Vegetos
(An International Journal of Plant Research & Biotechnology)
Deciphering monogenic recessive resistance to mungbean yellow mosaic virus disease through multi-generation analysis in Vigna radiata
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Research Articles | Published: 14 June, 2025
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Keywords: Inheritance, Mungbean, MYMV resistance, Segregation ratio
Abstract
Two intraspecific crosses viz., ADT 3 (S) × GAM 5 (R) and ADT 3 (S) × VGG 16-058 (R) involving susceptible and resistant parents were attempted to investigate the inheritance pattern for MYMV (Mungbean Yellow Mosaic Virus) disease resistance in mungbean. Disease response of parents, F1, F2 and F3 population was evaluated using the infector row technique with VBN 4 as a susceptible check. In both the crosses, F1 plants were highly susceptible similar to that of the susceptible parent (ADT 3). The F2 population segregated in the ratio of 3:1 (susceptible: resistant) indicating monogenic recessive gene is responsible for MYMV resistance. Moreover, the segregation pattern in F3 progeny rows with the ratio of 1:2:1 (susceptible: segregating: resistant) confirmed the segregation pattern observed in F2 population. Collectively, this study identifies a monogenic recessive resistance to MYMV in two mungbean crosses, confirmed through phenotypic evaluation of F1, F2, and F3 generations. These findings pave the way for integrating resistant traits from the donors viz., GAM 5 and VGG 16-058 into high-yielding commercial varieties, offering a sustainable solution to MYMV management. Also, the resistant plants identified in the present study can be evaluated for yield performance and integrated into the breeding programme to develop mungbean varieties resistant to MYMV disease for commercial release.
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Author Information
Department of Pulses, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore, India