iTRAQ-based proteomic analysis provides novel insight into the postnatal testicular development of Hu sheep
文献类型: 外文期刊
作者: Pei, Shengwei 1 ; Luo, Jing 1 ; Weng, Xiuxiu 1 ; Xu, Yanli 2 ; Bai, Jingjing 3 ; Li, Fadi 1 ; Li, Wanhong 1 ; Yue, Xiangpeng 1 ;
作者机构: 1.Lanzhou Univ, Minist Educ, Engn Res Ctr Grassland Ind, State Key Lab Herbage Improvement & Grassland Agro, Lanzhou 730020, Peoples R China
2.Xinjiang Acad Anim Sci, Inst Anim Husb Qual Stand, Urumqi 830057, Peoples R China
3.Anim Husb & Vet Extens Stn Wuwei City, Wuwei 733000, Peoples R China
关键词: Sheep; Proteomic; Testicular development; Fertility
期刊名称:JOURNAL OF PROTEOMICS ( 影响因子:3.3; 五年影响因子:3.5 )
ISSN: 1874-3919
年卷期: 2023 年 286 卷
页码:
收录情况: SCI
摘要: Testicular development is an intricate and coordinated process in which thousands of proteins are involved in the regulation of somatic cells development and spermatogenesis. However, knowledge about the proteomic changes during postnatal testicular development in Hu sheep is still elusive. The study was conducted to characterize the protein profiles at four key stages during postnatal testicular development, including infant (0-month-old, M0), puberty (3-month-old, M3), sexual maturity (6-month-old, M6) and body maturity (12-month-old, M12), and between the large- and small-testis groups at 6 months in Hu sheep. Consequently, 5252 proteins were identified using isobaric tags for relative and absolute quantification (iTRAQ) and liquid chromatography-tandem mass spectrometry (LC-MS/MS) methods, and 465, 1261, 231 and 1080 differentially abundant proteins (DAPs) were found between M0_vs_M3, M3_vs_M6L, M6L_vs_M12, and M6L_vs_M6S, respectively. GO and KEGG analysis revealed that the majority of DAPs were involved in cellular process, metabolic process and immune systemrelated pathways. Furthermore, a protein-protein interaction network was constructed using 86 fertilityrelated DAPs, and five proteins with the highest degree were represented as hub proteins, including CTNNB1, ADAM2, ACR, HSPA2 and GRB2. This study provided new insights into the regulation mechanisms of postnatal testicular development and identified several potential biomarkers for selecting the high-fertility rams. Significance of the study: Testicular development is an intricate developmental process in which thousands of proteins are involved in regulating the somatic cells development and spermatogenesis. However, knowledge about the proteome changes during postnatal testicular development in Hu sheep is still elusive. This study provides comprehensive insights into the dynamic changes in the sheep testis proteome during postnatal testicular development. Additionally, testis size is positively correlated with semen quality and ejaculation volume, also for the merits of easy measurement, high heritability and selection efficiency, is an important indicator to select candidate rams with high fertility. The functional analyses of the acquired candidate proteins may help us gain a better understanding of the molecular regulatory mechanisms of testicular development.
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