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Insulin-like Peptide Receptor (ILPR) in the Cuttlefish Sepiella japonica: Characterization, Expression, and Regulation of Reproduction. Int J Mol Sci 2022; 23:ijms232112903. [DOI: 10.3390/ijms232112903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/03/2022] [Accepted: 10/21/2022] [Indexed: 11/16/2022] Open
Abstract
Insulin-like peptide receptor (ILPR) can effectively regulate ovarian development in invertebrates, but its effect in cuttlefish has not been reported. We isolated and characterized a ILPR gene from Sepiella japonica, referred to as SjILPR. This gene displayed significant homologies to Octopus bimaculoides ILPR, and contained all typical features of insulin receptors and tyrosine kinase domain structure. SjILPR is expressed in all detected tissues, with the highest expression in the ovary. During ovarian development stages, its expression levels in the ovary, pancreas, and liver were correlated to the female reproductive cycle. After the silencing of SjILPR in vivo, comparative transcriptome analysis identified 4314 differentially expressed genes (DEGs) in the injected group, including 2586 down-regulated genes and 1728 up-regulated genes. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses revealed that 832 DEGs were assigned to 222 pathways, many pathways of which were related to gonadal development. Four down-regulated genes relevant to ovarian development (Vitellogenin 1, Vitellogenin 2, Cathepsin L1-like, and Follistatin) were selected to confirm the accuracy of RNA-seq data by qRT-PCR. These results showed that SjILPR might regulate ovarian development to control reproduction by affecting the expression of the relevant genes in female S. japonica.
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Characterization of Insulin-like Peptide (ILP) and Its Potential Role in Ovarian Development of the Cuttlefish Sepiella japonica. Curr Issues Mol Biol 2022; 44:2490-2504. [PMID: 35735611 PMCID: PMC9221753 DOI: 10.3390/cimb44060170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 01/09/2023] Open
Abstract
The insulin-like peptide (ILP) family is well known for regulating reproduction in invertebrates, while its role in mollusks remains largely unknown. In this study, we first isolated and characterized the ILP gene in the cuttlefish Sepiella japonica. The full-length SjILP cDNA obtained was 926 bp and encoded a precursor protein of 161 amino acids. The precursor protein consisted of a signal peptide, a B chain, a C-peptide, and an A chain. It possessed the typical features of ILP proteins, including two cleavage sites (KR) and eight conserved cysteines. To define the function of SjILP, the expression of SjILP in different tissues and ovarian development stages were analyzed using qRT-PCR. SjILP was mainly expressed in the ovary, and its gene expression correlated with ovarian development. Furthermore, silencing SjILP using RNA interference (RNAi) dramatically decreased the expression levels of four ovarian-development-related genes (vitellogenin1, vitellogenin2, cathepsin L1-like, and follistatin). These data suggest the critical role of SjILP in the regulation of ovarian development in S. japonica.
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Wang Y, Jia X, Hsieh JCF, Monson MS, Zhang J, Shu D, Nie Q, Persia ME, Rothschild MF, Lamont SJ. Transcriptome Response of Liver and Muscle in Heat-Stressed Laying Hens. Genes (Basel) 2021; 12:genes12020255. [PMID: 33578825 PMCID: PMC7916550 DOI: 10.3390/genes12020255] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 12/13/2022] Open
Abstract
Exposure to high ambient temperature has detrimental effects on poultry welfare and production. Although changes in gene expression due to heat exposure have been well described for broiler chickens, knowledge of the effects of heat on laying hens is still relatively limited. In this study, we profiled the transcriptome for pectoralis major muscle (n = 24) and liver (n = 24), during a 4-week cyclic heating experiment performed on layers in the early phase of egg production. Both heat-control and time-based contrasts were analyzed to determine differentially expressed genes (DEGs). Heat exposure induced different changes in gene expression for the two tissues, and we also observed changes in gene expression over time in the control animals suggesting that metabolic changes occurred during the transition from onset of lay to peak egg production. A total of 73 DEGs in liver were shared between the 3 h heat-control contrast, and the 4-week versus 3 h time contrast in the control group, suggesting a core set of genes that is responsible for maintenance of metabolic homeostasis regardless of the physiologic stressor (heat or commencing egg production). The identified DEGs improve our understanding of the layer’s response to stressors and may serve as targets for genetic selection in the future to improve resilience.
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Affiliation(s)
- Yan Wang
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA; (Y.W.); (X.J.); (J.C.F.H.); (M.S.M.); (J.Z.); (M.F.R.)
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
| | - Xinzheng Jia
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA; (Y.W.); (X.J.); (J.C.F.H.); (M.S.M.); (J.Z.); (M.F.R.)
- School of Life Science and Engineering, Foshan University, Foshan 528225, China
| | - John C. F. Hsieh
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA; (Y.W.); (X.J.); (J.C.F.H.); (M.S.M.); (J.Z.); (M.F.R.)
| | - Melissa S. Monson
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA; (Y.W.); (X.J.); (J.C.F.H.); (M.S.M.); (J.Z.); (M.F.R.)
| | - Jibin Zhang
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA; (Y.W.); (X.J.); (J.C.F.H.); (M.S.M.); (J.Z.); (M.F.R.)
- Toni Stephenson Lymphoma Center, City of Hope, Duarte, CA 91010, USA
| | - Dingming Shu
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
| | - Qinghua Nie
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China;
| | - Michael E. Persia
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA;
| | - Max F. Rothschild
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA; (Y.W.); (X.J.); (J.C.F.H.); (M.S.M.); (J.Z.); (M.F.R.)
| | - Susan J. Lamont
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA; (Y.W.); (X.J.); (J.C.F.H.); (M.S.M.); (J.Z.); (M.F.R.)
