DOI: 10.5061/dryad.24053dn
title: Data from: The scaly-foot snail genome and the ancient origins of biomineralised armour

description: The Scaly-foot Snail, Chrysomallon squamiferum, presents a combination of
 biomineralised features reminiscent of enigmatic early fossil taxa
 combining complex shells and sclerites such as sachtids, but in a
 recently-diverged living species which even has iron-infused skeleton.
 This provides a unique opportunity to shed light on genomic mechanisms
 underlying the diversification of biomineralised armour. Using a
 high-quality whole-genome assembly and tissue-specific transcriptomics, we
 show that scale and shell formation in the Scaly-foot Snail employ
 independent subsets of 25 highly-expressed transcription factors, and
 illuminate potential genomic mechanisms for the nano-scale biosynthesis of
 iron compounds. Comparisons with other lophotrochozoan genomes indicate
 that the biomineralisation toolkit is ancient but expression patterns
 differ across major lineages. The ability of lophotrochozoan lineages to
 generate a wide range of hard parts, exemplified by the remarkable
 morphological disparity in Mollusca, draws on a capacity to dynamically
 modify the expression and positioning of toolkit elements across the
 genome.
description: The assembled genome of
 Chrysomallon squamiferumThe assembled genome of
 the scaly-foot snail Chrysomallon squamiferum.Csq_v1.1.fa.gzThe de novo assembled transcriptome of Chrysomallon squamiferumThe de novo assembled transcriptome of Chrysomallon squamiferum. The reads were trimmed by Trimmomatic and assembled by Trinity.Csq_denovo_Trinity_cdhit095.fa.gzThe genome annotation fileChrysomallon squamiferum genome annotation file, maker gff3 format.csq_1.1.gff.gzThe predicted transcript sequences of the MAKER v3.0 annotations for the genome of Chrysomallon squamiferumThe predicted transcript sequences of the MAKER v3.0 annotations for the genome of Chrysomallon squamiferum (fasta format)SFGB1v1.0.maker.transcripts_clean.fa.gzThe predicted protein sequences of the MAKER v3.0 annotations for the genome of Chrysomallon squamiferumThe predicted protein sequences of the MAKER v3.0 annotations for the genome of Chrysomallon squamiferum (fasta format)SFGB1v1.0.maker.proteins_clean.fa.gzThe functional annotation file of the predicted Chrysomallon squamiferum gene modelsThe functional annotation file of the predicted Chrysomallon squamiferum gene modelsSFG_annotation_Table.xlsxThe raw gene expression file of the scale versus other tissuesGene expression analysis of the scale versus other tissues, including gill, mantle, foot, and oesophageal gland. The analysis was performed by DeSeq.Scale_Raw_Deseq_output.txtThe raw output of the gene expression file of oesophageal gland versus other tissuesGene expression analysis of the oesophageal gland versus other tissues, including gill, mantle, foot, and scale. The analysis was performed by DeSeq.OG_Raw_Deseq_output.txtThe raw gene expression file of the mantle versus other tissuesGene expression analysis of the mantle versus other tissues, including gill, oesophageal gland, foot, and scale. The analysis was performed by DeSeq.Mantle_Raw_Deseq_output.txtThe raw gene expression file of the gill versus other tissuesGene expression analysis of the gill versus other tissues, including mantle, oesophageal gland, foot, and scale. The analysis was performed by DeSeq.Gill_Raw_Deseq_output.txtComparison of the gene expression profile in Scale between Kairei and Solitaire vent samplesComparison of the gene expression profile in Scale between Kairei and Solitaire vent samples. The analysis was performed by DeSeq.Scale_result_Kairei_vs_Solitaire.txtComparison of the gene expression profile in mantle between Kairei and Solitaire samplesComparison of the gene expression profile in mantle between Kairei and Solitaire samples. The analysis was performed by DeSeq.Mantle_result_Kairei_vs_Solitaire.txt