Figure legends
Fig. 1 The phylogenetic tree of M. graminicola population in
China based on the COI gene. The mtCOI sequences were imported
into MAFFT for multiple sequence matching, and then the compared
sequences were imported into Gblock of PhyloSuite software for trimming,
and the optimized data were used for optimal model selection by
ModelFinder software. Bayesian inference with GTR+F+G4 model for
mtCOIsequence was conducted in MrBayes 3.2.6 plugin in PhyloSuite.
Fig.2 Histogram of haplotype frequencies in each M. graminicolagroups.
Fig. 3Median-Joining haplotype network of 54 M. graminicolapopulations based on mtCOI gene using NETWORK software 5.0. Each
numbered circle (Hap1-Hap15) represents an unique haplotype, and the
size of the circle is proportional to the overall frequency of each
haplotype in the entire sample of the species. Each line connecting the
haplotypes refers to a mutational step. Marks on the lines indicate the
number of steps. Colors correspond to different sampling locations and
names are given in abbreviations by initials of the group.
Fig 4 Correlation between genetic distance and geographical distance in
the M. graminicola populations based on mtCOIIgene.Genetic distance and geographical distance of the populations are
listed in Appendix 1 and Appendix 2, respectively.
Table 1Meloidogyne graminicola samples obtained fromOryzasativa growing areas of China