Cacao swollen shoot virus
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Cacao swollen shoot virus (CSSV)
The virus causes a serious disease of cacao in western Africa. The disease is endemic in forest trees of that region and is transmitted by various species of mealybugs as well as through seeds. The symptoms of the disease include swelling of the shoots and roots as well as reddish leaves. Severe strains can kill cacao trees within 2 years. Sequencing of the DNA genome revealed a size of 7161 bp and five open reading frames.