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Methods to Discover Alternative Promoter Usage and Transcriptional Regulation of Murine Bcrp1
Published on: May 27, 2016
Functional Insights into Bpcreb1 in Bellamya purificata: Expression Dynamics and regulatory Roles during gonadal
Yijin Ren1, Xin Jin1, Jiaying Song1
1Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China.
Cyclic AMP response element-binding protein 1 (CREB1) is vital for snail reproduction. This study shows CREB1 regulates gonadal development and is crucial for spermatogenesis in Bellamya purificata.
Area of Science:
- * Molecular Biology
- * Developmental Biology
- * Aquaculture
Background:
- * Cyclic AMP response element-binding protein 1 (CREB1) is a conserved transcription factor essential for animal reproduction.
- * Understanding CREB1's function in gonadal development is key for reproductive biology and aquaculture.
Purpose of the Study:
- * To investigate the role of CREB1 in the gonadal development of the freshwater snail Bellamya purificata.
- * To explore CREB1's involvement in spermatogenesis and its potential regulatory mechanisms.
Main Methods:
- * Quantitative Real-Time PCR (qRT-PCR) for gene expression analysis.
- * In Situ Hybridization (ISH) for mRNA localization.
- * RNA interference (RNAi) for gene silencing.
- * DNA methylation analysis for epigenetic insights.
Main Results:
- * CREB1 transcript levels were significantly higher in testes than ovaries.
- * RNAi-mediated CREB1 knockdown disrupted sex gene expression and induced testicular defects, including reduced mature sperm.
- * Bpcreb1 appears to regulate spermatogenesis potentially via tssk and sox9, with low promoter methylation observed.
Conclusions:
- * CREB1 plays a critical role in regulating gonadal development in Bellamya purificata, particularly in spermatogenesis.
- * Findings provide a foundation for studying snail reproductive biology and developing monosex breeding strategies.
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