Vol. 11, Issue 7 (2022)

Author(s):
Huirem Chandrajini, PH Sobita, Bireswar Sinha, L Nongdren Khomba, PH Ranjit and N Gopimohon

Abstract:
King chilli (Capsicum chinense Jacq.) is being grown in varied climatic conditions of North East region (NER) of India throughout. As chilli’s having wide geographical distribution, king chilli is exposed to many pathogens and particularly to Chilli veinal mottle virus (ChiVMV) that limit its production. Present study, conclusively reported the 52.00-72.85% relative occurrence of the ChiVMV in NER India during 2019-20 and association of virus with different typical symptoms like cupping of leaf lamina and mottling, vein banding and puckering, shoe's string of leaf in king chilli samples. Further, two ChiVMV Manipur isolates upon mechanical inoculation showed significantly difference in symptom expression, indicating wide pathogenic diversity among them. Based on partial nuclear inclusion protein a (NIa) sequence, analysis of two ChiVMV isolates from Manipur indicated genetic homogeneity among them, but distinctiveness from ChiVMV isolates reported from the other parts of India and other countries. ChiVMV isolates from Manipur (MNP1 and MNP2) segregated to a distinct cluster and clustering nearest to the isolates from Taiwan (OK181760) and China (MT974520). The present finding may be helpful for characterization of virus and its sustainable management through the deployment of genetic resistance targeted against viruses.