Comparative proteomic analysis of the response of fibrous roots of nematode-resistant and -sensitive sweet potato cultivars to root-knot nematode Meloidogyne incognita

The Defense Response Involved in Sweetpotato Resistance to Root-Knot Nematode Meloidogyne incognita: Comparison of Root Transcriptomes of Resistant and Susceptible Sweetpotato Cultivars With Respect to Induced and Constitutive Defense Responses

“…According to the Bioenergy Crop Research Center and our previous study on Korean sweetpotato accessions maintained in South Korea ( Choi et al, 2006 ; Lee et al, 2012 ; Ha et al, 2017 ), cultivars DHM, SHM and YM are highly sensitive to RKNs, specifically M. incognita , whereas DJM, PWM and JHM are highly resistant. Therefore, we compared the resistance of SCs and RCs to M. incognita by measuring nematode egg mass formation after infestation under greenhouse conditions.…”

“…However, the molecular mechanisms of nematode resistance in sweetpotato are poorly understood. Although multiple resistance genes involved in qualitative response to nematode infection have been discovered in sweetpotato through transcriptome, proteome and transgenic analyses, the exact function and mode of action of these genes remain unknown ( Fan et al, 2015 ; Zhai et al, 2016 ; Ha et al, 2017 ; Lee et al, 2019 ). Here, we performed a comprehensive analysis of gene expression in three RCs and three SCs of sweetpotato before and after infection with M. incognita infection to characterize induced and constitutive defense responses.…”

“…Previously, we reported the proteome and transcriptome profiling of two sweetpotato cultivars, namely JHM and YM, at different temporal points after infection with the RKN M. incognita ( Ha et al, 2017 ; Lee et al, 2019 ). The results showed that JHM was more resistant to RKN infection than YM when plants were cultivated for 50 days in a growth chamber and 90 days under greenhouse conditions.…”

“…Sweetpotato cultivars show differences in their susceptibility and resistance to RKNs, which can be exploited to reveal the genes and mechanisms responsible for resistance to RKN. We previously conducted proteome and transcriptome profiling of two sweetpotato cultivars, Yulmi and Juhwangmi, with contrasting responses to infection with M. incognita ( Ha et al, 2017 ; Lee et al, 2019 ). Recently, we identified and studied the responses of candidate genes to RKN infection in these two cultivars ( Sung et al, 2019 ; Lee et al, 2020 ).…”

Comparative proteomic analysis of the sweetpotato provides insights into response mechanisms to Fusarium oxysporum f. sp. batatas

“…Comparative proteomic analysis was conducted to investigate the mechanisms of response to infectious pathogens in a range of crops such as rice, alfalfa, and peanut [8][9][10] . In sweetpotato, proteomics comparisons were performed to understand the differences between pencil and storage roots, light orange-and purple-fleshed storage roots, contrasting ecotypes, and how the crop responds to drought stress and root-knot nematode [11][12][13][14][15] . However, the differential proteomics of sweetpotato with different resistance response to Fob resistance remains unclear.…”