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Variations in the diacylglycerol acyltransferase-1 ( DGAT1 ) and its association with meat tenderness in Gannan yaks ( Bos grunniens )

Gao, Xiaoli ; Shi, Bingang ; Shi, Xuehong ; [et al.]

Informa UK Limited ; 2020

In: Italian Journal of Animal Science Vol. 19, No. 1 ( 2020-12-14), p. 1026-1035

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In: Italian Journal of Animal Science, Informa UK Limited, Vol. 19, No. 1 ( 2020-12-14), p. 1026-1035

Type of Medium: Online Resource

ISSN: 1828-051X

URL: Article

DOI: 10.1080/1828051X.2020.1814169

Language: English

Publisher: Informa UK Limited

Publication Date: 2020

detail.hit.zdb_id: 2408994-1

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Identification of differentially expressed genes at different post-natal development stages of longissimus dorsi muscle in Tianzhu white yak

Shi, Bingang ; Shi, Xuehong ; Zuo, Zhi ; [et al.]

Elsevier BV ; 2022

In: Gene Vol. 823 ( 2022-05), p. 146356-

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In: Gene, Elsevier BV, Vol. 823 ( 2022-05), p. 146356-

Type of Medium: Online Resource

ISSN: 0378-1119

URL: Article

DOI: 10.1016/j.gene.2022.146356

RVK:

WA 15000

Language: English

Publisher: Elsevier BV

Publication Date: 2022

detail.hit.zdb_id: 1491012-3

SSG: 12

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Effects of Two Different Straw Pellets on Yak Growth Performance and Ruminal Microbiota during Cold Season

Wang, Xiangyan ; Shi, Bingang ; Zuo, Zhi ; [et al.]

MDPI AG ; 2023

In: Animals Vol. 13, No. 3 ( 2023-01-17), p. 335-

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In: Animals, MDPI AG, Vol. 13, No. 3 ( 2023-01-17), p. 335-

Abstract: The Tianzhu white yaks (Bos grunniens) live on the Qinghai–Tibet Plateau. During winter, a lack of resources and low nutritional levels seriously affect their growth performance. In this study, we aimed to explore the effect of supplementation straw pellets on the growth performance and ruminal microbiota of yaks. Overall, at 6 (6M, n = 24), 18 (18M, n = 26), 30 (30M, n = 20), 42 (42M, n = 24), and 54 (54M, n = 22) month old Tianzhu white yaks were selected (total n = 116) and divided into the mixed straw + grazing (MSG), corn straw + grazing (CSG), and the grazing control (G) groups according to age and gender. Their growth performance was measured as per different dietary treatments. The rumen microbial community structure and levels of VFAs were analyzed from the 6M, 30M, and 54M male yaks from each group. The supplementary diets led to an increase in the ADG, which was the highest in the MSG group. The MSG group exhibited the highest level of acetate and total VFAs (TVFAs) among the three groups (p 〈 0.05). In addition, the 16S rRNA sequencing results proved that the microbial composition was dominated by the members of Firmicutes and Bacteroidetes. Christensenellaceae R-7 group was significantly abundant in the CSG and MSG groups compared to the G group (p 〈 0.05). Principal coordinate analysis (PCoA) revealed that the bacterial community structure of rumen in the MSG and CSG groups was considerably different from that in the G group; 6M samples exhibited different rumen microbial diversity compared with the other samples. Correlation analysis revealed that Christensenellaceae_R-7_group was positively correlated with the levels of acetate, TVFAs, and ADG. These results demonstrated that mixed straw pellets improved the growth performance of yaks, increased the abundance of Christensenellaceae R-7_group involved in cellulose degradation in the rumen, and produced large amounts of VFAs, which were absorbed by yaks, thus increasing their ADG. This study provides new insights into the effects of straw pellet supplementation on the changes in the rumen microbiota and growth performance of yaks.

Type of Medium: Online Resource

ISSN: 2076-2615

URL: Article

DOI: 10.3390/ani13030335

Language: English

Publisher: MDPI AG

Publication Date: 2023

detail.hit.zdb_id: 2606558-7

SSG: 23

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Integration of ATAC-Seq and RNA-Seq Analysis to Identify Key Genes in the Longissimus Dorsi Muscle Development of the Tianzhu White Yak

Li, Jingsheng ; Chen, Zongchang ; Bai, Yanbin ; [et al.]

