De novo assembly and characterization of two transcriptomes reveal multiple light-mediated functions in the scallop eye (Bivalvia: Pectinidae).

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PloS one, ISSN: 1932-6203, Vol: 8, Issue: 7, Page: e69852

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10.1371/journal.pone.0069852; 10.1371/journal.pone.0069852.t003; 10.1371/journal.pone.0069852.g004; 10.1371/journal.pone.0069852.g002; 10.1371/journal.pone.0069852.t001; 10.1371/journal.pone.0069852.t004; 10.1371/journal.pone.0069852.g005; 10.1371/journal.pone.0069852.g003; 10.1371/journal.pone.0069852.t002; 10.1371/journal.pone.0069852.g001
PMC3726758; 3726758
Autum N. Pairett; Jeanne M. Serb; Nicholas S. Foulkes
Public Library of Science (PLoS); Figshare
Biochemistry, Genetics and Molecular Biology; Agricultural and Biological Sciences; scallop; eye; transcriptome; contig; molluscan genome; Biological Sciences; Computational biology; Molecular genetics; Gene identification and analysis; Evolutionary biology; Comparative genomics; genomics; Genome analysis tools; Gene ontologies; transcriptomes; neuroscience; Sensory systems; Visual system; Sensory perception; Zoology; performed; annotate; ontology; categories; annotation; diagram; sequences; hits; phototransduction; circadian; genes; domains; interproscan; characterization; light-mediated; functions
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The eye has evolved across 13 separate lineages of molluscs. Yet, there have been very few studies examining the molecular machinary underlying eye function of this group, which is due, in part, to a lack of genomic resources. The scallop (Bivalvia: Pectinidae) represents a compeling molluscan model to study photoreception due to its morphologically novel and separately evolved mirror-type eye. We sequenced the adult eye transcriptome of two scallop species to: 1) identify the phototransduction pathway components; 2) identify any additional light detection functions; and 3) test the hypothesis that molluscs possess genes not found in other animal lineages.