diff --git a/lib/Canto/Curs/Utils.pm b/lib/Canto/Curs/Utils.pm
index d327f2eb2..5ebd700bc 100644
--- a/lib/Canto/Curs/Utils.pm
+++ b/lib/Canto/Curs/Utils.pm
@@ -44,6 +44,8 @@ use Moose;
 use Clone qw(clone);
 use JSON;
 
+use Scalar::Util qw(looks_like_number);
+
 use Canto::Curs::GeneProxy;
 use Canto::Curs::ConditionUtil;
 use Canto::Curs::MetadataStorer;
@@ -221,10 +223,12 @@ sub _make_metagenotype_details
                            $ontology_lookup, $organism_lookup);
 
   my $metagenotype_display_name =
-    $pathogen_genotype_details{organism}->{full_name} . ' ' .
-    $pathogen_genotype_details{genotype_display_name} . ' / ' .
-    $host_genotype_details{organism}->{full_name} . ' ' .
-    $host_genotype_details{genotype_display_name};
+    $pathogen_genotype_details{genotype_display_name} . ' ' .
+    $pathogen_genotype_details{organism}->{full_name} . ' (' .
+    $pathogen_genotype_details{strain_name} . ') / ' .
+    $host_genotype_details{genotype_display_name} . ' ' .
+    $host_genotype_details{organism}->{full_name} . ' (' .
+    $host_genotype_details{strain_name} . ')';
 
   return (
     pathogen_genotype => \%pathogen_genotype_details,
@@ -237,6 +241,39 @@ sub _make_metagenotype_details
   );
 }
 
+sub _make_extension
+{
+  my $config = shift;
+  my $schema = shift;
+  my $ontology_lookup = shift;
+  my $organism_lookup = shift;
+  my $extension = shift // [];
+
+  for my $and_group (@$extension) {
+    for my $ext_part (@$and_group) {
+      if ($ext_part->{rangeType} &&
+          $ext_part->{rangeType} eq 'Metagenotype') {
+        my $metagenotype_id = $ext_part->{rangeValue};
+        if (looks_like_number($metagenotype_id)) {
+          my $rs = $schema->resultset('Metagenotype')
+            ->search({ metagenotype_id => $metagenotype_id });
+          my $metagenotype = $rs->first();
+          if ($metagenotype) {
+            my %metagenotype_details =
+              _make_metagenotype_details($schema, $metagenotype, $config,
+                                         $ontology_lookup, $organism_lookup);
+            $ext_part->{rangeDisplayName} = $metagenotype_details{metagenotype_display_name};
+            next;
+          }
+        }
+        $ext_part->{rangeDisplayName} = 'Unknown Metagenotype';
+      }
+    }
+  }
+
+  return $extension;
+}
+
 =head2 make_ontology_annotation
 
  Usage   : my $hash = Canto::Curs::Utils::make_ontology_annotation(...);
@@ -400,6 +437,10 @@ sub make_ontology_annotation
   my $completed = defined $evidence_code &&
     (!$needs_with || defined $with_gene_identifier);
 
+  my $extension = _make_extension($config, $schema,
+                                  $ontology_lookup, $organism_lookup,
+                                  $data->{extension});
+
   my $ret = {
     %gene_details,
     %genotype_details,
@@ -426,7 +467,7 @@ sub make_ontology_annotation
     with_gene_id => $with_gene_id,
     taxonid => $taxonid,
     completed => $completed,
-    extension => $data->{extension} || [],
+    extension => $extension,
     is_obsolete_term => $is_obsolete_term,
     curator => $curator,
     status => $annotation->status(),