Molecular and transcriptomic analysis of the ovary during laying and brooding stages in Zhedong white geese (Anser cygnoides domesticus)
文献类型： 外文期刊
作者： Wang, Y. 1 ; Wang, S. 1 ; Zang, Z. 1 ; Li, B. 1 ; Liu, G. 2 ; Huang, H. 1 ; Zhao, X. 2 ;
作者机构： 1.Northeast Agr Univ, Coll Anim Sci & Technol, Harbin 150030, Peoples R China
2.Heilongjiang Acad Agr Sci, Anim Husb Inst, Harbin 150086, Peoples R China
关键词： Reproductive hormones; follicles; apoptosis; mTOR, geese; ovary
期刊名称：BRITISH POULTRY SCIENCE （ 影响因子：1.6； 五年影响因子：2.3 ）
ISSN： 0007-1668
年卷期： 2024 年
页码：
收录情况： SCI
摘要： 1. This study investigates the molecular mechanisms affecting brooding in Zhedong white geese by examining differences in reproductive endocrine levels, ovarian histology and transcriptomics. 2. Twenty 18-month-old Zhedong white geese were selected to examine their ovaries using histological, biochemical, molecular biological, and high-throughput sequencing techniques during the laying and brooding periods. 3. The results showed that the number of atretic follicles and apoptotic cells in the ovaries increased significantly (p < 0.05), the levels of follicle-stimulating hormone, luteinising hormone, gonadotropin-releasing hormone and oestradiol decreased significantly (p < 0.05), and the level of prolactin increased significantly (p < 0.01) during the brooding stage. 4. In broody geese, the expression of CASP3, CASP9, P53, BAX, and Cyt-c were considerably higher (p < 0.05), but BCL2 expression was significantly lower (p < 0.05). 5. In ovarian tissues, 260 differentially expressed lncRNAs, 13 differentially expressed miRNA and 60 differentially expressed mRNA were all discovered using transcriptome sequencing analysis. Functional enrichment analysis revealed that the differentially expressed mRNA and non-coding RNA target genes were primarily involved in ECM-receptor interaction, cell adhesion, cardiac muscle contraction, mTOR signalling, and the calcium signalling pathway. 6. In conclusion, follicular atrophy and apoptosis occurred in the ovaries and serum reproductive hormone levels were significantly changed during the brooding period of Zhedong white geese. COL3A1, COL1A2, GRIA1, RNF152, miR-192, and miR-194 may be important candidates for the regulation of brooding behaviour, with the mTOR signalling pathway playing a key role.
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