Identification of mungbean lines with tolerance or resistance to yellow mosaic in fields in India where different begomovirus species and different Bemisia tabaci cryptic species predominate

Nair, R M and Götz, M and Winter, S and Giri, R R and Boddepalli, V N and Sirari, A and Bains, T S and Taggar, G K and Dikshit, H K and Aski, M and Boopathi, M and Swain, D and Rathore, A and Anil Kumar, V and Lii, E C and Kenyon, L (2017) Identification of mungbean lines with tolerance or resistance to yellow mosaic in fields in India where different begomovirus species and different Bemisia tabaci cryptic species predominate. European Journal of Plant Pathology. pp. 1-17. ISSN 0929-1873

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Abstract

Mungbean (Vigna radiata (L.) Wilczek) is an important pulse crop in India. A major constraint for improved productivity is the yield loss caused by mungbean yellow mosaic disease (MYMD). This disease is caused by several begomoviruses which are transmitted by the whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae). The objective of this study was to identify the predominant begomoviruses infecting mungbean and the major cryptic species of B. tabaci associated with this crop in India. The indigenous B. tabaci cryptic species Asia II 1 was found dominant in Northern India, whereas Asia II 8 was found predominant in Southern India. Repeated samplings over consecutive years indicate a stable situation with, Mungbean yellow mosaic virus strains genetically most similar to a strain from urdbean (MYMV-Urdbean) predominant in North India, strains most similar to MYMV-Vigna predominant in South India, and Mungbean yellow mosaic India virus (MYMIV) strains predominant in Eastern India. In field studies, mungbean line NM 94 showed a high level of tolerance to the disease in the Eastern state of Odisha where MYMIV was predominant and in the Southern state of Andhra Pradesh where MYMV-Vigna was predominant, but only a moderate level of tolerance in the Southern state of Tamil Nadu. However, in Northern parts of India where there was high inoculum pressure of MYMV-Urdbean during the Kharif season, NM 94 developed severe yellow mosaic symptoms. The identification of high level of tolerance in mungbean lines such as ML 1628 and of resistance in black gram and rice bean provides hope for tackling the disease through resistance breeding.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Uncontrolled Keywords: Vigna, Begomovirus, Bemisia tabaci, Resistance, Mungbean, Mungbean yellow mosaic disease, Breeding
Subjects: Others > Plant Disease
Others > Legume Crops
Depositing User: Mr Ramesh K
Date Deposited: 08 Aug 2017 10:46
Last Modified: 08 Aug 2017 10:46
URI: http://oar.icrisat.org/id/eprint/10132
Official URL: http://dx.doi.org/10.1007/s10658-017-1187-8
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: We thank the following for providing some of the lines used in this study: Indian Institute of Pulses Research, Kanpur, India (IPM 99-125, IPM 02-3, IPM 02-14, IPM 409-4, IPM 205-7, IPM 02-17, IPM 02-19, IPM 9901-6, IPM 9901-10 and PDM 139), Punjab Agricultural University, Ludhiana, India (ML 613, ML 818, ML 1299, ML 1628, ML 1666, PAU 911, SML 823, SML 832, SML 843, SML 1018, SML 1074, Mash1-1 and RBL-6), and Tamil Nadu Agricultural University, Coimbatore, India ( CO. 5, CO. 6, CO (G9)-7, VBN(G9)-2 and VBN(G9)-3). This study was funded in part through the German Federal Ministry for Economic Cooperation and Development (BMZ), Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH Project no. 81141863.
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