diff --git a/test/fixtures/reference/README.md b/test/fixtures/reference/README.md
index 1bca8c115..f6b948dc6 100644
--- a/test/fixtures/reference/README.md
+++ b/test/fixtures/reference/README.md
@@ -20,6 +20,10 @@ Unheadered 2 column TSV file containing genelengths with `gene_name` labels from
 
 Gencode v31 release GTF (or GFFv2) file, subsetted to only contain annotations for `chrY` and `chrM`. Gzipped.
 
+## gencode.v50.BCR_ABL1.transcripts.fa.gz
+
+Gencode v50 release protein-coding transcript sequences FASTA, subsetted to only contain sequences from the genes BCR and ABL1. Gzipped.
+
 ## GRCh38.chr1_chr19.dict
 
 Sequence dictionary for GRCh38 reference containing `chr1` and `chr19` only
diff --git a/test/fixtures/reference/gencode.v50.BCR_ABL1.transcripts.fa.gz b/test/fixtures/reference/gencode.v50.BCR_ABL1.transcripts.fa.gz
new file mode 100644
index 000000000..e1dbed572
--- /dev/null
+++ b/test/fixtures/reference/gencode.v50.BCR_ABL1.transcripts.fa.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1f7d5eaacd432840dd78f02fa23bfa43626c1356b2b644fba0c4cb66643bec66
+size 16006