{
    "species_prefixes": [
        ""
    ], 
    "primary_contigs": [
        "chr1", 
        "chr10", 
        "chr11", 
        "chr12", 
        "chr13", 
        "chr14", 
        "chr15", 
        "chr16", 
        "chr17", 
        "chr18", 
        "chr19", 
        "chr2", 
        "chr20", 
        "chr21", 
        "chr22", 
        "chr3", 
        "chr4", 
        "chr5", 
        "chr6", 
        "chr7", 
        "chr8", 
        "chr9", 
        "chrX", 
        "chrY"
    ], 
    "non_nuclear_contigs": [
        "chrM"
    ]
}