{"title":"Determining the effect of long non-coding RNA maternally expressed gene 3 (lncRNA MEG3) on the transcriptome profile in cervical cancer cell lines.","authors":"Solomon Arega, Suchanda Dey, Sunil Pani, Somya Ranjan Dash, Roli Budhwar, Chanakya Nath Kundu, Niladri Ganguly","doi":"10.1016/j.ygeno.2024.110957","DOIUrl":"https://doi.org/10.1016/j.ygeno.2024.110957","url":null,"abstract":"<p><p>This study investigates the role of the long non-coding RNA Maternally Expressed Gene3 (lncRNA MEG3) gene in cervical cancer, as evidenced by its downregulation in cancerous cell lines. The study demonstrates the effects of the overexpression of lncRNA MEG3 in cervical cancer cell lines, particularly in C33A and CaSki. Through comprehensive analyses, including Next-Generation Sequencing (NGS), alterations in global mRNA expression were analyzed. In C33A cells, 67 genes were upregulated, while 303 genes were downregulated. Similarly, in CaSki cells, 221 genes showed upregulation and 248 genes displayed downregulation. Gene ontology and KEGG pathway analyses were conducted to gain insight into potential mechanisms. Furthermore, the study delves into gene regulatory networks, uncovering intricate interactions among genes. The RNA sequencing data were confirmed for eight genes: PAX3, EGR2, ROR1, NRP1, OAS2, STRA6, CA9, and EDN2 by Real-time PCR. The findings illuminate the complex landscape of gene expression alterations and pathways impacted by the overexpression of lncRNA MEG3. The impact of MEG3 on the overall cervical cancer cells' mRNA profile is reported for the first time. New biomarkers for the prognosis of cervical cancer are also reported in this study. Moreover, identifying specific genes within the regulatory networks provides valuable insights into potential therapeutic targets for managing cervical cancer.</p>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142603976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GenomicsPub Date : 2024-11-01DOI: 10.1016/j.ygeno.2024.110954
Alexander Kaier , Selina Beck , Markus Ingold , José María Corral , Stephan Reinert, Uwe Sonnewald, Sophia Sonnewald
{"title":"Identification of heat stress-related genomic regions by genome-wide association study in Solanum tuberosum","authors":"Alexander Kaier , Selina Beck , Markus Ingold , José María Corral , Stephan Reinert, Uwe Sonnewald, Sophia Sonnewald","doi":"10.1016/j.ygeno.2024.110954","DOIUrl":"10.1016/j.ygeno.2024.110954","url":null,"abstract":"<div><div>The climate crisis impairs yield and quality of crucial crops like potatoes. We investigated the effects of heat stress on five morpho-physiological parameters in a diverse panel of 178 potato cultivars under glasshouse conditions. Overall, heat stress increased shoot elongation and green fresh weight, but reduced tuber yield, starch content and harvest index. Genomic information was obtained from 258 tetraploid and three diploid cultivars by a genotyping-by-sequencing approach using methylation-sensitive restriction enzymes. This resulted in an enrichment of sequences in gene-rich regions. Population structure analyses using genetic distances and hierarchical clustering revealed strong kinship but weak overall population structure cultivars. A genome-wide association study (GWAS) was conducted with a subset of 20 K stringently filtered SNPs to identify quantitative trait loci (QTL) linked to heat tolerance. We identified 67 QTL and established haploblock boundaries to narrow down the number of candidate genes. Additionally, GO-enrichment analyses provided insights into gene functions. Heritability and genomic prediction were conducted to assess the usability of the collected data for selecting breeding material. The detected QTL might be exploited in marker-assisted selection to develop heat-resilient potato cultivars.