Molecular characterization, expression profile and transcriptional regulation of the CYP19 gene in goose ovarian follicles

Deng, Yan; Huang, Hsiu-Lin; Rong, Yujing; Hu, Shiyan; Hu, Jiwei; Hu, Bo; He, Hua; Li, Liang; Wang, Jiwen

doi:10.1016/j.gene.2021.145928

Cited by 2 publications

(2 citation statements)

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“…Egg laying is a physiological process that occurs with the release of the mature follicles from the ovary in the egg production period. In this process, some specific enzymes, genes and hormones have a proteolytic role on the ovaries (Walzem & Chen, 2014;Deng et al, 2022). In poultry, there are pre-hierarchical (dormant primordial and growing yolk follicles) and hierarchical follicles (preovulatory follicles) in The Effects of Breed and Body Mass Index on the Incidence of Arrested Laying Associated with Polycystic Ovarian Syndrome in Geese the ovary.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Breed and Body Mass Index on the Incidence of Arrested Laying Associated with Polycystic Ovarian Syndrome in Geese

FTÖ,

2024

Braz. J. Poult. Sci.

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This exploratory study aimed to investigate the effects of breed and body mass index (BMI) on arrested-laying (AL) associated with polycystic ovarian syndrome (AL-PCOS) in geese. Moreover, detailed pathological assessments in geese with AL were also performed. Mast geese and Large gray geese were reared under intensive feeding conditions. Observations during the laying season showed that all AL cases (n:8) (7.84%) were in Mast geese (n:102) fed with energy and protein-dense feeds. Necropsy revealed that all Mast geese with AL also had PCOS (8/8). In Mast geese, a significant difference was observed in body weight (BW) (p<0.0001) and BMI (p<0.0001) between the AL-PCOS group and the regular laying group. Follicle classifications detected by necropsy in AL-PCOS geese showed that among the Mast geese with AL-PCOS (n=8), two had atretic and cystic follicles (25%), four had type-1 and type-2 follicles (50%), and two had necrotic type-3 follicles (25%). The research data revealed that AL-PCOS might be correlated with breed and BMI, and that overfeeding and high BMI might increase AL-PCOS in breeds with high egg production, such as Mast geese. Therefore, it is crucial for farms raising high-yielding breeds such as Mast geese to strictly follow the laying periods and feeding regimes for high profitability. No previous reports had ever investigated AL-PCOS in geese, making this study the first of its kind. Moreover, the current study is also among the few presenting data on geese reproductive physiology and pathology.

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Section: Introductionmentioning

confidence: 99%

The Effects of Breed and Body Mass Index on the Incidence of Arrested Laying Associated with Polycystic Ovarian Syndrome in Geese

FTÖ,

2024

Braz. J. Poult. Sci.

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“…Its function directly affects the level of egg-laying performance of poultry. Therefore, poultry breeders usually select the ovary to study the egg-laying traits and identify differences related to these traits from the histological and molecular levels to explore the regulatory mechanism of the egg-laying performance ( 2 , 3 ). In recent years, the ovarian tissues of high- and low-egg-production individuals of poultries, including ducks, geese, and chicken, have been studied through RNA-Seq, which provides a convenient way to explore the candidate genes related to egg-laying performance.…”

Section: Introductionmentioning

confidence: 99%

Identification of differentially expressed genes and signaling pathways in Gaoyou duck ovary at different physiological stages

et al. 2023

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IntroductionGaoyou duck is famous in China and abroad for its good production of double-yolk eggs. However, there has been no systematic research on the egg-laying characteristics of the Gaoyou duck, which limits the development and utilization of breed resource.MethodsTo identify the essential genes related to ovarian development, the transcriptome profiles of the ovaries of Gaoyou ducks at different physiological stages were analyzed. The transcriptome profiles of the ovaries of Gaoyou ducks at 150 d (before laying), 240 d (egg laying) and 500 d (nesting) were constructed, and the differentially expressed genes (DEGs) underwent GO (gene ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) analyses.ResultsThe 6 randomly selected DEGs were verified by real-time fluorescent quantitative PCR that their relative expression was consistent with the transcriptional expression profile. Furthermore, KEGG analysis found that 8 candidate signaling pathways were essential for ovarian development, including the MAPK signaling pathway, Progesterone-mediated oocyte maturation, Cell adhesion molecules (CAMs), NOD-like receptor signaling pathway, ECM-receptor interaction, Focal adhesion, TGF-beta signaling path-way and Phagosome. Finally, 5 key DEGs were identified to participate in ovarian development, including TGIF1, TGFBR2, RAF1, PTK2 and FGF10.DiscussionOur findings reveal the mechanisms under-lying the molecular regulation of related genes in Gaoyou duck ovarian development.

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Molecular characterization, expression profile and transcriptional regulation of the CYP19 gene in goose ovarian follicles

Cited by 2 publications

References 40 publications

The Effects of Breed and Body Mass Index on the Incidence of Arrested Laying Associated with Polycystic Ovarian Syndrome in Geese

The Effects of Breed and Body Mass Index on the Incidence of Arrested Laying Associated with Polycystic Ovarian Syndrome in Geese

Identification of differentially expressed genes and signaling pathways in Gaoyou duck ovary at different physiological stages

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