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Dev Genes Evol. 2014 Dec;224(4-6):197-207. doi: 10.1007/s00427-014-0478-8. Epub 2014 Aug 13.

SARP19 and vdg3 gene families are functionally related during abalone metamorphosis.

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1
State Key Laboratory of Marine Environmental Science, Xiang'an Campus of Xiamen University, Xiamen, 361101, China.

Abstract

The transcriptional activity of the SARP19-I1 and vdg3-I1 genes increases over tenfold when Haliotis diversicolor larvae shift from the pelagic to benthic lifestyle, signifying the important role of these genes during abalone metamorphosis. In this study, eight paralogous SARP19 genes and six paralogous vdg3 genes were identified from H. diversicolor transcriptomes. Phylogenetic analyses were performed, and the spatio-temporal expression patterns of these genes were separately determined by quantitative polymerase chain reaction (qPCR) and whole mount in situ hybridization (WMISH). Five SARP19 paralogs and five vdg3 paralogs showed at least a tenfold increase in expression after settlement. Among these differentially expressed genes, three SARP19 paralogs and four vdg3 paralogs were verified as being spatially expressed in the digestive glands of newly settled postlarvae. We proposed that a hypothesis of coevolution between the two gene families might explain the similarities in their expression patterns and their phylogenetics.

PMID:
25115590
DOI:
10.1007/s00427-014-0478-8
[Indexed for MEDLINE]

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