Begomovirus and Associated Satellite Components Infecting Cluster Bean (Cyamopsis tetragonoloba) in Pakistan

Abstract

Cluster bean (Cyamopsis tetragonoloba) is a legume that is grown widely on the Indian subcontinent. Leaf curl symptoms of cluster bean plants collected in the Punjab, Pakistan, were shown to be associated with the begomovirus Papaya leaf curl virus; the first time this virus has been identified infecting cluster bean in Pakistan. The virus was shown to be associated with Tomato leaf curl betasatellite. Additionally, some cluster bean plants were shown to also harbour Cotton leaf curl Multan alphasatellite. The significance of these findings is discussed.

An Insight into Cotton Leaf Curl Multan Betasatellite, the Most Important Component of Cotton Leaf Curl Disease Complex

“…and luffa ( Luffa spp.) with the helper ToLCNDV, in chili ( Capsicum annuum ) with Bhendi yellow vein mosaic virus [ 58 ], in Sonchus arvensis with Alternanthera yellow vein virus [ 59 ], in sunn hemp ( Crotalaria juncea ) with CLCuKoV-Bur [ 60 ], in China rose ( Hibiscus rosa - sinensis ) with CLCuKoV [ 61 ], and in cluster bean ( Cyamopsis tetragonoloba ) with PaLCuV [ 62 ]. Under experimental conditions, CLCuMuB produced mild symptoms in cotton when bombarded with Tomato leaf curl virus (ToLCV) [ 63 ]; and in the presence of CLCuMuB, the symptoms of a NW begomovirus Cabbage leaf curl virus (CbLCuV) were also enhanced in Nicotiana benthamiana [ 10 ].…”