Mung bean (Vigna radiata L. Wilczek) is a short-duration and widely adaptable leguminous crop grown across different agroclimatic zones and kinds of soils. The development of preferred climate-resilient mung bean cultivars has advanced significantly over the past two decades mainly through introgression breeding, which has made extensive use of novel genetic resources. However, as new competitors or biotypes of biotic stress agents emerge, the utilization of already existing genetic resources to counteract these stresses may be insufficient. Thus, employing wild and exotic plant genetic resources to disseminate genetics will pay dividends in the long run. Through the utilization of linkages between various research groups, many agriculturally significant genes have been uncovered in recent years, and the output of mung bean improvement has been improved by harnessing these genes. Utilization of the genetic and genomic resources toward the creation of new genetic diversity by tagging, mapping, and use of genes of interest has been ameliorated. For the purpose of effectively using foreign genes/QTL to reduce sexual stress in mung bean, this chapter offers the recent information on donor and genetic, genomic advancements, functional genomics and transcriptomics, and molecular marker technology.