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Integrated analysis of lncRNA and gene expression in longissimus dorsi muscle at two developmental stages of Hainan black goats

文献类型： 外文期刊

作者： Gu, Lihong 1 ; He, Qijie 3 ; Xia, Wanliang 1 ; Rong, Guang 1 ; Wang, Dingfa 1 ; Li, Mao 1 ; Ji, Fengjie 1 ; Sun, Weiping 1 ; Cao, Ting 1 ; Zhou, Hanlin 1 ; Xu, Tieshan 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Trop Crop Genet Resource Res Inst, Haikou, Hainan, Peoples R China

2.Hainan Acad Agr Sci, Inst Anim Sci Vet, Haikou, Hainan, Peoples R China

3.Shengzhou Anim Husb Dev Ctr, Shaoxing City, Zhejiang, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.7； 五年影响因子：3.8 ）

ISSN： 1932-6203

年卷期： 2022 年 17 卷 10 期

页码：

收录情况： SCI

摘要： It is deemed that meat quality of kids' is better than that of adults' for Hainan black goat. Generally, meat quality is affected by many indicators, such as intramuscular fat (IMF) content, muscle fiber diameter and shear force. It is indicated that long non-coding RNAs (lncRNAs) play essential roles in meat quality of goats. However, it is unclear whether and how lncRNAs and genes play their roles in meat quality of Hainan Black goats. Here, we firstly compared the meat quality between two-month-old kids (kids) and adult goats (adults). Then, the lncRNA-seq and RNA-seq data were integrated and analyzed to explore the potential functions of lncRNAs and genes. The results showed that adults' IMF content and muscle fiber diameter were extremely significantly higher than that of kids (P<0.01). For the sequenced data, average 84,970,398, and 83,691,250 clean reads were obtained respectively for Kids and adults, among which similar to 96% were mapped to the reference genome of goats. Through analyzing, 18,242 goat annotated genes, 1,429 goat annotated lncRNAs and 2,967 novel lncRNAs were obtained. Analysis of differential expression genes (DEGs) and lncRNAs (DELs) showed that 328 DEGs and 98 DELs existed between kids and adults. Furthermore, functional enrichment analysis revealed that a number of DEGs and DELs were mainly associated with IMF. Primarily, DGAT2 expressed higher in adults than that in kids and CPT1A expressed higher in kids than that in adults. Both of them were overlapped by DEGs and targets of DELs, suggesting the two DEGs and the DELs targeted by the two DEGs might be the potential regulators of goat IMF deposition. Taken together, our results provide basic support for further understanding the function and mechanism of lncRNAs and genes in meat quality of Hainan black goats.

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