The invention relates to the field of
agricultural pest drug resistance detection, and provides a detection primer and method for
chilo suppressalis ryanodine receptor I4758M
mutation and application. According to the detection primer, a
mutation recognition site is designed at the 3'
tail end of an inner primer BIP,
specific detection is achieved through the key base difference (A / G) of a
wild type and a
mutant type, and the primer group comprises an outer primer pair F3 / B3, an inner primer pair FIP / BIP and a loop primer pair LoopF / LoopB; the detection method is based on loop-mediated isothermal amplification (LAMP), the
genotype is visually interpreted through color change of reaction liquid, a
thermal cycler is not needed, and the detection method has the advantages of being high in accuracy and sensitivity, easy to operate, low in cost and the like. The matched kit comprises a
rapid DNA extraction
assembly and is suitable for field on-site detection. The
gene mutation frequency of the specific site of the
chilo suppressalis can be rapidly detected, and the
technical support is provided for
resistance monitoring, early warning and scientific treatment of bisamide insecticides.