MDPI AG ; 2023

In: International Journal of Molecular Sciences Vol. 25, No. 1 ( 2023-12-21), p. 158-

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In: International Journal of Molecular Sciences, MDPI AG, Vol. 25, No. 1 ( 2023-12-21), p. 158-

Abstract: During the postnatal stages, skeletal muscle development undergoes a series of meticulously regulated alterations in gene expression. However, limited studies have employed chromatin accessibility to unravel the underlying molecular mechanisms governing muscle development in yak species. Therefore, we conducted an analysis of both gene expression levels and chromatin accessibility to comprehensively characterize the dynamic genome-wide chromatin accessibility during muscle growth and development in the Tianzhu white yak, thereby elucidating the features of accessible chromatin regions throughout this process. Initially, we compared the differences in chromatin accessibility between two groups and observed that calves exhibited higher levels of chromatin accessibility compared to adult cattle, particularly within ±2 kb of the transcription start site (TSS). In order to investigate the correlation between alterations in chromatin accessible regions and variations in gene expression levels, we employed a combination of ATAC-seq and RNA-seq techniques, leading to the identification of 18 central transcriptional factors (TFs) and 110 key genes with significant effects. Through further analysis, we successfully identified several TFs, including Sp1, YY1, MyoG, MEF2A and MEF2C, as well as a number of candidate genes (ANKRD2, ANKRD1, BTG2 and LMOD3) which may be closely associated with muscle growth and development. Moreover, we constructed an interactive network program encompassing hub TFs and key genes related to muscle growth and development. This innovative approach provided valuable insights into the molecular mechanism underlying skeletal muscle development in the postnatal stages of Tianzhu white yaks while also establishing a solid theoretical foundation for future research on yak muscle development.

Type of Medium: Online Resource

ISSN: 1422-0067

URL: Article

DOI: 10.3390/ijms25010158

Language: English

Publisher: MDPI AG

Publication Date: 2023

detail.hit.zdb_id: 2019364-6

SSG: 12

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Data_Sheet_1.xlsx

Bao, Gaoliang ; Liu, Xiu ; Wang, Jiqing ; [et al.]

Frontiers Media SA ; 2021

In: Frontiers in Veterinary Science Vol. 8 ( 2021-10-26)

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In: Frontiers in Veterinary Science, Frontiers Media SA, Vol. 8 ( 2021-10-26)

Abstract: Tibetan sheep is one of the dominant livestock at Qinghai-Tibet Plateau, which is the main food source of local people. In order to investigate the effect of slaughter age on meat quality, fatty acid profile and expression of myosin heavy chain (MyHC) isoform genes were analyzed in Tibetan sheep. A total of 24 Tibetan sheep including 4 months old (4 m), 1.5 years old (1.5 y), 3.5 years old (3.5 y), and 6 years old (6 y) were randomly selected. The results indicated that the MyHC IIx and MyHC IIb mRNAs increased with age, whereas MyHC IIa mRNA decreased. MyHC I mRNA was highest at 3.5 y. There were differences in the muscle fiber types of Tibetan sheep at different ages. Intramuscular fat (IMF) was highest at 1.5 y, the pH 45min and pH 24h value of 6 y sheep were lower than the other groups, the shear force increased with age ( p & lt; 0.05), and drip loss increased with age ( p & lt; 0.01). Tibetan sheep at 1.5 y had lower saturated fatty acid (SFA) contents and higher monounsaturated fatty acid (MUFA) contents ( p & lt; 0.05). Different muscle fiber types influence the meat quality and fatty acid composition of Tibetan sheep with increasing age. These results demonstrated the effect of age on meat quality of Tibetan sheep through regulation of expression of the MyHC isoforms which changed the myofiber types, and 1.5 y Tibetan sheep meat was more suitable for a healthy human diet.

Type of Medium: Online Resource

ISSN: 2297-1769

URL: Article

DOI: 10.3389/fvets.2021.689589

DOI: 10.3389/fvets.2021.689589.s001

Language: Unknown

Publisher: Frontiers Media SA

Publication Date: 2021

detail.hit.zdb_id: 2834243-4

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Image_1.TIF

Bao, Gaoliang ; Zhao, Fangfang ; Wang, Jiqing ; [et al.]

