'XM_010928396.1     ' => {
                                   'ambigu' => 156,
                                   'BC11_III_.RG' => 75,
                                   'rc' => 195,
                                   'BC11_II_.RG' => 120
                                 },

##</code><code>##

# Convert this:
values %{$hash_geno_group{$sample_geno_group}{$cds}{"rc"}}

# to this:
my $sample_geno_group_ref = $hash_geno_group{$sample_geno_group};
my $sample_cds = $sample_geno_group_ref->{$cds};
my $sample_rc = $sample_cds->{"rc"};