Genome of the Rusty Millipede, Trigoniulus corallinus, Illuminates Diplopod, Myriapod, and Arthropod Evolution

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Abstract
The increasing availability of genomic information from the Arthropoda continues to revolutionize our understanding of the biology of this most diverse animal phylum. However, our sampling of arthropod diversity remains uneven, and key clade such as the Myriapoda are severely underrepresented. Here we present the genome of the cosmopolitanly distributed Rusty Millipede Trigoniulus corallinus, which represents the first diplopod genome to be published, and the second example from the Myriapoda as a whole. This genomic resource contains the majority of core eukaryotic genes (94.3%), and key transcription factor classes that were thought to be lost in the Ecdysozoa. Mitochondrial genome and gene family (transcription factor, Dscam, circadian clock-driving protein, odorant receptor cassette, bioactive compound, and cuticular protein) analyses were also carried out to shed light on their states in the Diplopoda and Myriapoda. The ready availability of T. corallinus recommends it as a new model for evolutionary developmental biology, and the data set described here will be of widespread utility in investigating myriapod and arthropod genomics and evolution.

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