Molecular markers linked to bacterial wilt (Ralstonia solanacearum) resistance gene loci in eggplant (Solanum melongena L.)

Genetic analysis and identification of SSR marker linked to Phomopsis blight resistance in eggplant (Solanum melongena L.)

“…Similar kind of study was carried out by Toppino et al (2008) to identify the markers associated with the Fusarium resistance trait using BSA in eggplant. Our study is also in line with the reports of Bi‐hao et al (2009) and Pandiyaraj et al (2019) who also carried out BSA to identify the markers associated with the bacterial wilt resistance in eggplant. The strategy, BSA, was also found successful in other solanaceous crops to identify the linked markers to resistance trait (Thakur et al, 2014; Yanping et al, 2014)…”

“…Our study is also in line with the reports ofBi-hao et al (2009) andPandiyaraj et al (2019) who also carried out BSA to identify the markers associated with the bacterial wilt resistance in eggplant. The strategy, BSA, was also found successful in other solanaceous crops to identify the linked markers to resistance trait(Thakur et al, 2014;Yanping et al, 2014) Furthermore, using CIM analysis association of these markers with the resistance trait is measured.…”

“…Pathogen race is an important factor in determining the resistance/susceptibility reaction of plant host. Previously in eggplant, BSA was used to identify the markers putatively linked to yield contributing traits and also to disease resistance of various diseases (Bhanushree et al, 2020; Pandiyaraj et al, 2019; Toppino et al, 2008). In the present study, we followed bulked segregant analysis to identify putatively linked markers to Phomopsis fruit rot resistance.…”

“…BSA is mainly based on the principle of selecting and grouping the plants from segregating populations with extreme phenotypes and testing for the differences in allele frequency between the population bulks. Previously in eggplant, BSA was used to identify the markers putatively linked to yield contributing traits and also to disease resistance of other diseases (Bhanushree et al, 2020; Pandiyaraj et al, 2019; Toppino et al, 2008).…”

Mutations in the SmAPRR2 transcription factor suppressing chlorophyll pigmentation in the eggplant fruit peel are key drivers of a diversified colour palette

“…To dissect this important trait for eggplant genetics and breeding, in this study we have combined classical forward genetics techniques with advanced association and sequencing analyses, using both experimental populations and germplasm materials to identify and validate a candidate gene controlling the synthesis of fruit peel chlorophyll. Up to now, the dissection of complex traits in eggplant has been usually performed using germplasm panels ( Portis et al., 2015 ) or temporary mapping populations, such as F 2 and BC 1 ( Barchi et al., 2012 ; Miyatake et al., 2016 ; Pandiyaraj et al., 2019 ; Bhanushree et al., 2020 ). These populations have the advantage of being easy and fast to develop but are not as powerful as the immortal ones to identify strong associations, candidate genes or causative SNPs, and accumulate fewer genetic recombination events, limiting the resolution for QTL detection ( Arrones et al., 2020 ).…”