of the species hit by two reads A and B will be larger for pair reads obtained from short clones than for ones obtained from long clones. If this is the case, then use the of long clones in metagenome projects should lead to a more specific assignment of reads.