Evaluation of seven Lycopersicon species for resistance to tomato spotted wilt virus (TSWV)

Autor: S. J. Scott, R. C. Gergerich, M. R. Stevens
Rok vydání: 1994
Předmět:
Zdroj: Euphytica. 80:79-84
ISSN: 1573-5060
0014-2336
Popis: One hundred eighty-eight accessions of Lycopersicon cheesmanii, L. chilense, L. chmielewskii, L. hirsutum, L. parviflorum, L. pennellii, and L. peruvianum were screened for resistance to three isolates of tomato spotted wilt virus (TSWV). All plants in an accession were initially screened for resistance to TSWV using isolate 85–9 from Arkansas. Visual symptoms were used to cull obviously infected plants, followed by enzyme-linked immunosorbent assay (ELISA) to identify uninfected plants. Cuttings were taken from uninfected plants in the first screening and the resulting plants were inoculated with isolates Glox and T-2 from Texas and Hawaii, respectively. No resistance was identified in L. cheesmanii, L. chmielewskii, L. hirsutum, L. parviflorum, and L. pennellii. However, 33 of 63 L. chilense accession produced 91 of 1268 plants that were uninfected with isolate 85–9 and 20 accessions that produced 40 of 257 plants that were not infected with any of the isolates. After screening with isolate 85–9 9 of 12 L. peruvianum accessions tested had 38 plants uninfected and 8 accessions had 25 plants that were not infected with any of the isolates.
Databáze: OpenAIRE
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