Abstract
Bivalve mollusks have fascinatingly diverse modes of reproduction. However, research investigating sex determination and reproductive regulation in this group of animals is still in its infancy. In this study, transcriptomes of three ovaries and three testes of Yesso scallop were sequenced and analyzed. Transcriptome comparison revealed that 4394 genes were significantly different between ovaries and testes, of which 1973 were ovary-biased (upregulated in the ovaries) and 2421 were testis-biased. Crucial sex-determining genes that were previously reported in vertebrates and putatively present in bivalves, namely FOXL2, DMRT, SOXH, and SOXE, were investigated. The genes all possessed conserved functional domains and were detected in the gonads. Except for PySOXE, the other three genes were significantly differentially expressed between the ovaries and testes. PyFOXL2 was ovary-biased, and PyDMRT and PySOXH were testis-biased, suggesting that these three genes are likely to be key candidates for scallop sex determination/differentiation. Furthermore, GO and KEGG enrichment analyses were conducted for both ovary- and testis-biased genes. Interestingly, both neurotransmitter transporters and GABAergic synapse genes were overrepresented in the ovary-biased genes, suggesting that neurotransmitters, such as GABA and glycine, are likely to participate in scallop ovary development. Our study will assist in better understanding of the molecular mechanisms underlying bivalve sex determination and reproductive regulation.
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References
Anders S, Pyl PT, Huber W (2014) HTSeq—a Python framework to work with high-throughput sequencing data. Bioinformatics 31:166–169
Arshavsky YL, Gamkrelidze GN, Orlovsky GN, Panchin YV, Popova LB (1991) Gamma-aminobutyric acid induces feeding behaviour in the marine mollusc, Clione limacina. Neuroreport 2:169–172
Avila C, Tamse CT, Kuzirian AM (1996) Induction of metamorphosis in Hermissenda crassicornis larvae (Molluscs: Nudibranchia) by GABA, choline and serotonin. Invertebr Reprod Dev 29:127–141
Baloun AJ, Morse DE (1984) Ionic control of settlement and metamorphosis in larval Haliotis rufescens (Gastropoda). Biol Bull 167:124–138
Beissbarth T, Speed TP (2004) GOstat: find statistically overrepresented Gene Ontologies within a group of genes. Bioinformatics 20:1464–1465
Benjamini Y, Hochberg Y (1995) Controlling the false discovery rate: a practical and powerful approach to multiple testing. J R Stat Soc Ser B Methodol 57:289–300
Beukeboom LW, Perrin N (2014) The evolution of sex determination. Oxford University Press, Oxford
Biggs K, Seidel JS, Wilson A, Martyniuk CJ (2013) γ-Amino-butyric acid (GABA) receptor subunit and transporter expression in the gonad and liver of the fathead minnow (Pimephales promelas). Comp Biochem Physiol A Mol Integr Physiol 166:119–127
Boulanger L et al (2014) FOXL2 is a female sex-determining gene in the goat. Curr Biol 24:404–408
Ciocan CM et al (2010) Effects of estrogen exposure in mussels, Mytilus edulis, at different stages of gametogenesis. Environ Pollut 158:2977–2984
Del Rio RM (1981) Gamma-aminobutyric acid system in rat oviduct. J Biol Chem 256:9816–9819
Ding J, Zhao L, Chang Y, Zhao W, Du Z, Hao Z (2015) Transcriptome sequencing and characterization of Japanese scallop Patinopecten yessoensis from different shell color lines. PLoS One 10:e0116406
Erdö SL, Lapis E (1982) Presence of GABA receptors in rat oviduct. Neurosci Lett 33:275–279
Erdö SL, László A (1984) High specific gamma-aminobutyric acid binding to membranes of the human ovary. J Neurochem 42:1464–1467
Gamble T, Zarkower D (2012) Sex determination. Curr Biol 22:R257–R262
Guo X, Hedgecock D, Hershberger WK, Cooper K, Allen SK Jr (1998) Genetic determinants of protandric sex in the Pacific oyster, Crassostrea gigas Thunberg. Evolution 52:394–402
Haley LE (1979) Genetics of sex determination in the American oyster. In: Proceedings of the National Shellfisheries Association, p 54–57
Hedrick PW, Hedgecock D (2010) Sex determination: genetic models for oysters. J Hered 101:602–611
Hiramatsu R et al (2009) A critical time window of Sry action in gonadal sex determination in mice. Development 136:129–138
Hoek P (1883) Researches on the generative organs of the oyster (O. edulis). Bulletin of the US Fish Commission, vol. 2, p 343–345
Hou R et al (2011) Transcriptome sequencing and de novo analysis for Yesso scallop (Patinopecten yessoensis) using 454 GS FLX. PLoS One 6:e21560
Kanehisa M, Sato Y, Kawashima M, Furumichi M, Tanabe M (2016) KEGG as a reference resource for gene and protein annotation. Nucleic Acids Res 44:D457–D462
