Non limiting Examples of silenced genes which could be monitored in {HEAD ~ this way} include any of those which have already been shown to be suppressible by PTGS in {TAIL ~ the literature} 
Non limiting Examples of silenced genes which could be monitored in { HEAD ~ this way } include any of those which have already been shown to be suppressible by PTGS in { TAIL ~ the literature }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL