The invention discloses a
molecular marker linked with southern corn
rust resistance and application of the
molecular marker, and belongs to the technical field of
molecular breeding. The invention provides a
molecular marker closely linked with southern corn
rust resistance, the molecular marker is an
Indel marker, a susceptible corn strain does not contain a
nucleotide sequence of the
Indel, and a
disease-resistant corn strain contains the
nucleotide sequence of the
Indel; the invention also provides a primer pair for detecting the molecular marker closely linked with the southern corn
rust resistance, and the sequences of the primer pair are shown as SEQ ID NO.1 and SEQ ID NO.2. The invention also provides a primer pair for detecting the molecular marker closely linked with the southern corn rust resistance. The method has the advantages of being convenient to use and good in stability and
repeatability, and the southern rust resistance of corn plants can be rapidly and reliably identified; the method is simple to operate, the identification result is not interfered by environmental factors, the accuracy is better, the identification time can be effectively shortened, the identification cost is reduced, and the method has important significance for accelerating the breeding process and reducing the breeding
workload and cost.