I am doing nested pcr. I have completed round of pcr with outer primers now i am going for nested round of primers should i use pcr reaction as such or dilution of pcr reaction with outer primers. Which will give me good results. Thanx.
I believe that the most frequent is to use PCR reaction as such and change the set of primers in a second reaction.
I worked with a variant of nested PCR that consists in about 20 cycles of the first reaction PCR and then use this product as DNA in a second reaction with the same reagents for another 20-25 cycles.
Robert R Martin, Delano James, C AndréLévesque. Impacts of molecular diagnosis technologies on plant disease managemen. Annual Review of Phytopathology 2000,38: 207~ 209.