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142544875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"bta-miR-224 regulates milk fat metabolism by targeting FABP4 in bovine mammary epithelial cells.","authors":"Chuanchuan Wang, Jinyan Zhao, Xiaofang Feng, Wei Zhao, Ruoshuang Ma, Baojun Yu, Lin Xue, Hua Wang, Yafei Chen, Juan Zhang, Yaling Gu","doi":"10.1016/j.ygeno.2024.110955","DOIUrl":"https://doi.org/10.1016/j.ygeno.2024.110955","url":null,"abstract":"<p><p>Milk fat is produced and secreted by the mammary gland, which is mainly regulated by diet and gene-molecule network. Therefore, understanding the molecular mechanism of milk fat synthesis is of practical significance for improving milk quality. Fatty acid-binding protein 4 (FABP4) is a candidate messenger RNA (mRNA) closely linked to milk fat metabolism obtained from transcriptomic analysis of mammary epithelial cells of cows in the pre-existing high- and low-milk-fat groups, and its expression pattern and function are still unclear. The qRT-PCR results depicted that FABP4 was highly expressed in bovine mammary epithelial cells (BMECs) in breast tissues and the high milk fat group. Subsequently, the regulatory effects of FABP4 on BMECs were analyzed by CCK8, EdU, and flow cytometry, and the results demonstrated that FABP4 inhibited the proliferation and viability of BMECs and promoted their apoptosis. Next, the effect of FABP4 on milk lipid metabolism was explored. pEGFP-N1-FABP4 was transfected into BMECs, and FABP4 upregulated the expression levels of the milk lipid marker genes XDH, PPARG, and ACSS2, and promoted the formation of triglycerides (TGs), cholesterol, lipid droplets, and β-casein. Strong interactions between FABP4 and PPARG were identified using STRING prediction. Western blotting revealed that FABP4 interacted with PPARG to promote PPARG expression, while the opposite result was observed after interfering with FABP4. The gene regulation of microRNA (miRNA) is essential for fatty acid metabolism and synthesis. Predicted by website and combined with pre-miRNA transcriptome sequencing results, we hypothesized that FABP4 might be the target gene of bta-miR-224. The results of the dual-luciferase reporter gene and qRT-PCR revealed that bta-miR-224 negatively regulated FABP4 expression by targeting the 3'-UTR of FABP4. By exploring the function of bta-miR-224, we observed that bta-miR-224 mimics downregulated the expression of the milk fat marker genes AGPAT6, ACSS2, and XDH and inhibited TG synthesis and lipid droplet secretion. However, the bta-miR-224 inhibitor depicted the opposite results. In conclusion, FABP4 plays a crucial role in regulating BMEC proliferation and differentiation. Bta-miR-224 targeting FABP4 may promote biological processes such as TG synthesis and lipid droplet formation through PPARG, which lays a solid foundation for further analysis of the functional mechanism of milk lipid metabolism in dairy cows from a miRNA-mRNA perspective.</p>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142557639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GenomicsPub Date : 2024-10-18DOI: 10.1016/j.ygeno.2024.110952
Xuyu Xiang , Yi Zhu , Tianyin Wang , Peng Ding , Ke Cheng , Yingzi Ming
{"title":"Association between salivary microbiota and tacrolimus pharmacokinetic variability in kidney transplant","authors":"Xuyu Xiang , Yi Zhu , Tianyin Wang , Peng Ding , Ke Cheng , Yingzi Ming","doi":"10.1016/j.ygeno.2024.110952","DOIUrl":"10.1016/j.ygeno.2024.110952","url":null,"abstract":"<div><div>Kidney transplantation (KT) serves as a highly effective treatment for end-stage renal disease (ESRD). Nonetheless, the administration of tacrolimus, a commonly used immunosuppressant in KT, faces challenges due to the lack of dependable biomarkers for its efficacy and the considerable variability in tacrolimus pharmacokinetics (TacIPV). In this study, 183 saliva samples from 48 KT recipients under tacrolimus therapy, alongside 9 healthy control samples, were subjected to 16S rRNA sequencing. The analysis revealed significant differences in the composition of salivary microbiota among KT recipients, patients with ESRD, and healthy controls. Moreover, trough