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- Title
The coat protein gene of tobamovirus P<sub>0</sub> pathotype is a determinant for activation of temperature-insensitive L <sup> 1a </sup>-gene-mediated resistance in Capsicum plants.
- Authors
Matsumoto, Katsutoshi; Sawada, Hiromasa; Matsumoto, Kouhei; Hamada, Hiroyuki; Yoshimoto, Eri; Ito, Takao; Takeuchi, Shigeharu; Tsuda, Shinya; Suzuki, Kazumi; Kobayashi, Kappei; Kiba, Akinori; Okuno, Tetsuro; Hikichi, Yasufumi
- Abstract
Tobamovirus resistance in Capsicum plants, which is mediated by L genes ( L 1 , L 2 , L 3 or L 4 ), is known to be temperature sensitive. However, the L 1a gene, a newly identified tobamovirus resistance gene that is mapped to the L locus, confers temperature-insensitive resistance against the tobamovirus P0 pathotype. To identify the viral elicitor that activates the L 1a -gene-mediated resistance, several chimeric viral genomes were constructed between tobacco mosaic virus-L (P0 pathotype), paprika mild mottle virus-J (P1 pathotype) and pepper mild mottle virus-J (P1,2 pathotype). Infection patterns of these chimeric viruses in L 1a -harboring plants revealed that the L 1a -gene-mediated resistance was activated by the CP of a particular pathotype of tobamovirus, like other L-gene-mediated resistances, but the L 1a -gene-mediated resistance differs from those conferred by other L genes in terms of temperature sensitivity.
- Subjects
TOBAMOVIRUSES; PEPPERS; GENES; GENOMES; TEMPERATURE
- Publication
Archives of Virology, 2008, Vol 153, Issue 4, p645
- ISSN
0304-8608
- Publication type
Article
- DOI
10.1007/s00705-008-0032-y