Theophilus Tengey is a Research Scientist (plant breeder) at the CSIR-Savanna Agricultural Research Institute. His research focuses on applying molecular markers in developing stress-tolerant legumes (cowpea) for use by farmers in Guinea and Sudan Savanna of Ghana. He had his Ph.D. studies at the Texas Tech University where his study focused on developing a SNP-based genetic linkage map for Tetraploid peanut and introgression of leaf spot resistant QTLs into West African Adapted and US high Oleic peanut cultivars. Currently, he is applying the knowledge acquired on improving other crops such as cowpea. He is a member of the Crop Science Society of America, American Society of Agronomy, American Peanut Research and Education Society, and the African Plant Breeders Association.