blood concentrations (C<sub>0</sub>) of tacrolimus were associated with alterations in microbiota composition. Notably, <em>Capnocytophage</em> consistently exhibited a negative correlation in both group-level and individual trends. Furthermore, distinct taxa were identified that effectively distinguished recipients with varying TacIPV, as demonstrated by a cross-validation random forest model (mean AUC = 0.7560), with <em>Anaerolinea</em> emerging as a prominent contributor to the classifier. These findings suggest that salivary microbiota is closely linked to tacrolimus C<sub>0</sub> levels and could aid clinicians in differentiating KT recipients based on TacIPV.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GenomicsPub Date : 2024-10-16DOI: 10.1016/j.ygeno.2024.110953
Juan Zhao , Yuelei Zhao , Hongyu Qin , Yun Ye , Liwei Zhang , Ruike Ding , Wenbin Cao , Yanru Zhang , Chenjing Duan , Haoze Leng , Yandong Li , Bo Wang , Liangshuo Hu , Enqi Liu , Pengxiang Qu
{"title":"Characterization of small RNAs in the spleen of MASH in a non-human primate model","authors":"Juan Zhao , Yuelei Zhao , Hongyu Qin , Yun Ye , Liwei Zhang , Ruike Ding , Wenbin Cao , Yanru Zhang , Chenjing Duan , Haoze Leng , Yandong Li , Bo Wang , Liangshuo Hu , Enqi Liu , Pengxiang Qu","doi":"10.1016/j.ygeno.2024.110953","DOIUrl":"10.1016/j.ygeno.2024.110953","url":null,"abstract":"<div><div>Metabolic dysfunction-associated steatotic liver disease (MASLD) and its advanced stage, metabolic dysfunction-associated steatohepatitis (MASH), are increasingly recognized as a global health issue. This study examines the role of small RNAs in the spleen of MASH using a non-human primate model. We performed high-throughput small RNA sequencing on spleen tissues from MASH-primates, revealing significant alterations in the expression of small non-coding RNAs, especially miRNAs. Notably, miR-96, miR-182, miR-183, and miR-122 showed differential expression in MASH spleens. Predictive and validation studies have identified potential target genes, such as PTX3 and NFIX, that were significantly dysregulated in spleens of MASH. These findings characterized small RNAs in spleen of MASH and offer a novel insight for further research for MASH.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GenomicsPub Date : 2024-10-16DOI: 10.1016/j.ygeno.2024.110943
Wei Cong, Jingfu Sun, Zhanyu Hao, Maosong Gong, Jianing Liu
{"title":"PLOD1 promote proliferation and migration with glycolysis via the Wnt/β-catenin pathway in THCA","authors":"Wei Cong, Jingfu Sun, Zhanyu Hao, Maosong Gong, Jianing Liu","doi":"10.1016/j.ygeno.2024.110943","DOIUrl":"10.1016/j.ygeno.2024.110943","url":null,"abstract":"<div><div>THCA (Thyroid carcinoma) is the most common endocrine malignancy in the world. The PLOD1 is highly expressed in THCA, but the mechanism is still unclear. It is found that the cell proliferation and migration were inhibited in si-PLOD1 group, and promoted with PLOD1 overexpression. MAZ is the transcription factor of PLOD1. The cell activities induced MAZ were reversed by si-PLOD1. The Glucose uptake, lactate production and ATP/ADP ratio were decreased with si-PLOD1. The glycolysis related proteins GLUT1, HK2, PFKP, PKM2, LDHA and Wnt/β-catenin pathway proteins WNT5A, cyclin D1, β-catenin were inhibited, GSK-3β is increased in si-PLOD1 group. BML-284 could reversed the si-PLOD1 effects on cell activities and Wnt/β-catenin pathway. The tumor xenografts were inhibited in si-PLOD1 group. As a potential therapeutic target, PLOD1 is regulated by MAZ in THCA. PLOD1 depletion could inhibit THCA cell proliferation and metastasis by glycolysis, which is inhibited by Wnt/β-catenin pathway in THCA.