Population Genomic Analysis Reveals a Highly Conserved Mitochondrial Genome in Fusarium asiaticum.

摘要: Fusarium asiaticum is one of the pivotal members graminearum species complex (FGSC) causing head blight (FHB) on wheat, barley and rice in large parts Asia. Besides resulting yield losses, FHB also causes accumulation mycotoxins such as nivalenol (NIV) deoxynivalenol (DON). The aim this study was to conduct population studies F. from Southern China through mitochondrial genome analyses. All strains were isolated wheat or several geographic areas seven provinces China. Based location host, 210 isolates selected for next generation sequencing, their mitogenomes assembled by GRAbB annotated explore variability asiaticum. mitogenome proves extremely conserved variation mainly caused absence/presence introns harboring homing endonuclease genes. These variations could be utilized develop molecular markers track trace migrations within between populations. This illustrates how can used genetic analysis. SNP analysis demonstrate occurrence recombination previously found oxysporum implied graminearum. Furthermore, varying degrees diversity showed a high association with different regions well cropping systems. much higher while interspecies intron no evidence gene flow two closely related sexual compatible species.