diversidade genética de begomovírus em cultivos de tomateiro no centro-oeste paulista genetic diversity of begomoviruses infecting tomato from são paulo midle-west
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ID: 148363
2007
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Abstract
A diversidade genética de vírus pertencentes ao gênero Begomovirus em tomateiro (Lycopersicon esculentum Mill) foi analisada em regiões produtoras do Centro-Oeste paulista. No período de janeiro de 2003 a fevereiro de 2004, cento e sessenta e seis amostras de tomate foram coletadas e a presença de begomovírus observada em 60% das amostras, por PCR, utilizando-se oligonucleotídeos universais para o gênero Begomovirus. O sequenciamento direto do produto de PCR de 16 dessas amostras indicou a possível presença do Tomato severe rugose virus (ToSRV), Sida mottle virus (SiMoV-[BR]) e da espécie tentativa Tomato yellow vein streak virus (ToYVSV-[BR]). Em duas amostras foi detectada uma possível nova espécie de begomovírus. A presença do ToSRV e do SiMoV ainda não havia sido verificada em tomateiro no estado de São Paulo. Estes resultados indicam a existência de diversidade de espécies de begomovírus infectando o tomateiro nesta região, servindo como um alerta para melhoristas que trabalham na busca de fontes de resistência a esse importante grupo de patógenos.
The genetic variability of viruses belonging to the Begomovirus genus infecting tomatoes (Lycopersicon esculentum Mill) on field areas from the mid-western region of São Paulo state was evaluated. From January 2003 to February 2004, one hundred and sixty-six tomato samples were collected and the presence of begomoviruses detected on 60% of the samples by PCR, using universal primers for the genus. Direct sequencing of PCR products of 16 selected samples indicated the possible presence of Tomato severe rugose virus (ToSRV), Sida mottle virus (SiMoV-[BR]) and the tentative species Tomato yellow vein streak virus (ToYVSV-[BR]). A possible new species of begomovirus was detected in two samples. The presence of ToSRV and SiMoV had not yet been reported in São Paulo state. These results indicate the existence of genetic diversity of begomovirus species infecting tomatoes in this area, and serve as an alert for breeders searching for resistance against this important group of pathogens.
The genetic variability of viruses belonging to the Begomovirus genus infecting tomatoes (Lycopersicon esculentum Mill) on field areas from the mid-western region of São Paulo state was evaluated. From January 2003 to February 2004, one hundred and sixty-six tomato samples were collected and the presence of begomoviruses detected on 60% of the samples by PCR, using universal primers for the genus. Direct sequencing of PCR products of 16 selected samples indicated the possible presence of Tomato severe rugose virus (ToSRV), Sida mottle virus (SiMoV-[BR]) and the tentative species Tomato yellow vein streak virus (ToYVSV-[BR]). A possible new species of begomovirus was detected in two samples. The presence of ToSRV and SiMoV had not yet been reported in São Paulo state. These results indicate the existence of genetic diversity of begomovirus species infecting tomatoes in this area, and serve as an alert for breeders searching for resistance against this important group of pathogens.
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cotrim2007summadiversidade
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| Authors | ;Marco Antonio de Andrade Cotrim;Renate Krause-Sakate;Nobuioshi Narita;Francisco Murilo Zerbini;Marcelo Agenor Pavan |
| Journal | research on chemical intermediates |
| Year | 2007 |
| DOI |
10.1590/S0100-54052007000300017
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