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Metagenomic analysis reveals effects of gut microbiome in response to neoadjuvant chemoradiotherapy in advanced rectal cancer","authors":"Hao Chen , Meizi Zeng , Syeda Sundas Batool , Yiming Zhao , Zheng Yu , Jumei Zhou , Ke Liu , Jing Huang","doi":"10.1016/j.ygeno.2024.110951","DOIUrl":"10.1016/j.ygeno.2024.110951","url":null,"abstract":"<div><div>Neoadjuvant chemoradiotherapy can enhance survival rate of patients with advanced rectal cancer, but its effectiveness varies considerably. Previous studies have indicated that gut microbes may serve as biomarkers for predicting treatment efficacy. However, the specific roles of the gut microbiome in patients who have good response to nCRT remains unclear. In this study, shotgun metagenomic sequencing technology was used to analyze the fecal microbiome of patients with varying responses to nCRT. Our findings revealed that beneficial intestinal bacteria and genes from different metabolic pathways (carbohydrate metabolism, amino acid metabolism, and sulfur metabolism) were significantly enriched in patients with good response. Additionally, causal relationship in which microbial-derived GDP-D-rhamnose and butyrate could influence the response to nCRT was clarified. Our results offered new insights into the different response to nCRT, and provided valuable reference points for improving the effectiveness of nCRT in patients with advanced colorectal cancer.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GenomicsPub Date : 2024-10-09DOI: 10.1016/j.ygeno.2024.110949
Miaoshu Zhang , Xuejiao An , Chao Yuan , Tingting Guo , Binpeng Xi , Jianbin Liu , Zengkui Lu
{"title":"Integration analysis of transcriptome and metabolome revealed the potential mechanism of spermatogenesis in Tibetan sheep (Ovis aries) at extreme high altitude","authors":"Miaoshu Zhang , Xuejiao An , Chao Yuan , Tingting Guo , Binpeng Xi , Jianbin Liu , Zengkui Lu","doi":"10.1016/j.ygeno.2024.110949","DOIUrl":"10.1016/j.ygeno.2024.110949","url":null,"abstract":"<div><div>Testis has an indispensable function in male reproduction of domestic animals. Numerous genes and metabolites were related to testicular development and spermatogenesis. However, little is known about the biological regulation pathways associated with fecundity in male Tibetan sheep. In this study, Testes were collected from Huoba Tibetan sheep (HB, 4614 m) and Gangba Tibetan sheep (GB, 4401 m) at extreme high altitude, and Alpine Merino sheep (AM, 2500 m, control group) at medium-high altitude, investigating the genes and metabolites levels of them. The histological analysis of testicular tissue using hematoxylin-eosin (HE) staining was performed for Tibetan sheep and Alpine Merino sheep, and the testes of them were analyzed by transcriptomics and metabolomics to explore the potential mechanism of testicular development and spermatogenesis. The statistical results showed that the cross-sectional area of testicular seminiferous tubules, diameter of seminiferous tubules, and spermatogenic epithelium thickness were significantly smaller in HB and GB than in AM (<em>P</em> < 0.05). Overall, 5648 differentially expressed genes (DEGs) and 336 differential metabolites (DMs) were identified in three sheep breeds, which were significantly enriched in spermatogenesis and other related pathways. According to integrated metabolomic and transcriptomic analysis, glycolysis/gluconeogenesis, AMPK signaling pathway, and TCA cycle, were predicted to have dramatic effects on the spermatogenesis of Tibetan sheep. Several genes (including <em>Wnt2</em>, <em>Rab3a</em>, <em>Sox9</em>, <em>Hspa8</em>, and <em>Slc38a2</em>) and metabolites (including L-histidinol, Glucose, Fumaric acid, Malic acid, and Galactose) were significantly enriched in pathways related to testicular development and spermatogenesis, and might affect the reproduction of Tibetan sheep by regulating the acrosome reaction, meiotic gene expression, and the production of sex hormones. Our results provide further understanding of the key genes and metabolites involved in testicular development and spermatogenesis in Tibetan sheep.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142400006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GenomicsPub Date : 2024-10-09DOI: 10.1016/j.ygeno.2024.110948