Kashimada K, Koopman P (2010) Sry: the master switch in mammalian sex determination. Development 137:3921–3930
Kellogg J (1892) A contribution to our knowledge of the morphology of Lamellibranch mollusks. Bulletin of the US Fish Commission, vol. 10, p 389–436
Kent J, Wheatley SC, Andrews JE, Sinclair AH, Koopman P (1996) A male-specific role for SOX9 in vertebrate sex determination. Development 122:2813–2822
Larkin MA et al (2007) Clustal W and Clustal X version 2.0. Bioinformatics 23:2947–2948
Li H, Zhang Z, Bi Y, Yang D, Zhang L, Liu J (2014) Expression characteristics of β-catenin in scallop Chlamys farreri gonads and its role as a potential upstream gene of Dax1 through canonical Wnt signalling pathway regulating the spermatogenesis. PLoS One 9:e115917
Li R et al (2015) Characterizations and expression analyses of NF-kB and Rel genes in the Yesso scallop (Patinopecten yessoensis) suggest specific response patterns against Gram-negative infection in bivalves. Fish Shellfish Immunol 44:611–621
Liu X-L, Zhang Z-F, Shao M-Y, Liu J-G, Muhammad F (2012) Sexually dimorphic expression of foxl2 during gametogenesis in scallop Chlamys farreri, conserved with vertebrates. Dev Genes Evol 222:279–286
Markov GV, Tavares R, Dauphin-Villemant C, Demeneix BA, Baker ME, Laudet V (2009) Independent elaboration of steroid hormone signaling pathways in metazoans. Proc Natl Acad Sci U S A 106:11913–11918
Martinez G, Rivera A (1994) Role of monoamines in the reproductive process of Argopecten pupuratus. Invertebr Reprod Dev 25:167–174
Martyniuk CJ et al (2013) Gene expression networks underlying ovarian development in wild largemouth bass (Micropterus salmoides). PLoS One 8:e59093
Matson CK, Zarkower D (2012) Sex and the singular DM domain: insights into sexual regulation, evolution and plasticity. Nat Rev Genet 13:163–174
Matson CK, Murphy MW, Sarver AL, Griswold MD, Bardwell VJ, Zarkower D (2011) DMRT1 prevents female reprogramming in the postnatal mammalian testis. Nature 476:101–104
Matsumoto T, Osada M, Osawa Y, Mori K (1997) Gonadal estrogen profile and immunohistochemical localization of steroidogenic enzymes in the oyster and scallop during sexual maturation. Comp Biochem Physiol B Biochem Mol Biol 118:811–817
Matsutani T, Nomura T (1984) Localization of monoamines in the central nervous system and gonad of the scallop Patinopecten yessoensis. Bull Jpn Soc Sci Fish 50:425–430
Matsutani T, Nomura T (1986) Serotonin-like immunoreactivity in the central nervous system and gonad of the scallop, Patinopecten yessoensis. Cell Tissue Res 244:515–517
Meechonkit P, Kovitvadhi U, Chatchavalvanich K, Sretarugsa P, Weerachatyanukul W (2010) Localization of serotonin in neuronal ganglia of the freshwater pearl mussel, Hyriopsis (Hyriopsis) bialata. J Molluscan Stud 76:267–274
Meng X et al (2015) The transcriptomic response to copper exposure in the digestive gland of Japanese scallops (Mizuhopecten yessoensis). Fish Shellfish Immunol 46:161–167
Morishita F, Furukawa Y, Matsushima O, Minakata H (2010) Regulatory actions of neuropeptides and peptide hormones on the reproduction of molluscs. Can J Zool 88:825–845
Moriya Y, Itoh M, Okuda S, Yoshizawa AC, Kanehisa M (2007) KAAS: an automatic genome annotation and pathway reconstruction server. Nucleic Acids Res 35:W182–W185
Nagasawa K, Oouchi H, Itoh N, Takahashi KG, Osada M (2015) In vivo administration of scallop GnRH-like peptide influences on gonad development in the Yesso scallop, Patinopecten yessoensis. PloS One 10:e0129571
Naimi A, Martinez A-S, Specq M-L, Diss B, Mathieu M, Sourdaine P (2009a) Molecular cloning and gene expression of Cg-Foxl2 during the development and the adult gametogenetic cycle in the oyster Crassostrea gigas. Comp Biochem Physiol B Biochem Mol Biol 154:134–142
Naimi A, Martinez A-S, Specq M-L, Mrac A, Diss B, Mathieu M, Sourdaine P (2009b) Identification and expression of a factor of the DM family in the oyster Crassostrea gigas. Comp Biochem Physiol A Mol Integr Physiol 152:189–196
Nakamura S, Osada M, Kijima A (2007) Involvement of GnRH neuron in the spermatogonial proliferation of the scallop, Patinopecten yessoensiss. Mol Reprod Dev 74:108–115
Ni J, Zeng Z, Ke C (2013) Sex steroid levels and expression patterns of estrogen receptor gene in the oyster Crassostrea angulata during reproductive cycle. Aquaculture 376:105–116
Osada M, Nomura T (1989) Estrogen effect on the seasonal levels of catecholamines in the scallop Patinopecten yessoensis. Comp Biochem Physiol C 93:349–353
