diff --git a/nextclade/datasets/all/reference.fasta b/nextclade/datasets/all/reference.fasta
index 715fbf24..08495c13 100644
--- a/nextclade/datasets/all/reference.fasta
+++ b/nextclade/datasets/all/reference.fasta
@@ -1,2 +1,2 @@
->Reconstructed root sequence of https://nextstrain.org/dengue/all/genome
+>Reconstructed_root_sequence_of_https_nextstrain_org_dengue/all/genome
 AGTTGTTAGTCTACGTGGACCGACAAGGACAGTTTCGAATCGGAAGCTTGCTTAACGTAGTTCTAACAGTTTTTTTAATTAGAGAGCAGATCTCTGAGATGAACAACCAACGGAAAAAGGCGGGAAAACCGCCTTTCAATATGCTGAAACGCGAGAGAAACCGCGTGTCAACTGTACAACAGTTGGCGAAGAGATTCTCAATAGGATTGCTGTAAGGGCAAGGACCATTAAAATTGGTTATGGCTTTCATAGCATTCCTACGATTCCTAGCCATCCCACCAACAGCAGGGATTTTGAAAAGATGGGGAACATTCAAGAAGTCTAAGGCTATCAAGGTACTGAGAGGATTCAGGAAGGAGATCGGAAGCATGCTGAACATTTTGAACAGGAGAAAAAGAACAGCAATCATTCTCATGATGCTGATTCCAACAGTAATGGCGTTCCATTTGACCACACGAGATGGAGAGCCGCACATGATTGTGAGCAAGCATGAAAGAGGAAAATCCCTTCTGTTTAAGACAGCGGATGGAATCAACATGTGCACCCTCATTGCCATGGATCTGGGTGAGTTGTGTGAGGACACAATCACGTACAAATGCCCCCTTCTCACCGAAACCGAACCAGAAGACATTGACTGCTGGTGCAATCCCACGTCCACATGGGTGACCTATGGGACGTGTACCCAAACTGGAGAACACAGACGAGAGAAAAGATCAGTGGCACTAGCCCCACATGTGGGAATGGGACTGGAAACAAGAACTGAAACATGGATGTCATCAGAAGGAGCTTGGAAACAAGCCCAGAGAGTAGAGACTTGGATTCTGAGACACCCAGGATTCACGATAATGGCAGTATTTCTGGCATACACCATAGGAACAACATATATCCAGAGAGTCGTTATTTTTATCCTACTGATGCTGGTCGCCCCATCCATGACAATGCGATGCGTGGGAGTAGGAAACAGAGACTTTGTGGAAGGAGTTTCAGGAGGAACGTGGGTTGACGTGGTGCTAGAACATGGAAGTTGTGTCACAACCATGGCAAAGAACAAACCAACACTGGACTTTGAACTGATGAAGACAGAAGCCAAACAACCGGCCACACTAAGGAAATTCTGCATTGAAGCTAAAATAACCAACACAACAACAGAATCAAGATGTCCAACACAAGGGGAACCCAATCTAGTAGAGGAGCAGGACCAGAAGTTCGTCTGCAAACAAACGATGGTGGACAGAGGATGGGGCAATGGCTGTGGTTTGTTTGGAAAAGGAGGCATTGTGACATGTGCGAAGTTTACATGCTTGAAGAAAATAGAAGGAAAAGTGGTGCAACCTGAAAACTTAGAATACACCGTGGTCATAACAGTCCACACAGGAGACGAACACGCAGTGGGAAATGACACAACAAAACATGGAATGACGGCCAAGATAACACCCCAGGCTTCCACCGCAGAAGCTAAACTGACAGACTATGGAACTCTCACGCTGGATTGCTCACCAAGAACAGGTCTCGACTTTAATGAGATGGTCTTGTTGAAAATGAAAAACAAAGCATGGCTTGTACACAGACAATGGTTCCTAGACCTACCTCTACCATGGACATCAGGAGCTGACACATAAGAAGCAAATTGGAACCAGAAAGAGATGCTGGTGACATTCAAAAATCCTCATGCAAAGAAACAGGATGTAGTCGTCCTAGGATCCCAAGAAGGAGCCATGCACACAGCACTCACAGGAGCTACAGAAATCCAAACGTCAGGAGGAAACTTAATGTTTGCAGGACACCTGAAGTGCAGACTGAGAATGGACAAACTGAAACTCAAAGGGATGTCATACGCGATGTGCACAGGAAAGTTCAAAATTGAGAAAGAAATGGCAGAAACACAGCATGGAACAATAGTCATTAAGGTTAAGTATGAAGGAGATGGTGCACCATGCAAGATCCCTTTTGAGATAAAGGATGTGAAAAAGAAAAATGTCATTGGGCGACTGATCACAGCCAACCCAATAGTCACAGAGAAAGACAGTCCAGTCAACATTGAAGCAGAACCTCCTTTTGGGGACAGCTACATCGTGATAGGAGTAGGAGAAAGAGCATTGAAACTCAACTGGTTCAAGAAAGGAAGCTCCATTGGGAAAATGTTTGAGGCAACTGCCAGAGGAGCAAAAAGAATGGCCATCTTGGGAGACACAGCCTGGGATTTTGGATCTGTAGGAGGAGTGTTCACATCAGTAGGAAAGGCGGTGCACCAGGTTTTTGGAACTGTCTATGGGGCTATGTTTAGCGGAGTCTCATGGACCATGAAAATCCTAATAGGGGTTCTCATAACATGGATAGGAATGAATTCAAGAAGCACTTCCCTGTCAATGACATGCATAGCAGTAGGAATCGTCACACTGTACCTGGGAGTCATGGTGCAGGCGGACATGGGTTGTGTTGTGAACTGGAAAGGCAAAGAACTGAAATGTGGAAGTGGAATTTTTGTCACTGACAACGTGCACACTTGGACAGAACAATACAAATTCCAACCAGACTCCCCAACAAGACTGGCGTCAGCCATTCCGAAAGCTCATGAGGAGGGAGTCTGTGGAATCCGATCAGCAACAAGACTGGAGAATCTCATGTGGAAGCAAATAACAAATGAATTGAACCACATCCTATGGGAAAATGAAATCAAACTAACTGTAGTGGCAGGAGACATTAAAGGAATCTTGGAGAAAGGGAAAAGAACACTTACACCTCAACCCATTGAGCTGAAATATTCATGGAAAACATGGGGAAAAGCAAAAATACTCACAGCAGAAGTACAAAATAACACCTTCCTCATAGACGGTCCAGACACACCAGAATGCCCTAATGACCAAAGAGCATGGAATTTTCTGGAAGTTGAGGACTATGGATTTGGAATCTTCACGACCAACATATGGCTGAAATTGCGAGAAGAGTACACCGAAGTGTGTGACCACAGGCTAATGTCAGCAGCCATCAAGGACAACAGGGCCGTCCATGCTGACATGGGCTATTGGATAGAAAGCGCAAAGAATGAGACCTGGAAGATAGAGAAAGCATCCTTCATTGAAGTTAAAACCTGCCTCTGGCCAAAATCACACACTCTTTGGAGCAATGGAGTGCTAGAAAGTGAAATGATAATTCCAAAGATTTTTGCTGGACCAATTTCACAGCACAACTACAGACCAGGCTATTACACACAAACAGCAGGACCATGGCACTTAGGCAAATTGGAGATGGACTTTGATTTTTGTGAAGGAACCACAGTTGTAGTGACTGAGGACTGTGGAAATAGAGGCCCATCTTTGAGAACAACCACAGCCTCAGGAAAACTGATAACTGAATGGTGCTGCCGATCTTGCACATTACCTCCCCTAAGATACATAGGAGAGGATGGATGCTGGTATGGGATGGAAATCAGACCCTTGAATGAGAAAGAAGAGAACCTGGTCAAGTCATTGGTCACAGCCGGGCATGGAAAGGTGGACAATTTTTCAATAGGACTCTTGTGCATGGCATTGTTCATGGAAGAGGTGCTGAGAACCAGAGTTGGCAGAAAACACATGATATTAGTAGTAGTGGTTACCTTCGTGACCCTCATCACAGGGAATATGACATGGAGAGACCTGGTAAGAGTACTTATCATGGTGGGAGCCACTATGTCTGATAGAATGGGGGGCGTGACTTACCTAGCTTTAATGGCAGCTTTCAAAATGAGACCAATCTTCGCAGTGGGATTGTTCTTGAGGAAACTGACTTCAAGAGAAATAATACTGATGACAATAGGAATGGCCCTGGTAACATCGTTCCAAATACCAGATGCCATTGTGGAACTGACTGATGGAATAGCATTGGGGATAATGGTGCTTAAAATGGTGACACATTTTGAAAAATACCAGTTGGGAGCGACCATCCTGTCCTTGACGTGCATCAAAACAACTATGACATTGCATAATGCATGGAAAACAATCACCATTATATTGGCAGTAGTTTCTCTTTTCCCATTGTGCCTGACTTCCTCCCTTCAAAAACAGACAGATTGGATACCAATAACATTGACAATCATAGGAGTCAAACCACTACCCATGTTTCTAATAACTTTAACAAAAACCAGCAAAAAAAGAAGTTGGCCTCTCAATGAGGGCATTATGGCTGTTGGAATGGTGAGCATTCTAGCAAGTTCTCTCCTAAAGAATGATGTTCCCATGGCTGGACCATTAGTGGCTGGAGGCTTGCTCATAGCGTGCTACGTGATAACTGGCAGCTCAGCAGACTTGTCACTGGAGAAAGCCGCCGATGTGAAATGGGAAGAAGAGGCAGAGATATCAGGAGCCAGCCCAATCATATTAGTCACAGTAGAAGAAGATGGTACCATGTCAATAAAGGATGAAGAGGAAGAGAACACACTAACCATACTCATAAAAACAGCACTGCTAGTAGTGTCAGGCCTCTTCCCATTGTCAATACCAGTCACAATGGCGGTATGGTACATGTGGCAAATGAAAAAACAAAGATCCGGAGTGCTGTGGGACGTCCCCTCACCCCCAGCAGTGGAAAAAGCTGAACTGGAAGATGGAGTCTATAGAATCAAGCAAAGAGGGATTTTTGGGAAATCCCAAGTTGGAGTTGGAGTATACAAAGAAGGAGTATTCCACACAATGTGGCACGTCACAAGAGGAGCTGTCCTCATGCATAAAGGGAAGAGACTGGAACCATCTTGGGCTGACGTCAAGAAAGACTTGATATCATATGGAGGAGGTTGGAGGCTTGAAGGAAAATGGAAAAAAGGAGAAGAAGTGCAGGTCTTGGCCGTAGAACCTGGGAAAAATCCAAAAAACGTCCAAACAAAACCTGGCCTTTTCAAGACCACTACAGGAGAAATAGGAGCCGTAGCCCTGGACTTCAAACCTGGAACATCAGGATCTCCCATCATTAACAAAAAAGGAAAAGTTGTGGGTCTCTATGGAAATGGAGTGGTTACAAAAAGTGGAGCCTATGTCAGTGCCATAGCGCAAACTGAAAAAATTGAAGAGCCGAATCCAGAGATTGAAGATGACATCTTTAGAAAGAAAAGATTAACCATAATGGACCTACATCCAGGAGCGGGAAAGACAAAAAGATATCTCCCAGCCATAGTCAGAGAGGCCATAAAAAGAAGCCTGAGAACTCTAATCTTGGCTCCCACAAGAGTGGTGGCAGCTGAAATGGAAGAAGCCCTAAGAGGACTCCCAATAAGTTATCAGACCCCAGCCATGAAGGCTGAACACACAGGAAGGGAGATTGTAGACCTAATGTGCCATGCCACTTTCACCATGAGACTGCTGTCACCAATCAGGGTTCCAAATTACAACCTGATAATAATGGATGAAGCACATTTCACAGACCCAGCCAGCATAGCGGCTAGAGGATACATCTCAACCCGAGTGGAAATGGGAGAGGCAGCTGCAATTTTTATGACAGCCACTCCCCCAGGAACGACAGATCCCTTTCCTCAGAGCAACGCCCCAATCAAAGATGAAGAAAGAGAAATTCCTGAACGCTCATGGAATTCAGGATATGAATGGATCACAGATTTTCAAGGGAAGACAGTGTGGTTTGTTCCAAGCATAAAAGCCGGAAATGACATAGCAAACTGCTTGAGAAAAAATGGAAAAAGGGTGATTCAACTGAGTAGGAAAACCTTTGACACAGAATATCCAAAAACAAAAATCAATGACTGGGACTTTGTGGTCACAACAGACATTTCCGAAATGGGAGCCAATTTCAAAGCTGAGAGAGTGATAGACCCAAGGAGATGCCTGAAGCCAGTTATACTGACAGATGGTCCAGAGCGGGTGATTCTGGCAGGACCCATGCCAGTGACCCTAGCAAGTGCTGCCCAAAGAAGAGGGAGAATAGGAAGGAACCCAAAAAAAGAAAATGACCAGTACATTTACATGGGAGAGCCTCTAAAAAATGATGAAGACCATGCTCACTGGACAGAAGCAAAGATGCTCCTTGACAACATCAACACACCAGAAGGGATCATCCCAACCCTGTTTGAACCAGAAAGGGAAAAGACTGAAGCCATAGACGGTGAATACCGCCTGAGAGGGGAAGCAAGGAAAACCTTTGTGGAACTAATGAGAAGAGGAGACCTACCAGTTTGGCTGGCCTACAAAGTAGCTTCAGAAGGCATCAAATACACAGACAGAAGGTGGTGCTTTGATGGAGAAAGGAACAATCAAATTTTGGAGGAGAACATGGAAGTGGAAATCTGGACAAAAGAAGGAGAAAGGAAGAAATTAAGACCTAGATGGTTGGATGCTAGAACTTATTCTGACCCACTGGCACTAAAGGAATTCAAGGAGTTTGCAGCTGGAAGAAAGTCCATAACCCTTGACCTAATAACAGAAATAGGTAGACTGCCAACTTACTTGACCCACAGGGCCAGAAATGCCCTGGACAACTTGGTCATGCTGCACACGACAGAAAAAGGAGGAAGGGCCTACAAACATGCTCTGAATGAACTACCAGAAACCCTGGAAACATTCATGCTCCTAGCTCTGTTGGCTGCGATGACAGGAGGAATCTTTCTGTTCTTGATGTAAGGAAGAGGTATAGGGAAAATGTCCATGGGACTGATCTGCATAATGGCAGCCAGCGGCCTGCTATGGATGGCAGAAATCCAGCCCCATTGGATAGCGGCCTCAATAATACTGGAGTTTTTTCTCATGGTACTGCTTATTCCAGAACCAGAAAAGCAGAGAACTCCCCAGGACAACCAATTGACCTATGTCGTGATAGCCATCCTCACAATGGTTGCAACAATAGCAGCCAATGAAATGGGATTGTTGGAAAAAACAAAGAAAGATCTTGGGTTTGGCCATGTAGCAACTGAAAATACAATTCTGGACGTAGATCTACGTCCAGCATCAGCATGGACACTCTATGCAGTGGCCACAACAATTATCACACCAATGTTGAGACACACCATAGAAAACTCCTCAGCAAATGTGTCCCTGACAGCCATTGCCAACCAGGCAGCGGTCTTGATGGGTCTTGGAAAAGGATGGCCATTATCGAAAATGGACATAGGAGTTCCACTTCTCGCCTTGGGATGCTATTCACAAGTGAACCCAATAACTCTCACAGCAGCACTACTTTTGCTAGTGGCACATTATGCCATAATAGGTCCAGGACTGCAAGCAAAAGCCACTAGAGAAGCTCAGAAAAGGACAGCAGCTGGAATCATGAAGAATCCAACGGTGGATGGGATAACAGTAATAGACCTAGATCCAATACCCTATGATCCAAAATTTGAAAAGCAGTTAGGACAAGTAATGCTCCTGGTCCTTTGTGCAGCACAGCTACTGTTGATGAGAACTACATGGGCTTTGTGTGAAGCCTTAACCCTAGCCACAGGACCAATATCAACACTGTGGGAAGGAAATCCAGGGAAATTCTGGAACACAACGATAGCTGTGTCCATGGCTAACATTTTCAGAGGGAGTTATTTGGCCGGAGCTGGACTTGCTTTTTCTATCATGAAGAATGCAGGAAGCGCAAGGAGAGGAACTGGGACCATAGGAGAAACACTGGGAGAAAAATGGAAAAGACAACTAAACCCATTGGGCAGGAAAGAATTCGAAATATACAAGAAAAGTGGAATTCTAGAAGTGGACAGAACCGAAGCCAAAGAAGGCTTGAAAAGAGGAGAAACAACCCACCATGCCGTGTCGAGAGGCTCCGCAAAACTGAGATGGTTCGTTGAGAGAAACATGGTCAAACCAGAAGGGAAAGTCGTAGACCTTGGTTGTGGAAGAGGAGGCTGGTCATATTACTGTGCGGGACTGAAGAATGTGACAGAAGTGAAAGGATACACAAAAGGAGGACCAGGACATGAAGAACCAATCCCTATGTCTACATATGGATGGAACCTAGTCAAGCTTCAGAGTGGAGTGGATGTGTTCTTCACTCCACCTGAGAAATGTGACACCCTGTTGTGTGACATTGGGGAATCATCACCAAATCCAACAGTAGAAGAAGGAAGAACATTAAGAGTTCTGAAGATGGTGGAACCATGGCTCAACAACAACACTCAATTTTGCATAAAAGTTCTCAACCCCTACATGCCAACAGTCATAGAAAAACTGGAAAAACTACAAAGGAAACATGGAGGAATCCTTGTGAGAAATCCACTCTCACGAAATTCCACCCATGAGATGTACTGGGTGTCCAATGCTTCAGGAAACATTGTGTCTTCAGTGAACATGATATCAAGAATGTTGCTGAACAGATTCACAATGAGACACAGGAAACCCACTTATGAGAAAGACGTGGACCTTGGAGCTGGAACACGAAATGTCGCAATTGAAACAGAAACACCAAACATGGATATCATTGGGAAAAGGATAGAGAAAATAAAAGAAGAGCATAAAACAACATGGCACTATGATCAGGACAATCCATACAAAACATGGGCTTACCATGGAAGCTATGAAGCCAAACCGACAGGATCAGCATCATCCATGGTGAATGGAGTGGTGAGACTGCTGACAAAACCCTGGGACGTGATTCCCATGGTGACACAGATGGCAATGACAGACACAACTCCCTTTGGACAACAGAGAGTTTTTAAAGAGAAAGTGGACACGAGAACACCAAAACCAAAACCAGGCACAAGAAAAGTTATGAAGATCACAGCCGAGTGGCTTTGGAGATTCCTTGGAAGGAAAAAAAAACCCAGAATGTGCACAAGAGAAGAGTTCACAAAAAAAGTTAGAACCAACGCAGCTATGGGCGCCGTGTTCACTGATGAGAACAAATGGAACTCAGCAAGTGAAGCTGTTGAAGACGAACGGTTTTGGGAACTGGTGGACAAAGAAAGGGATCTTCACCAAGAAGGAAAGTGTGAAACGTGTGTCTACAACATGATGGGAAAAAGAGAGAAGAAACTAGGAGAGTTTGGCAAAGCAAAAGGCAGCAGAGCAATATGGTACATGTGGCTGGGAGCACGCTTCCTAGAGTTTGAAGCCCTAGGTTTCTTGAATGAAGACCACTGGTTCTCCAGAGAAAATTCACTGAGTGGAGTGGAAGGAGAAGGACTGCACAAGCTGGGATACATCCTAAGAGACATAAACAAGAAAGAAGGAGGAGCAATGTATGCTGATGACACAGCTGGTTGGGACACAAGAATCACAGAAGATGACCTGCAGAATGAAGAAATGATCACAGACCAAATGGACCCTGAACATAAGAAATTGGCCAAGGCCATTTTCAAACTAACATACCAAAACAAGGTGGTGAGAGTCCAAAGACCAACACCAAAAGGCACGGTGATGGATATCATATCCAGGAGAGACCAAAGAGGCAGTGGACAGGTTGGAACTTATGGTCTGAACACTTTCACCAACATGGAAGCACAACTAATCAGACAAATGGAAGGTGAAGGAGTCTTTACACCAAAAGAATTCTAGACCCCACATCTGCTAGAAAAAAGAGTTCAAGAATGGTTGGAAAAACATGGAGTCGAAAGGTTAAAAAGAATGGCAATCAGTGGAGATGATTGTGTGGTGAAACCACTAGATGACAGGTTCGCCACAGCCCTAACAGCTTTGAATGACATGGGAAAGGTTAGGAAAGACATACCGCAATGGGAACCTTCAAAAGGATGGAATGATTGGCAACAAGTGCCTTTCTGCTCCCACCACTTTCATGAGCTGATCATGAAAGATGGTCGCACGCTAGTAGTTCCATGCAGAAACCAAGATGAACTGATAGGTAGAGCCAGAATCTCTCAGGGAGCTGGATGGAGCTTGAGAGAAACAGCCTGTCTGGGGAAGTCTTACGCCCAAATGTGGAGGCTGATGTACTTCCACAGAAGAGATCTGAGGCTGGCGGCCAATGCCATATGTTCAGCAGTTCCAGTACATTGGGTTCCAACAAGCAGAACAACCTGGTCGATCCATGCCCACCATCAATGGATGACAACAGAAGACATGTTTACAGTCTGGAACAGGGTGTGGATAGAGGACAACCCATGGATGGAAGACAAAACTCCAGTCTAATCTTGGGAAGACATACCATACCTAGGGAAAAGAGAAGACCAGTGGTGTGGATCCCTGATTGGCCTAACATCCAGGGCCACCTGGGCAAAGAACATTCAAACAGCCATAAACCAAGTCAGAAGCCTCATTGGGAATGAGGAGTATATAGATTACATGCCATCAATGAAAAGATTCAGGAATGAGGAGGAGAACGAAGGAGTTCTGTGGTAAACAGCAAAAGAAGTCAGGCATAAAAGAAGTCAGGCCACTAATGCCACGGCTTGAGCAAACCGTGCTGCCTGTAGCTCCACCAAAAAGGGGAGGTGTAAAAAAACCCCGGGAGGCCACAAACCATGGAAGCTGTACGCATGGTGTAGTGGACTAGCGGTTAGAGGAGACCCCTCCCATGACAGACAAAACGCAGCACAAGGGGGCCCAAAGCCAGGAGGAAGCTGTACTCTCGTTGGAAGGACTAGAGGTTAGAGGAGACCCCCCCAAAACAAAAACAGCATATTGACGCTGGGAAAGACCAGAGATCCTGCTGTCTCCTCAGCATCATTCCAGGCACAGAACGCCAGAAAATGGAATGGTGCTGTTGAATCAACAGGTTCT