Understanding biology and genetics at molecular level has become very important for better understanding and manipulation of genome architecture. Molecular markers have contributed significantly in this respect and have been widely used in plant science in a number of ways. This includes genetic fingerprinting, identification of duplicates, selection of core collections, determination of genetic distances, genome analysis, identification of markers associated with desirable traits which are useful in marker assisted breeding, genomics and development of transgenics. Use of these markers will significantly reduce breeding time and cycles required for crop improvement. Molecular level understanding of the inheritance of agriculturally important traits creates new opportunities to streamline plant breeding.

In this volume, Volume 4 of the continuing series, the available information on the molecular markers and marker assisted selection was compiled and this would be of immense use to students and researchers in biotechnology of Vegetables, Ornamentals and Tuber Crops.