Frontiers Media SA ; 2022

In: Frontiers in Veterinary Science Vol. 9 ( 2022-4-1)

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In: Frontiers in Veterinary Science, Frontiers Media SA, Vol. 9 ( 2022-4-1)

Abstract: Circular RNAs (circRNAs) have a regulatory role in animal skeletal muscle development. In this study, RNA sequencing was performed to reveal the temporal regularity of circRNA expression and the effect of the circRNA–miRNA–mRNA ceRNA regulatory network on the meat quality of longissimus thoracis (LT) muscle in Tibetan sheep at different growth stages (4 months old, 4 m; 1.5 years old, 1.5 y; 3.5 years old, 3.5 y; 6 years old, 6 y). There were differences in the carcass performance and meat quality of Tibetan sheep at different ages. Especially, the meat tenderness significantly decreased ( p & lt; 0.05) with the increase of age. GO functional enrichment indicated that the source genes of the DE circRNAs were mainly involved in the protein binding, and myofibril and organelle assembly. Moreover, there was a significant KEGG enrichment in the adenosine 5′-monophosphate (AMP)-activated protein kinase (AMPK) signaling pathway, as well as the calcium signaling pathway, regulating the pluripotency of the stem cells. The circRNA–miRNA–mRNA ceRNA interaction network analysis indicated that circRNAs such as circ_000631, circ_000281, and circ_003400 combined with miR-29-3p and miR-185-5p regulate the expression of LEP, SCD , and FASN related to the transformation of muscle fiber types in the AMPK signaling pathway. The oxidized muscle fibers were transformed into the glycolytic muscle fibers with the increase of age, the content of intramuscular fat (IMF) was lowered, and the diameter of the muscle fiber was larger in the glycolytic muscle fibers, ultimately increasing the meat tenderness. The study revealed the role of the circRNAs in the transformation of skeletal muscle fiber types in Tibetan sheep and its influence on meat quality. It improves our understanding of the role of circRNAs in Tibetan sheep muscle development.

Type of Medium: Online Resource

ISSN: 2297-1769

URL: Article

DOI: 10.3389/fvets.2022.803758

DOI: 10.3389/fvets.2022.803758.s001

DOI: 10.3389/fvets.2022.803758.s002

Language: Unknown

Publisher: Frontiers Media SA

Publication Date: 2022

detail.hit.zdb_id: 2834243-4

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Characteristics and Functions of the Rumen Microbial Community of Cattle-Yak at Different Ages

Sha, Yuzhu ; Hu, Jiang ; Shi, Bingang ; [et al.]

Hindawi Limited ; 2020

In: BioMed Research International Vol. 2020 ( 2020-03-04), p. 1-9

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In: BioMed Research International, Hindawi Limited, Vol. 2020 ( 2020-03-04), p. 1-9

Abstract: A cattle-yak, which is a hybrid between a yak ( Bos grunniens ) and cattle ( Bos taurus ), is an important livestock animal, but basic questions regarding its physiology and environmental adaptation remain unanswered. To address this issue, the present study examined the species composition and functional characteristics of rumen microorganisms in the cattle-yak of different ages (2 and 3 years old) by metagenomic analysis. We found that rumen microbial community composition was similar at the two ages. Firmicutes, Fibrobacteres, Euryarchaeota, Bacteroidetes, and Proteobacteria were the predominant phyla, with Firmicutes accounting for the highest percentage of bacteria in 2-year-old (48%) and 3-year-old (46%) animals. Bacterial species involved in lignocellulose degradation were detected in the rumen of adult cattle-yaks including Ruminococcus flavefaciens , Ruminococcus albus , Fibrobacter succinogenes , and Prevotella ruminicola , with F. succinogenes being the most abundant. A total of 145,489 genes were annotated according to the Carbohydrate-active Enzyme database, which identified glycoside hydrolases as the most highly represented enzyme family. Further functional annotation revealed specific microflora and genes in the adult rumen that are potentially related to plateau adaptability. These results could explain the heterosis of the cattle-yak and provide insight into mechanisms of physiologic adaptation in plateau animals.

Type of Medium: Online Resource

ISSN: 2314-6133 , 2314-6141

URL: Article

DOI: 10.1155/2020/3482692

Language: English

Publisher: Hindawi Limited

Publication Date: 2020

detail.hit.zdb_id: 2698540-8

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Supplemental Information 6: (A) Venn diagram of OTU distribution. (B) Rarefaction curves

Sha, Yuzhu ; Hu, Jiang ; Shi, Bingang ; [et al.]

