Fusarium circinatum isolates from northern Spain are commonly infected by three distinct mitoviruses

Vainio, E.J.; Martínez-Álvarez, P.; Bezos, D.; Hantula, J.; Diez, J.J. (2015) - Fusarium circinatum isolates from northern Spain are commonly infected by three distinct mitoviruses - Archives of Virology

Pitch canker is a serious disease of pines caused by the ascomycete fungus Gibberella circinata (anamorph = Fusarium circinatum). Three distinct mitovirus strains have been described in this fungus: Fusarium circinatum mitovirus 1 (FcMV1), FcMV2-1 and FcMV2-2. Here, we investigated the frequency and population variation of these viruses and closely related sequence variants in northern Spain using RT-PCR and sequencing. Each virus strain and similar sequence variants shared [95 % sequence identity and were collectively designated as virus types. All virus types were relatively common in Spain, with estimated prevalence of 18.5 %, 8.9 % and 16.3 % for FcMV1, FcMV2-1 and FcMV2-2, respectively.

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