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Root-knot nematodes (RKN) represent extensive challenges to Cucurbitaceae crops. However,  Cucumis metuliferus  ( Cm ) is known to be resistant to  Meloidogyne incognita  ( Mi ) infections. Thus, analysis of differentially expressed genes may lead to a comprehensive gene expression profiling of the incompatible  Cm - Mi  interaction. In this study, the time-course transcriptome of  Cm  against  Mi  infection was monitored using RNA-Seq. More than 170000 transcripts were examined in  Cm  roots, and 2430 genes were subsequently identified as differentially expressed in response to  Mi  infection. Based on function annotation and orthologs finding, the potential mechanism of transcriptional factor, cytoskeleton, pathogen-related genes and plant hormone were assessed at the transcription level. A comparison of gene expression levels between  Mi -infected  Cm  and cucumber plants revealed that cytoskeleton-related genes are key regulators of  Cm  resistance to  Mi . We herein discuss the dual nature of cytoskeleton-related genes in the susceptibility and resistance of plant hosts to  Mi . Our observations provide novel insights into the responses of  Cm  to  Mi  at the transcriptome level. The data generated in this study may be useful for elucidating the mechanism underlying resistance to RKNs in cucurbitaceous crops.

scientific reports

Transcriptome profiling of Cucumis metuliferus infected by Meloidogyne incognita provides new insights into putative defense regulatory network in Cucurbitaceae