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Danaus plexippus plexippus (Monarch butterfly, F-2) (Dplex_v4)

Danaus plexippus plexippus (Monarch butterfly, F-2) Assembly and Gene Annotation

About Danaus plexippus

Each autumn millions of the migratory Monarch Butterfly, Danaus plexippus, undergo a long-distance migration of up to 4,000 km from eastern North America to their wintering grounds in central Mexico. During this migration, the Monarch uses a time-compensated sun compass to allow them to maintain a southerly direction. In addition to the great opportunities for studying circadian clockwork and the molecular basis of long-distance migration, the mimicry complex formed by the Monarch and the Viceroy butterflies offers insights into adaptive evolution.[1]

Picture credit (Creative Commons BY 2.0): Thomas Bresson 2010


The assembly presented is the Dplex_v4 assembly submitted to INSDC with the assembly accession GCA_009731565.1.


Ensembl Metazoa displays the genes from NCBI Danaus plexippus plexippus Annotation Release 100. Small RNA features, protein features and cross-references have been annotated by Ensembl Metazoa.


  1. The monarch butterfly genome yields insights into long-distance migration.
    Zhan S, Merlin C, Boore JL, Reppert SM. 2011. Cell. 147:1171-1185.
  2. Dichotomy of Dosage Compensation along the Neo Z Chromosome of the Monarch Butterfly.
    Gu L, Reilly PF, Lewis JJ, et al. Current Biology : CB. 2019 Dec;29(23):4071-4077.e3. DOI: 10.1016/j.cub.2019.09.056. PMID: 31735674; PMCID: PMC6901105.



AssemblyDplex_v4, INSDC Assembly GCA_009731565.1,
Database version112.4
Golden Path Length248,676,414
Genebuild byNCBI
Genebuild methodImport
Data sourcePrinceton University

Gene counts

Coding genes13,105
Non coding genes1,359
Small non coding genes670
Long non coding genes689
Gene transcripts21,564