Deployment of yellow mosaic disease resistance in mungbean [Vigna radiata (L.) Wilczek] through interspecific hybridization

Mungbean yellow mosaic virus [Urdbean: New Delhi: 2011] Accession no. JQ398669.1, was found to be prevalent in both summer and kharif season causing Yellow Mosaic Disease (YMD) of mungbean. Since similar strain was observed in both the seasons, the short duration interspecific derivative lines of mungbean suitable for summer season were evaluated for YMD resistance in kharif season- a highly favourable environment for YMD epidemics during 2014-2016. Out of fourteen lines showing stable resistant reaction, few lines promising for other economically important traits were selected and again evaluated by whitefly mediated artificial inoculation technique for confirmation of resistance during 2017. The selected promising interspecific derivative lines showed no YMD symptoms except SML 1829. SML 1827 derived from interspecific cross between mungbean and rice bean showed highest yield among all interspecific derivatives. Further, rice bean specific segments were also identified in SML 1827 with SSR markers.