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. 2024 Jul 8;25(1):680.
doi: 10.1186/s12864-024-10544-3.

Dietary restriction promote sperm remodeling in aged roosters based on transcriptome analysis

Affiliations

Dietary restriction promote sperm remodeling in aged roosters based on transcriptome analysis

Wenjie Liang et al. BMC Genomics. .

Abstract

Background: The breeder rooster has played a pivotal role in poultry production by providing high-quality semen. Typically, fertility peaks between 30 and 40 weeks of age and then declines rapidly from 45 to 55 weeks of age. Research into improving fertility in aging roosters is essential to extend their productive life. While progress has been made, enhancing fertility in aging roosters remains a significant challenge.

Methods: To identify the genes related to promoting sperm remodeling in aged Houdan roosters, we combined changes in testis and semen quality with transcriptome sequencing (RNA-seq) to analyze the synchrony of semen quality and testis development. In this study, 350-day-old Houdan breeder roosters were selected for RNA-seq analysis in testis tissues from induced molting roosters (D group) and non-induced molting roosters (47DG group). All analyses of differentially expressed genes (DEGs) and functional enrichment were performed. Finally, we selected six DEGs to verify the accuracy of the sequencing by qPCR.

Results: Compared with the 47DG group, sperm motility (P < 0.05), sperm density (P < 0.01), and testis weight (P < 0.05) were significantly increased in roosters in the D group. Further RNA-seq analysis of the testis between the D group and 47DG group identified 61 DEGs, with 21 up-regulated and 40 down-regulated. Functional enrichment analysis showed that the DEGs were primarily enriched in the cytokine-cytokine receptor interaction, Wnt signaling pathway, MAPK signaling pathway, TGF-β signaling pathway, and focal adhesion pathway. The qRT-PCR results showed that the expression trend of these genes was consistent with the sequencing results. WNT5A, FGFR3, AGTR2, TGFβ2, ROMO1, and SLC26A7 may play a role in testis development and spermatogenesis. This study provides fundamental data to enhance the reproductive value of aging roosters.

Keywords: Molting; Reproductive performance; Roosters; Spermatogenesis; Transcriptome..

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Conflict of interest statement

The authors declare no competing interests.

There are no conflicts of interest.

Figures

Fig. 1
Fig. 1
Effect of induced molting on semen quality and weight in testes of aged Houdan roosters. (a): Changes in sperm density. (b): Changes in sperm motility. (c): Changes in testis weight
Fig. 2
Fig. 2
Differentially expressed genes in D group and 47DG group. (a): Results analysis of differentially expressed genes, (b): Volcano map of differentially expressed genes
Fig. 3
Fig. 3
The principal component analysis (PCA) of the D group and 47DG group. main principal component (PC) scores as follows: PC1 = 46.33% and PC2 = 21.99%
Fig. 4
Fig. 4
Heatmaps based on generated from six samples in the D group and 47DG group
Fig. 5
Fig. 5
GO and KEGG pathway enrichment analysis. (a) Top 20 GO Term enrichment of DEGs, the bubble size represents the number of DEGs, and the bubble color represents the Q-value. (b) Top 20 KEGG pathway enrichment of DEGs, the bubble size represents the number of DEGs, and the bubble color represents the Q-value
Fig. 6
Fig. 6
Expression comparison of 6 genes by qRT-PCR and RNA-Seq in group D and group DG. (a) BPIFCB; (b) SLC2A12; (c) ROMO1; (d) WNT5A; (e) SLC26A7; (f) TGFβ2

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