A method for detecting an indel in a target nucleic acid derived from a targetant obtained after gene editing, said method comprising the steps of: a) providing a gene edited targetant or DNA material from a gene edited targetant; b) performing a triprimer amplification reaction to amplify the target nucleic acid from the gene edited targetant or the DNA material from the gene edited targetant, said reaction comprising the steps of: i. providing a forward primer capable of annealing to a region of said target nucleic acid; ii. providing a reverse primer capable of annealing to another region of said target nucleic acid; wherein at least one of the forward and the reverse primers comprises a nucleic acid adaptamer sequence in its 5'-end and wherein said forward and reverse primers are flanking said target nucleic acid; iii. providing at least one universal primer comprising a nucleic acid sequence comprising 5'-NNNTGACCGGCAGCAAAATTG-3' (SEQ ID NO: 1) or a variant thereof comprising a sequence having at least 85% identity to SEQ ID NO: 5, said universal primer being labelled by a fluorophore in its 5'-end, and said universal primer being identical to the adaptamer sequence, and said DNA material or targetant does not comprise a nucleic acid sequence identical to or complementary to the sequence of the universal primer; thereby obtaining fluorophore-labelled amplicons; c) analysing the size of said fluorophore-labelled amplicons in order to determine whether an indel of down to one nucleotide is present, wherein the size is detected by capillary electrophoresis or polyamide gel electrophoresis. a) providing a gene edited targetant or DNA material from a gene edited targetant; b) performing a triprimer amplification reaction to amplify the target nucleic acid from the gene edited targetant or the DNA material from the gene edited targetant, said reaction comprising the steps of: i. providing a forward primer capable of annealing to a region of said target nucleic acid; ii. providing a reverse primer capable of annealing to another region of said target nucleic acid; wherein at least one of the forward and the reverse primers comprises a nucleic acid adaptamer sequence in its 5'-end and wherein said forward and reverse primers are flanking said target nucleic acid; iii. providing at least one universal primer comprising a nucleic acid sequence comprising 5'-NNNTGACCGGCAGCAAAATTG-3' (SEQ ID NO: 1) or a variant thereof comprising a sequence having at least 85% identity to SEQ ID NO: 5, said universal primer being labelled by a fluorophore in its 5'-end, and said universal primer being identical to the adaptamer sequence, and said DNA material or targetant does not comprise a nucleic acid sequence identical to or complementary to the sequence of the universal primer; thereby obtaining fluorophore-labelled amplicons; i. providing a forward primer capable of annealing to a region of said target nucleic acid; ii. providing a reverse primer capable of annealing to another region of said target nucleic acid; wherein at least one of the forward and the reverse primers comprises a nucleic acid adaptamer sequence in its 5'-end and wherein said forward and reverse primers are flanking said target nucleic acid; iii. providing at least one universal primer comprising a nucleic acid sequence comprising 5'-NNNTGACCGGCAGCAAAATTG-3' (SEQ ID NO: 1) or a variant thereof comprising a sequence having at least 85% identity to SEQ ID NO: 5, said universal primer being labelled by a fluorophore in its 5'-end, and said universal primer being identical to the adaptamer sequence, and said DNA material or targetant does not comprise a nucleic acid sequence identical to or complementary to the sequence of the universal primer; thereby obtaining fluorophore-labelled amplicons; c) analysing the size of said fluorophore-labelled amplicons in order to determine whether an indel of down to one nucleotide is present, wherein the size is detected by capillary electrophoresis or polyamide gel electrophoresis.