First report of Tomato mottle mosaic virus on tomato in Mauritius

نویسندگان

چکیده

With an estimated cultivated area of 900 ha and annual production about 10,000 tonnes, tomato (Solanum lycopersicum) is economically important crop in Mauritius which grown both under open field shade house conditions. In February 2021, unusual symptoms comprising leaf shoot chlorosis, uneven ripening, necrotic spots on fruits leaves, as well distortion, were observed 10% plants (cv. Elizeo) a the central region (Figure 1). following weeks, similar two other houses cvs. Tropical Rose Polycarpo, where disease incidences 75 to 80% recorded. The previously unknown indicative infection with either tospovirus or tobamovirus. Ten randomly selected diseased fruit samples tested negative by RT-PCR generic primers for tospoviruses (Chu et al., 2001), but positive tobamovirus (Li al. 2018) based conserved regions replicase gene. Three PCR products latter sequenced Blastn analysis showed very high identity available sequences Tomato mottle mosaic virus (ToMMV, genus Tobamovirus), which, our knowledge, has never been found before. obtained, one was deposited GenBank (OK138915), >99.7% identical each other, had 98.4% nucleotide sequence corresponding ToMMV reference (NC_022230). first described 2013 infecting crops Mexico 2013) subsequently China 2014), USA (Webster Israel (Turina 2016) Spain (Ambrós causing infections capsicum crops. mosaic, necrosis literature match those Mauritius. Seed transmission not yet demonstrated, observations suggest that seeds may play role rapid spread globally. Following identification new Mauritius, awareness campaign conducted across country familiarise growers management strategies surveillance strengthened.

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ژورنال

عنوان ژورنال: New Disease Reports

سال: 2021

ISSN: ['2044-0588']

DOI: https://doi.org/10.1002/ndr2.12041