QTL-Seq Identifies Genomic Regions Associated with Resistance to Bipolaris oryzae and Their Association with Defense Related Enzyme Activity in Rice

doi:10.1016/j.rsci.2025.08.012

摘要/Abstract

. [J]. Rice Science, 2026, 33(1): 15-20.

Fig. 1. QTLs for brown spot resistance on rice chromosomes 4, 6, 8, and 12 identified in F2:3 population of PAU 10845-1-1-1-1 (PMS-18-B) × RP patho-17 (RP Path 77) using QTLseqr and activity of different defence enzymes in parental lines (PMS-18-B and RP Path 77) and selected subsets of resistant (F3-21 and F3-33) and susceptible progeny lines (F3-4 and F3-18). A, Distribution of Δ SNP index with significant thresholds i.e., confidence intervals (P < 0.05 in red and P < 0.01 in blue). B and C, Distribution of genome-wide G statistics (G’) value and -log10(P-value). The red line in each chart indicated the significance threshold for false discovery rate (FDR, 0.01) and genomic region where the G’ value or -log10(P-value) crosses the threshold value was considered as significant QTL. D, Peroxidase (POD), polyphenol oxidase (PPO), and phenylalanine ammonia lyase (PAL) activity are plotted on left y-axis, and catalase (CAT) and disease score (DS) are plotted on right y-axis.

参考文献 38

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