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. 2018 Oct 8;25(6):655–665. doi: 10.1093/dnares/dsy032

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© The Author(s) 2018. Published by Oxford University Press on behalf of Kazusa DNA Research Institute.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 6. — Genes associated with reproduction and their distribution in 6 molluscs and their expression in S. glomerata. Genes that were more abundant in the testis compared with ovary includes the putative receptor genes (5HTR1, TACRs, GnRHR/CrzR, and NPYR) and testis-specific protein genes (TSSKs). Conversely, expression of genes encoding reproductive signalling factors, such as CDA-A, β-catenin, Phb2, nanos, FoxL2 and vitellogenin, were higher in ovary tissue. Neuropeptides, including CCAP, buccalin, APGWamide and ELH, were found at relative low abundance in the gonads, but higher in the gill and mantle tissues. In the muscle and digestive tissues, there was overall low expression of all reproductive-related genes, except for NPY and GPR54-2, which were highly expressed and potentially specific to the digestive gland.