First report of <i>Tobacco leaf curl Cuba virus</i> infecting common bean in Cuba

Leyva, R.; Quiñones, Madelaine; Acosta, K.; Piñol, B.; Xavier, Cristian; Zerbini, F. Murilo

doi:10.5197/j.2044-0588.2016.033.017

Cited by 6 publications

(3 citation statements)

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“…by TbLCuCV in HT and the DO is the first report of this virus in these countries, and extends on a previous report of TbLCuCV infecting M. alceifolia in JM [36]. Together with reports of TbLCuCV infecting tobacco and common bean in CU Morán et al 2006; Leyva et al 2016) [71,72], it appears that this virus is widely distributed in the Caribbean Basin, where it infects crops and weeds. Infectivity and host range experiments with infectious clones confirmed that TbLCuCV induces golden/yellow mosaic symptoms in Malachra sp.…”

Section: Discussionsupporting

confidence: 79%

“…First, TbLCuCV has now been detected in Malachra spp. in multiple countries in the Caribbean Basin, whereas disease outbreaks in crops (tobacco and common bean) have only been reported from CU and seem to be sporadic [ 71 , 72 ]. Second, TbLCuCV is most closely related to other weed-infecting bipartite begomoviruses from the Caribbean Basin ( Fig 2 ), consistent with evolution of these viruses from a common ancestor and adapted to non-cultivated (weed) species.…”

Section: Discussionmentioning

confidence: 99%

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Weed-infecting viruses in a tropical agroecosystem present different threats to crops and evolutionary histories

et al. 2021

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In the Caribbean Basin, malvaceous weeds commonly show striking golden/yellow mosaic symptoms. Leaf samples from Malachra sp. and Abutilon sp. plants with these symptoms were collected in Hispaniola from 2014 to 2020. PCR tests with degenerate primers revealed that all samples were infected with a bipartite begomovirus, and sequence analyses showed that Malachra sp. plants were infected with tobacco leaf curl Cuba virus (TbLCuCV), whereas the Abutilon sp. plants were infected with a new bipartite begomovirus, tentatively named Abutilon golden yellow mosaic virus (AbGYMV). Phylogenetic analyses showed that TbLCuCV and AbGYMV are distinct but closely related species, which are most closely related to bipartite begomoviruses infecting weeds in the Caribbean Basin. Infectious cloned DNA-A and DNA-B components were used to fulfilled Koch’s postulates for these diseases of Malachra sp. and Abutilon sp. In host range studies, TbLCuCV also induced severe symptoms in Nicotiana benthamiana, tobacco and common bean plants; whereas AbGYMV induced few or no symptoms in plants of these species. Pseudorecombinants generated with the infectious clones of these viruses were highly infectious and induced severe symptoms in N. benthamiana and Malachra sp., and both viruses coinfected Malachra sp., and possibly facilitating virus evolution via recombination and pseudorecombination. Together, our results suggest that TbLCuCV primarily infects Malachra sp. in the Caribbean Basin, and occasionally spills over to infect and cause disease in crops; whereas AbGYMV is well-adapted to an Abutilon sp. in the Dominican Republic and has not been reported infecting crops.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Weed-infecting viruses in a tropical agroecosystem present different threats to crops and evolutionary histories

et al. 2021

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“…Globally, beans are reported to be infected naturally by at least 83 viruses belonging to 24 genera of 12 families ( Table 1 ) [ 4 , 5 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 ]. Among these viruses the potyvirids bean common mosaic virus (BCMV) and bean common mosaic necrosis virus (BCMNV) are considered the most important ones.…”

Section: Viruses Infecting Major Legumesmentioning

confidence: 99%

An Annotated List of Legume-Infecting Viruses in the Light of Metagenomics

Chatzivassiliou

2021

Plants

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Legumes, one of the most important sources of human food and animal feed, are known to be susceptible to a plethora of plant viruses. Many of these viruses cause diseases which severely impact legume production worldwide. The causal agents of some important virus-like diseases remain unknown. In recent years, high-throughput sequencing technologies have enabled us to identify many new viruses in various crops, including legumes. This review aims to present an updated list of legume-infecting viruses. Until 2020, a total of 168 plant viruses belonging to 39 genera and 16 families, officially recognized by the International Committee on Taxonomy of Viruses (ICTV), were reported to naturally infect common bean, cowpea, chickpea, faba-bean, groundnut, lentil, peas, alfalfa, clovers, and/or annual medics. Several novel legume viruses are still pending approval by ICTV. The epidemiology of many of the legume viruses are of specific interest due to their seed-transmission and their dynamic spread by insect-vectors. In this review, major aspects of legume virus epidemiology and integrated control approaches are also summarized.

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