- Correspondence: ; Tel.: +1-515-294-4100
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Sieiro P, Otero J, Aubourg SP. Biochemical Composition and Energy Strategy Along the Reproductive Cycle of Female Octopus vulgaris in Galician Waters (NW Spain). Front Physiol 2020; 11:760. [PMID: 32760287 PMCID: PMC7373806 DOI: 10.3389/fphys.2020.00760] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 06/11/2020] [Indexed: 11/26/2022] Open
Abstract
The common octopus, Octopus vulgaris, has a short life cycle, growing rapidly to maturity, spawning once, and characterized by an asynchronic oocyte development and a synchronic ovulation dying after breeding. This species has a protein and amino acid metabolism and it is usually defined as an income breeder. However, most biochemical studies lack an examination of the whole reproductive cycle, in particular the spawning process. We here studied the biochemical changes and determined the energy strategy along reproduction in female O. vulgaris, and found that proteins were the main energy reserve, primarily located in the body muscle when sexually maturing and decreasing during breeding. Lipids were also an important source of energy in the ovary and digestive gland and decreased during breeding too. By contrast, glycogen had a minor contribution to the energy content and was the unique compound that increased in spawning and post-spawning females. Additionally, the most abundant fatty acids (FA) in all tissues were 16:0, 18:0, 20:1n9, 20:4n6 (ARA), 20:5n3 (EPA) and 22:6n3 (DHA), with a clear predominance of long-chain polyunsaturated FA. The FA profile of mature ovaries was compared with other life stages finding similitudes with eggs, hatchlings and juveniles but considerable differences with paralarvae which showed higher DHA/ARA and EPA/ARA ratios. Therefore, we found important biochemical changes along the reproductive cycle that determined the energetic signature in each tissue, though no significant energy trade-offs between tissues were found, suggesting that, on the one hand, female O. vulgaris obtained energy directly from food accumulated simultaneously in the somatic and reproductive tissues during sexual maturation. However, an energy reallocation from somatic to reproductive growth would occur once vitellogenesis has started, so that the rate at which body growths would decrease in favor of ovary growth. On the other hand, during breeding, a general decrease in the energy content occurred in all tissues, so that the ovary would be responsible for the spawning success, whereas muscle tissues and digestive gland would independently supply the energy needed for the body maintenance safeguarding the female survival needed for the maternal care.
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Affiliation(s)
- Pilar Sieiro
- Campus do Mar (Doctoral Program DoMAR), Universidade de Vigo, Vigo, Spain
| | - Jaime Otero
- Departamento de Oceanografía, Instituto de Investigaciones Marinas (CSIC), Vigo, Spain
| | - Santiago P Aubourg
- Departamento de Tecnología de Alimentos, Instituto de Investigaciones Marinas (CSIC), Vigo, Spain
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Li HW, Chen C, Kuo WL, Lin CJ, Chang CF, Wu GC. The Characteristics and Expression Profile of Transferrin in the Accessory Nidamental Gland of the Bigfin Reef Squid during Bacteria Transmission. Sci Rep 2019; 9:20163. [PMID: 31882835 PMCID: PMC6934447 DOI: 10.1038/s41598-019-56584-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 12/09/2019] [Indexed: 12/27/2022] Open
Abstract
The accessory nidamental gland (ANG) is a female reproductive organ found in most squid and cuttlefish that contains a consortium of bacteria. These symbiotic bacteria are transmitted from the marine environment and selected by the host through an unknown mechanism. In animals, a common antimicrobial mechanism of innate immunity is iron sequestration, which is based on the development of transferrin (TF)-like proteins. To understand this mechanism of host-microbe interaction, we attempted to characterize the role of transferrin in bigfin reef squid (Sepioteuthis lessoniana) during bacterial transmission. qPCR analysis showed that Tf was exclusively expressed in the outer layer of ANG,and this was confirmed by in situ hybridization, which showed that Tf was localized in the outer epithelial cell layer of the ANG. Western blot analysis indicated that TF is a soluble glycoprotein. Immunohistochemical staining also showed that TF is localized in the outer epithelial cell layer of the ANG and that it is mainly expressed in the outer layer during ANG growth. These results suggest that robust Tf mRNA and TF protein expression in the outer layer of the ANG plays an important role in microbe selection by the host during bacterial transmission.
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Affiliation(s)
- Hau-Wen Li
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan
| | - Chih Chen
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan
| | - Wei-Lun Kuo
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan
| | - Chien-Ju Lin
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan
| | - Ching-Fong Chang
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan.,Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, Taiwan
| | - Guan-Chung Wu
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan. .,Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, Taiwan.
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Biscotti MA, Barucca M, Carducci F, Canapa A. New Perspectives on the Evolutionary History of Vitellogenin Gene Family in Vertebrates. Genome Biol Evol 2018; 10:2709-2715. [PMID: 30239716 PMCID: PMC6185446 DOI: 10.1093/gbe/evy206] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2018] [Indexed: 12/22/2022] Open
Abstract
Vitellogenin (Vtg) is a glycolipophosphoprotein produced by oviparous and ovoviviparous species and is the precursor protein of the yolk, an essential nutrient reserve for embryonic development and early larval stages. Vtg is encoded by a family of paralog genes whose number varies in the different vertebrate lineages. Its evolution has been the subject of considerable analyses but it remains still unclear. In this work, microsyntenic and phylogenetic analyses were performed in order to increase our knowledge on the evolutionary history of this gene family in vertebrates. Our results support the hypothesis that the vitellogenin gene family is expanded from two genes both present at the beginning of vertebrate radiation through multiple independent duplication events occurred in the diverse lineages.
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Affiliation(s)
- Maria Assunta Biscotti
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Marco Barucca
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Federica Carducci
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Adriana Canapa
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
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