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Abstract
Estrus synchronization and manipulation are a tool that has been used by producers to provide uniform lamb and kid meat production and dairy sheep and goat milk production, to concentrate work and labor cost, and to plan for the lambing and kidding time. Breeders can also use estrus synchronization to stimulate ewes and does to exhibit estrus and ovulate outside of the breeding season, although both the ovulation rate and pregnancy rate may be decreased. To increase the ovulation rate outside of the breeding season, a variety of estrus synchronization methods have been used.
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Affiliation(s)
| | - Michelle Anne Kutzler
- Animal and Rangeland Science, Oregon State University, 112 Withycombe Hall, Corvallis, OR 97331, USA
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Li X, Li C, Xu Y, Yao R, Li H, Ni W, Quan R, Zhang M, Liu L, Yu S, Ullah Y, Hu R, Li Y, Guo T, Wang X, Hu S. Analysis of pituitary transcriptomics indicates that lncRNAs are involved in the regulation of sheep estrus. Funct Integr Genomics 2020; 20:563-573. [PMID: 32114660 DOI: 10.1007/s10142-020-00735-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 11/17/2019] [Accepted: 02/06/2020] [Indexed: 12/13/2022]
Abstract
Seasonal estrus is a key factor limiting animal fertility, and understanding the molecular mechanisms that regulate animal estrus is important for improving animal fertility. The pituitary gland, which is the most important endocrine gland in mammals, plays an important role in regulating the physiological processes such as growth, development, and reproduction of animals. Here, we used RNA-seq technology to study the expression profile of lncRNAs in the anterior pituitary of sheep during estrus and anestrus. In this study, we identified a total of 995 lncRNAs, of which 335 lncRNAs were differentially expressed in two states (including 38 up-regulated and 297 down-regulated lncRNAs). RT-qPCR verified the expression levels of several lncRNAs. Target predictive analysis revealed that these lncRNAs can act in cis or trans and regulate the expression of genes involved in the regulation of sheep estrus. Target gene enrichment analysis of differentially expressed lncRNAs indicates that these lncRNAs can regulate sheep estrus by regulating hormone metabolism and energy metabolism. Through our research, we provide the expression profile of lncRNAs in the pituitary of sheep, which provides a valuable resource for further understanding of the genetic regulation of seasonal estrus in sheep from the perspective of lncRNAs.
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Affiliation(s)
- Xiaoyue Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Cunyuan Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China.,College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Yueren Xu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Rui Yao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Huixiang Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Wei Ni
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China.
| | - Renzhe Quan
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Mengdan Zhang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Li Liu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Shuting Yu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Yaseen Ullah
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Ruirui Hu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Yaxin Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Tao Guo
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Xiaokui Wang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Shengwei Hu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China.
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Li X, Li C, Wei J, Ni W, Xu Y, Yao R, Zhang M, Li H, Liu L, Dang H, Hazi W, Hu S. Comprehensive Expression Profiling Analysis of Pituitary Indicates that circRNA Participates in the Regulation of Sheep Estrus. Genes (Basel) 2019; 10:genes10020090. [PMID: 30696117 PMCID: PMC6409929 DOI: 10.3390/genes10020090] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 01/01/2023] Open
Abstract
The pituitary gland is the most important endocrine organ that mainly regulates animal estrus by controlling the hormones synthesis. There is a significant difference between the estrus state and anestrus state of sheep pituitary system. Here, we studied the circular RNA (circRNA) expression profiles of the anterior pituitary of estrus and anestrus sheep using RNA-seq technology. Through this study, we identified a total of 12,468 circRNAs and 9231 differentially expressed circRNAs in the estrus and anestrus pituitary system of sheep. We analyzed some differentially expressed circRNAs by reverse transcription quantitative-PCR (RT-qPCR), and some circRNAs were demonstrated using RNase-R+ resistance experiments. CircRNAs involving the regulation of estrus-related terms and pathways are enriched by using gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. In addition, we also predicted partial microRNA-circRNA interaction network for circRNAs that regulate sheep estrus. Overall, this study explored a potential substantial role played by circRNAs involved in pituitary regulation on sheep estrus and proposed new questions for further study.
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Affiliation(s)
- Xiaoyue Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Cunyuan Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Junchang Wei
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Wei Ni
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Yueren Xu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Rui Yao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Mengdan Zhang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Huixiang Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Li Liu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Hanli Dang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Wureli Hazi
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Shengwei Hu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
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Hennies M, Voglmayr JK, Dietrich E, Stollmann M, Moeller R, Holtz W. Hormonal response of female goats to active immunization against a recombinant human inhibin alpha-subunit, and establishment of an enzyme-linked immunosorbent assay for caprine follicle-stimulating hormone. Reprod Domest Anim 2001; 36:65-71. [PMID: 11328558 DOI: 10.1046/j.1439-0531.2001.00250.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The effect of selective immunosuppression of endogenous inhibin in goats on FSH, LH, progesterone and estradiol-17beta profiles was studied during the breeding and nonbreeding seasons. Eighteen adult female Boer goats were immunized against the recombinant human inhibin alpha-subunit (hINH-alpha). With the exception of estradiol, which was determined by radio-immunoassay (RIA), all plasma hormone concentrations were determined by ELISA. The ELISA for FSH presented in this paper was established in the authors' laboratory, based on an existing RIA. Mean basal concentrations of FSH were not affected by immunosuppression of endogenous inhibin, nor was there a difference in the amplitude of the pre-ovulatory FSH surge. Immunization against inhibin appears to eliminate the slight secondary rise of FSH occurring 12-20 h after the major surge associated with ovulation. The LH profiles of the immunized goats were characterized by lower basal concentrations both before and after the pre-ovulatory LH surge which itself was reduced by 50% in immunized does. By contrast, concentrations of circulating estradiol were significantly elevated after inhibin-immunization. Progesterone profiles were not affected. Extending immunization into the anoestrous season by a booster injection of hINH-alpha, implicating oestrus induction with a progestagen and eCG, produced no discernible differences in FSH and LH profiles in comparison with nonimmunized control goats. The findings suggest that in goats, paracrine factors may play a more significant role in controlling follicular activity than a feedback mechanism acting via the pituitary.
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Affiliation(s)
- M Hennies
- Institute of Animal Husbandry and Genetics, University of Goettingen, Germany
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