Genome-wide association studies in tropical maize germplasm reveal novel and known genomic regions for resistance to Northern corn leaf blight oleh Zerka Rashid, Mehrajuddin Sofi, Sharanappa I. Harlapur, Rajashekhar M. Kachapur, Zahoor Ahmed Dar, Pradeep Kumar Singh, Pervez Haider Zaidi, Bindiganavile Sampath Vivek, Sudha Krishnan Nair