Identification and Validation of Reference Genes for Gene Expression Analysis in Schima superba

Area of Science:

• Plant molecular biology
• Molecular genetics
• Biotechnology

Background:

• Accurate gene expression studies using real-time quantitative PCR (RT-qPCR) rely on stable reference genes.
• Schima superba, a valuable timber species, lacks established reference genes for expression analysis.
• Identifying stable reference genes is crucial for understanding gene regulation in S. superba.

Purpose of the Study:

• To identify and validate the most stable reference genes for normalizing RT-qPCR data in different tissues of Schima superba.
• To provide a reliable foundation for future gene expression studies in S. superba.

Main Methods:

• Nineteen candidate reference genes were selected in S. superba.
• Expression stability of candidate genes was evaluated across different tissues using geNorm, NormFinder, and BestKeeper software.
• A comprehensive stability ranking was determined using the geometric mean method.

Main Results:

• SsuACT was identified as the most stable single reference gene.
• The combination of SsuACT and SsuRIB demonstrated the highest stability for normalizing gene expression across different tissues.
• Verification using SsuSND1 expression confirmed the suitability of the identified reference genes.

Conclusions:

• This study provides the first validated set of reference genes for normalizing gene expression in Schima superba across various tissues.
• The findings will significantly aid in future research on gene regulation and molecular mechanisms in S. superba.
• The validated reference genes serve as a valuable resource for studies in S. superba and related species.