Osada M, Harata M, Kishida M, Kijima A (2004) Molecular cloning and expression analysis of vitellogenin in scallop, Patinopecten yessoensis (Bivalvia, Mollusca). Mol Reprod Dev 67:273–281
Paulet Y-M, Donval A, Bekhadra F (1993) Monoamines and reproduction in Pecten maximus, a preliminary approach. Invertebr Reprod Dev 23:89–94
Ram JL, Fong P, Croll RP, Nichols SJ, Wall D (1992) The zebra mussel (Dreissena polymorpha), a new pest in North America: reproductive mechanisms as possible targets of control strategies. Invertebr Reprod Dev 22:77–86
Rio RM, Caballero AL (1980) Presence of γ‐aminobutyric acid in rat ovary. J Neurochem 34:1584–1586
Robinson MD, Smyth GK (2008) Small-sample estimation of negative binomial dispersion, with applications to SAGE data. Biostatistics 9:321–332
Robinson MD, Mccarthy DJ, Smyth GK (2010) edgeR: a bioconductor package for differential expression analysis of digital gene expression data. Bioinformatics 26:139–140
Santerre C, Sourdaine P, Adeline B, Martinez A-S (2014) Cg-SoxE and Cg-β-catenin, two new potential actors of the sex-determining pathway in a hermaphrodite lophotrochozoan, the Pacific oyster Crassostrea gigas. Comp Biochem Physiol A Mol Integr Physiol 167:68–76
Shi Y, Wang Q, He M (2014) Molecular identification of dmrt2 and dmrt5 and effect of sex steroids on their expressions in Chlamys nobilis. Aquaculture 426:21–30
Soonklang N, Stewart MJ, Wanichanon C, Stewart P, Hanna PJ, Sobhon P (2013) Distribution of GABA in the nerve ganglia of Haliotis asinina Linnaeus. J Shellfish Res 32:59–66
Sun Y et al (2014) Identification of two secreted ferritin subunits involved in immune defense of Yesso scallop Patinopecten yessoensis. Fish Shellfish Immunol 37:53–59
Sun X, Yang A, Wu B, Zhou L, Liu Z (2015) Characterization of the mantle transcriptome of Yesso scallop (Patinopecten yessoensis): identification of genes potentially involved in biomineralization and pigmentation. PLoS One 10:e0122967
Tamura K, Stecher G, Peterson D, Filipski A, Kumar S (2013) MEGA6: molecular evolutionary genetics analysis version 6.0. Mol Biol Evol 30:2725–2729
Tanabe T, Osada M, Kyozuka K, Inaba K, Kijima A (2006) A novel oocyte maturation arresting factor in the central nervous system of scallops inhibits serotonin-induced oocyte maturation and spawning of bivalve mollusks. Gen Comp Endocrinol 147:352–361
Tanabe T, Yuan Y, Nakamura S, Itoh N, Takahashi KG, Osada M (2010) The role in spawning of a putative serotonin receptor isolated from the germ and ciliary cells of the gonoduct in the gonad of the Japanese scallop, Patinopecten yessoensis. Gen Comp Endocrinol 166:620–627
Teaniniuraitemoana V et al (2014) Gonad transcriptome analysis of pearl oyster Pinctada margaritifera: identification of potential sex differentiation and sex determining genes. BMC Genomics 15:491
Trapnell C, Pachter L, Salzberg SL (2009) TopHat: discovering splice junctions with RNA-Seq. Bioinformatics 25:1105–1111
Uhlenhaut NH et al (2009) Somatic sex reprogramming of adult ovaries to testes by FOXL2 ablation. Cell 139:1130–1142
Wang Q (1984) Introduction of Japanese scallop and prospect of culture it in northern China. Fish Sci 3:24–27
Wang Q, He M (2014) Molecular characterization and analysis of a putative 5-HT receptor involved in reproduction process of the pearl oyster Pinctada fucata. Gen Comp Endocrinol 204:71–79
Zhang H, Pan L, Zhang L (2012) Molecular cloning and characterization of estrogen receptor gene in the scallop Chlamys farreri: expression profiles in response to endocrine disrupting chemicals. Comp Biochem Physiol C Toxicol Pharmacol 156:51–57
Zhang Y, Zhang R, Zou J, Hu X, Wang S, Zhang L, Bao Z (2013) Identification and characterization of four ferritin subunits involved in immune defense of the Yesso scallop (Patinopecten yessoensis). Fish Shellfish Immunol 34:1178–1187
Zhang N, Xu F, Guo X (2014) Genomic analysis of the Pacific oyster (Crassostrea gigas) reveals possible conservation of vertebrate sex determination in a mollusc. G3 (Bethesda) 4:2207–2217
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This work was supported by the National Natural Science Foundation of China (31572600, 31322055) and Fok Ying-Tong Education Foundation (141026).
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Li, Y., Zhang, L., Sun, Y. et al. Transcriptome Sequencing and Comparative Analysis of Ovary and Testis Identifies Potential Key Sex-Related Genes and Pathways in Scallop Patinopecten yessoensis . Mar Biotechnol 18, 453–465 (2016). https://doi.org/10.1007/s10126-016-9706-8
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DOI: https://doi.org/10.1007/s10126-016-9706-8