China Animal Husbandry & Veterinary Medicine ›› 2025, Vol. 52 ›› Issue (11): 5254-5264.doi: 10.16431/j.cnki.1671-7236.2025.11.022

• Genetics and Breeding • Previous Articles    

Screening of Candidate Genes Related to Reproductive Traits in F2 Generation Zhezi Geese Based on Transcriptome Sequence

YUE Shan1,2, ZHAO Xiuhua2, SUN Jinyan2, PENG Fugang2, ZHANG Yuanliang2, LI Manyu2, LIU Guojun2   

  1. 1. Postdoctoral Scientific Research Station, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China;
    2. Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
  • Revised:2025-06-18 Published:2025-10-30

Abstract: 【Objective】 This study focused on the F2 generation female Zhezi geese derived from the crossbreeding of male Zhejiang White geese (♂) and female F1 generation Zhezi geese(♀),aiming to identify candidate genes related to reproductive traits through transcriptome analysis of blood samples collected during the laying and ceased periods,providing a reference for reproductive regulation in hybrid geese. 【Method】 Blood samples were collected from F2 generation Zhezi geese during the laying and ceased periods,and transcriptome sequencing (RNA-Seq) was performed using the Illumina NovaSeq 6000 sequencing platform.Differentially expressed genes (DEGs) were identified using DESeq,followed by GO function and KEGG pathway enrichment analysis to screen for genes associated with reproductive traits.Six differentially expressed genes were randomly selected for validation using Real-time quantitative PCR. 【Result】 Transcriptome sequencing results revealed a total of 4 576 differentially expressed genes between the laying and ceased periods,including 1 821 upregulated genes and 2 755 downregulated genes.GO function enrichment analysis identified 9 643 GO terms,primarily enriched in biological process such as positive regulation of calcium ion transmembrane transport,regulation of phagocytosis,and positive regulation of cation transmembrane transport,enriched in molecular functions including transferase activity,catalytic activity,purine nucleoside triphosphate binding,etc.,and enriched in cellular components mainly within intracellular.KEGG pathway enrichment analysis identified 157 pathways,mainly enriched in fructose and mannose metabolism,nicotinate and nicotinamide metabolism,and amino sugar and nucleotide sugar metabolism,with ADCY5,CD44,and CCND1 identified as candidate genes related to reproductive traits.Real-time quantitative PCR results were consistent with the transcriptome sequencing trends,confirming the reliability of the sequencing data. 【Conclusion】 This study identified three candidate genes (ADCY5,CD44,and CCND1) associated with reproductive traits through transcriptome sequencing,providing a foundation for functional research and subsequent molecular regulatory mechanisms in F2 generation Zhezi geese.

Key words: F2 generation Zhezi geese; transcriptome; signal pathway; candidate gene

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