Jai Gopal, PhD, is Principal Scientist in the Division of Crop Improvement at the Central Potato Research Institute in Shimla, India. His research experience includes nearly three decades in potato genetics, breeding, and biotechnology. He has studied genetics and floral biology of the potato, has bred a number of potato varieties and parental lines, and has developed selection procedures combining in vitro and in vivo approaches. His work has appeared in Theoretical & Applied Genetics, Plant Breeding, Plant Cell Reports, Euphytica, and Potato Research.

S.M. Paul Khurana, PhD, is Vice-Chancellor at Rani Durgawati University in Jabal pur, India. He was National Coordinator of Potato for ten years and Director of the Central Potato Research Institute for three years. His research experience includes over three decades of work on plant viruses and viroids, and he is an expert in virus detection techniques. He standardized use of ELISA and ISEM for detection of potato viruses and developed simple techniques for screening resistance to potato viruses. His published works have appeared in various international journals. Dr. Khurana has also edited several books, conference proceedings, and journals.