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Comparative Transcriptome Profiling of Ileal and Cecal Tissues Between Pekin Ducks and Shaoxing Ducks

文献类型： 外文期刊

作者： Wang, Dandan 1 ; Hu, Zhengyu 1 ; Zhao, Ayong 1 ; Zeng, Tao 2 ; Gu, Tiantian 2 ; Xu, Wenwu 2 ; Tian, Yong 2 ; Lu, Lizhi 2 ; Chen, Li 2 ;

作者机构： 1.Zhejiang A&F Univ, Coll Anim Sci & Vet Med, Hangzhou 311300, Peoples R China

2.Zhejiang Acad Agr Sci, Zhejiang Ukraine Joint Lab Poultry Germplasm Resou, Hangzhou 310021, Peoples R China

关键词： cecum; duck; ileum; transcriptome

期刊名称：GENES （ 影响因子：2.8； 五年影响因子：3.2 ）

ISSN：

年卷期： 2025 年 16 卷 5 期

页码：

收录情况： SCI

摘要： Background: Pekin ducks are well-known meat-type ducks, whereas Shaoxing ducks are bred for their egg-laying abilities. Growth and development of poultry species is well studied; however, very little is known regarding differences in intestinal gene expression between Pekin and Shaoxing ducks. Methods: To investigate intestinal differences between Pekin and Shaoxing ducks, we conducted transcriptome analysis on ileal and cecal tissues from five 42-day-old ducks per breed, raised under identical housing and feeding conditions to minimize environmental influences. Results: The results showed that a total of 379 differentially expressed genes (DEGs) with p < 0.05 and |log2FoldChange| > 1 were identified in the ileum when Pekin ducks were compared to Shaoxing ducks, among which 158 were upregulated and 221 were downregulated. Compared to Shaoxing ducks, a total of 367 DEGs with p < 0.05 and |log2FoldChange| > 1 were identified in the ceca of Pekin ducks, among which 204 were upregulated and 163 were downregulated. Among these DEGs, nine genes were reported to be associated with growth and metabolism, namely, P2RX6, KCNJ6, CASQ2, EHHADH, ACSBG1, ELOVL4, AIF1L, VILL, and FABP1. Functional enrichment analyses using the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases indicated that the DEGs were significantly involved in pathways such as calcium signaling, unsaturated fatty acid biosynthesis, fatty acid degradation, and tryptophan metabolism. Conclusions: In conclusion, our study identified transcriptome differences in the intestines of meat-type and laying-type ducks, offering insights into the genetic basis of their growth and metabolic differences. Future studies should validate key genes and explore environmental influences on gene expression.

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