Identification of CNGCs in Glycine max and Screening of Related Resistance Genes after Fusarium solani Infection

Abstract

Cyclic nucleotide-gated channels (CNGCs), non-selective cation channels localised on the plasmalemma, are involved in growth, development, and regulatory mechanisms in plants during adverse stress. To date, CNGC gene families in multiple crops have been identified and analysed. However, there have been no systematic studies on the evolution and development of CNGC gene families in legumes. Therefore, in the present study, via transcriptome analysis, we identified 143 CNGC genes in legumes, and thereafter, classified and named them according to the grouping method used for Arabidopsis thaliana. Functional verification for disease stress showed that four GmCNGCs were specifically expressed in the plasmalemma during the stress process. Further, functional enrichment analysis showed that their mode of participation and coordination included inorganic ion concentration regulation inside and outside the membrane via the transmembrane ion channel and participation in stress regulation via signal transduction. The CNGC family genes in G. max involved in disease stress were also identified and physiological stress response and omics analyses were also performed. Our preliminary results revealed the basic laws governing the involvement of CNGCs in disease resistance in G. max, providing important gene resources and a theoretical reference for the breeding of resistant soybean.

Comparative Transcriptome Analysis between Resistant and Susceptible Pakchoi Cultivars in Response to Downy Mildew

“…In this study, seven CMLs, two CNGCs, one CDPK, and three WRKYs were identified, which were involved in H. brassicae stress response and differentially expressed in resistant and susceptible materials (Figure 6A). CNGCs were a type of non-specific cation channel, which was an important way for plants to resist against the invasion of pathogens by regulating Ca 2+ influx [34]. Compared with the susceptible materials, we found the expression of CNGC9 and CNGC19 were significantly higher than that in the resistant materials at 12 hpi.…”