Trimming adapter sequences – is it necessary? Removal of adapter sequences in a process called read trimming, or clipping, is one of the first steps in analyzing NGS data. With more than 30 published adapter trimming tools there is a more than large choice for the appropriate tool. Yet, there is a debate whether this step really is as important as the number of tools suggests, or whether it is possible to skip this time-consuming step for many NGS applications. http://buff.ly/2rTMmnJ