Integrated Metabolomics and Transcriptomics Analyses Reveal the Candidate Genes Regulating the Meat Quality Change by Castration in Yudong Black Goats (Capra hircus)

被引:3
|
作者
Yang, Songjian [1 ,2 ,3 ]
Zhang, Xinyue [1 ,2 ,3 ]
Li, Xingchun [1 ,2 ,3 ]
Zheng, Jikang [1 ,2 ,3 ]
Zhao, Le [1 ,2 ,3 ]
Fan, Chengli [1 ,2 ,3 ]
Zhao, Yongju [1 ,2 ,3 ]
机构
[1] Chongqing Key Lab Forage & Herbivore, Chongqing 400715, Peoples R China
[2] Chongqing Key Lab Herbivore Sci, Chongqing 400715, Peoples R China
[3] Southwest Univ, Coll Anim Sci & Technol, Chongqing 400715, Peoples R China
关键词
goat; meat; metabolomics; transcriptomics; castration; CARCASS TRAITS; SLAUGHTER; BREED;
D O I
10.3390/genes15010043
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Yudong black goats (YDGs) are a local breed in southwest China that possess unique meat qualities and produce a high meat yield, making them ideal models for studying goat meat quality. Castration may decrease off-odors, significantly change metabolites and improve meat quality. Using multi-omics techniques, this study focused on Yudong black goat wethers (YDW, n = 4) and Yudong black bucks (YDB, n = 4). The findings revealed that 33 differentially expressed genes (DEGs) and 279 significantly changed metabolites (SCMs) influenced goat meat quality by affecting fat accumulation and lipolysis regulatory processes. Herein, several candidate genes (IGF1, TNNT2, PPP2R2C, MAPK10 and VNN1, etc.) were identified that play a role in regulating meat quality, non-castrated and castrated, alongside a series of metabolites that may serve as potential meat quality biomarkers. Lipids (triglycerides, oxidized lipids_5-iso PGF2VI, ceramide (t18:1/36:2(2OH)) and Carnitine C20:5, etc.) were significantly higher in the castrated goats. These results revealed that lipids and hydrophilic metabolites were affected by castration, which might be beneficial in terms of goat meat quality. This study aimed to investigate the differences in meat quality between uncastrated and castrated male goats and the possible molecular regulatory mechanisms.
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页数:13
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