A Rapid Disease Resistance Breeding in Tomato (Solanum lycopersicum L.)

Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestans

“…The oomycete P. infestans belongs to the Peronosporaceae family and has large economical relevance (Kamoun et al, 2015). It was the cause of the Irish potato famine, and it causes significant losses as late blight pathogen on tomatoes and other Solanaceae species (Kaushal et al, 2020). It was one of the first oomycetes to have its genome sequenced (Haas, 2009), making it one of the best studied oomycetes at the genomic level.…”

Screening of pepino (Solanum muricatum) and wild relatives against four major tomato diseases threatening its expansion in the Mediterranean region

“…All of the pepino wild relatives selected for this study, with the exception of S. canense and S. fraxinifolium , are cross‐compatible with the cultivated pepino, producing fertile interspecific hybrids (Prohens, Anderson, Rodríguez‐Burruezo, & Nuez, 2003; Rodríguez‐Burruezo et al, 2011), and so, suitable to transfer the desired traits from the wild to the cultivated background. By incorporating wild species in the materials screened, we tried to mimic the approach used in tomato, where the majority of the disease resistance genes incorporated nowadays in the high performing tomato commercial cultivars come from its wild genepool (Kaushal et al, 2020). In this way, resistance genes, I‐2 and Ve‐2 , found, respectively, in the S. lycopersicum × S. pimpinellifolium hybrid PI126915 and in S. lycopersicum accession Peru Wild, that confers resistance against FOL race 2 and VE (Lee et al, 2015; Stall & Walter, 1965) have been introgressed to modern commercial tomato varieties.…”

Tomato late blight yield loss assessment and risk aversion with resistant hybrid

“…Arka Rakshak was chosen to minimize the effect of other diseases on yield loss, which might occur even with pesticide usage. The third hybrid chosen was Arka Abhed (H-397), which has disease resistance to tomato leaf curl disease (Ty-2+Ty3), bacterial wilt (Bwr.12), early blight and late blight (Ph-2 + Ph-3) and has field tolerance to bipartite Tomato leaf curl New Delhi virus (ToLCNDV) (Kaushal et al, 2020). Arka Abhed was included in the experiment, to test the relative efficacy of this hybrid to be adopted as a strategy against this disease risk to get assured yield in conditions of late blight epidemics.…”