PeerJ ; 2021

In: PeerJ Vol. 9 ( 2021-03-18), p. e11048-

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In: PeerJ, PeerJ, Vol. 9 ( 2021-03-18), p. e11048-

Abstract: Cattle-yak, a hybrid offspring of yak ( Bos grunniens) and cattle ( Bos taurus ), inhabit the Qinghai-Tibet Plateau at an altitude of more than 3,000 m and obtain nutrients predominantly through grazing on natural pastures. Severe shortages of pasture in the cold season leads to reductions in the weight and disease resistance of grazing cattle-yak, which then affects their production performance. This study aimed to investigate the effect of supplementary feeding during the cold season on the rumen microbial community of cattle-yak. Six cattle-yak (bulls) were randomly divided into two groups—“grazing + supplementary feeding” (G+S) ( n = 3) and grazing (G) ( n = 3)—and rumen microbial community structure (based on 16S rRNA sequencing), volatile fatty acids (VFAs), and ruminal epithelial sodium ion-dependent glucose transporter 1 ( SGLT1 ) expression were assessed. There were significant differences in the flora of the two groups at various taxonomic classification levels. For example, Bacteroidetes, Rikenellaceae, and Rikenellaceae_RC9_gut_group were significantly higher in the G+S group than in the G group ( P 〈 0.05), while Firmicutes and Christensenellaceae_R-7_group were significantly lower in the G+S group than in the G group ( P 〈 0.05). Kyoto Encyclopedia of Genes and Genomes (KEGG) and Clusters of Orthologous Groups (COG) analyses revealed that functions related to carbohydrate metabolism and energy production were significantly enriched in the G+S group ( P 〈 0.05). In addition, the concentration of total VFAs, along with concentrations of acetate, propionate, and butyrate, were significantly higher in the G+S group than in the G group ( P 〈 0.05). Furthermore, SGLT1 expression in ruminal epithelial tissue was significantly lower in the G+S group ( P 〈 0.01). Supplementary feeding of cattle-yak after grazing in the cold season altered the microbial community structure and VFA contents in the rumen of the animals, and decreased ruminal epithelial SGLT1 expression. This indicated that supplementary feeding after grazing aids rumen function, improves adaptability of cattle-yak to the harsh environment of the Qinghai-Tibet Plateau, and enhances ability of the animals to overwinter.

Type of Medium: Online Resource

ISSN: 2167-8359

URL: Article

DOI: 10.7717/peerj.11048

DOI: 10.7717/peerj.11048/fig-1

DOI: 10.7717/peerj.11048/fig-2

DOI: 10.7717/peerj.11048/fig-3

DOI: 10.7717/peerj.11048/table-1

DOI: 10.7717/peerj.11048/table-2

DOI: 10.7717/peerj.11048/table-3

DOI: 10.7717/peerj.11048/supp-1

DOI: 10.7717/peerj.11048/supp-2

DOI: 10.7717/peerj.11048/supp-3

DOI: 10.7717/peerj.11048/supp-4

DOI: 10.7717/peerj.11048/supp-5

DOI: 10.7717/peerj.11048/supp-6

Language: English

Publisher: PeerJ

Publication Date: 2021

detail.hit.zdb_id: 2703241-3

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Effects of overexpression of ACSL1 gene on the synthesis of unsaturated fatty acids in adipocytes of bovine

Zhao, Zhidong ; Abbas Raza, Sayed Haidar ; Tian, Hongshan ; [et al.]

Elsevier BV ; 2020

In: Archives of Biochemistry and Biophysics Vol. 695 ( 2020-11), p. 108648-

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In: Archives of Biochemistry and Biophysics, Elsevier BV, Vol. 695 ( 2020-11), p. 108648-

Type of Medium: Online Resource

ISSN: 0003-9861

URL: Article

DOI: 10.1016/j.abb.2020.108648

RVK:

WA 15000

Language: English

Publisher: Elsevier BV

Publication Date: 2020

detail.hit.zdb_id: 1461378-5

SSG: 12

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Characterization of the promoter region of bovine ATP5B: roles of MyoD and GATA1 in the regulation of basal transcription

Zhao, Zhidong ; Raza, Sayed Haidar Abbas ; Luo, Yuzhu ; [et al.]

Informa UK Limited ; 2022

In: Animal Biotechnology Vol. 33, No. 4 ( 2022-08-01), p. 757-764

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In: Animal Biotechnology, Informa UK Limited, Vol. 33, No. 4 ( 2022-08-01), p. 757-764

Type of Medium: Online Resource

ISSN: 1049-5398 , 1532-2378

URL: Article

DOI: 10.1080/10495398.2020.1837848

Language: English

Publisher: Informa UK Limited

Publication Date: 2022

detail.hit.zdb_id: 2043243-4

SSG: 12

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