The new genes regulated here may be useful against other Fusarium races.Ĭitation: Caballo C, Castro P, Gil J, Millan T, Rubio J, Die JV (2019) Candidate genes expression profiling during wilting in chickpea caused by Fusarium oxysporum f. Our study provides new insight into the molecular defence against Fusarium race 5 and demonstrates that development of NILs is a rich resource to facilitate the detection of candidate genes. Their possible functions in the molecular defence of chickpea is discussed. A cluster of 12 genes were induced by the resistant NIL at 24 hpi, whereas a second cluster contained 9 genes induced by the susceptible NIL at 48 hpi. Qualitative differences occurred during the timing of regulation. We used a pair of near-isogenic lines (NILs) differing in their sensitivity to Fusarium race 5 (resistant vs susceptible) to monitor the transcriptional changes over a time-course experiment (24, 48, and 72 hours post inoculation, hpi). To gain a better understanding of this genomic region, we used a transcriptomic approach based on quantitative real-time PCR to analyze the expression profiles of 22 selected candidate genes. Recently, the region responsible for resistance race 5 has been delimited within a region on chromosome 2 that spans 820 kb.
oxysporum race 5 is the most important race in the Mediterranean basin. Chickpea production may be seriously threatened by Fusarium wilt, a disease caused by the soil-borne fungus Fusarium oxysporum f.