The invention discloses an application of a KLF9
gene in chicken
heat stress resistance breeding. The invention also discloses an interference fragment of the KLF9
gene, a primer pair based on the interference fragment of the KLF9
gene, an interference vector containing the interference fragment and a construction method of the interference vector. The invention also discloses a detection kit. The invention also discloses an interference fragment of the KLF9 gene, a primer pair based on the interference fragment of the KLF9 gene, and an application of the interference vector in chicken
heat stress resistance breeding. The invention further discloses a breeding method of the
heat stress resistant chicken. The gene KLF9 provided by the invention can be used as a marker for detecting the heat
stress resistance level of the chicken, the expression quantity of the gene can be quickly judged by detecting the expression quantity of the gene in the
skeletal muscle of the chicken in breeding, the chicken with a half-sib relationship with a detected individual can be selected and remained, and the quick breeding of target characters in the chicken breeding process can be accelerated. The primer pair and the kit provided by the invention can be used for detecting the expression quantity of the KLF9 in the chicken
skeletal muscle tissue, and the detection method is simple and rapid.