Jing Tang , Yi-min Li , Yan Wang , Feng Yan , Zhao Feng , Rui-hua LV , Jing Gao , Liang Peng , Xiao-chen Hu , Gang Zhang
{"title":"Comparative transcriptome analysis and identification of candidate bZIP transcription factors involved in anthraquinone biosynthesis in Rheum officinale Baill","authors":"Jing Tang , Yi-min Li , Yan Wang , Feng Yan , Zhao Feng , Rui-hua LV , Jing Gao , Liang Peng , Xiao-chen Hu , Gang Zhang","doi":"10.1016/j.ygeno.2024.110948","DOIUrl":"10.1016/j.ygeno.2024.110948","url":null,"abstract":"<div><div>Rhubarb is a traditional medicinal plant in China, whose pharmacological effects derive mainly from its anthraquinones. However, the regulatory mechanism affecting anthraquinone biosynthesis in <em>R. officinale</em> remains poorly understood. We assembled a high-quality, full-length transcriptome using single-molecule real-time (SMRT) sequencing. 274 unigenes potentially involved in the biosynthesis of anthraquinones, including those in the shikimate, polyketide, MVA and MEP pathways, were identified based on full-length transcriptome. Differentially expressed genes (DEGs) induced by MeJA treatment and DEGs between different tissues were identified through next-generation sequencing (NGS), revealing the genes that may be involved in the biosynthesis of anthraquinones. The basic leucine zipper (bZIP) transcription factors of <em>R. officinale</em> were systematically identified. Key genes such as <em>RobZIP50</em> and <em>RobZIP53</em> were systematically identified and found to be associated with anthraquinone biosynthesis in <em>R. officinale</em> through differential expression, co-expression and protein interaction analyses. <em>RobZIP50</em> and <em>RobZIP53</em> were highly expressed in roots and rhizomes, and significantly increased after 12 h of MeJA treatment. Additionally, both RobZIP50 and RobZIP53 were localized exclusively in the nucleus, with RobZIP53 showing significant transcriptional activity. Taken together, our results suggest that RobZIP53 may play a role in regulating anthraquinone biosynthesis in <em>R. officinale</em>.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142389551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GenomicsPub Date : 2024-10-09DOI: 10.1016/j.ygeno.2024.110950
Yiting Yang , Mailin Gan , Chengming Liu , Zhongwei Xie , Meng Wang , Chengpeng Zhou , Wenqiang Cheng , Lei Chen , Shunhua Zhang , Ye Zhao , Lili Niu , Yan Wang , Jingyong Wang , Linyuan Shen , Li Zhu
{"title":"Analysis of genetic evolutionary differences among four Tibetan pig populations in China","authors":"Yiting Yang , Mailin Gan , Chengming Liu , Zhongwei Xie , Meng Wang , Chengpeng Zhou , Wenqiang Cheng , Lei Chen , Shunhua Zhang , Ye Zhao , Lili Niu , Yan Wang , Jingyong Wang , Linyuan Shen , Li Zhu","doi":"10.1016/j.ygeno.2024.110950","DOIUrl":"10.1016/j.ygeno.2024.110950","url":null,"abstract":"<div><div>Tibetan pigs are a locally bred domestic pig breed originating from the Tibetan Plateau in China. They can be categorized into four distinct groups based on their geographical locations: Sichuan Tibetan pigs, Tibetan pigs from Tibet, Yunnan Tibetan pigs, and Gansu Tibetan pigs. This study aimed to explore population diversity, genetic structure and selection signals among Tibetan pigs in four Chinese national nature reserves. The results show that there is different observed heterozygosity among Tibetan pig populations (0.1957–0.1978). Ratio of runs of homozygosity (F<sub>roh</sub>) calculation of four Tibetan pig populations by runs of homozygosity (ROH) revealed the presence of inbreeding within the population (0.0336–0.0378). Analysis of the genetic structure demonstrated distinct population stratification among the four Tibetan pig populations, with each showing relatively independent evolutionary directions. Furthermore, Five methods (FST, Piratio, ROD, Tajima's D, XP-CLR) were used to artificially select evolutionary trajectories. The results mainly involved processes such as DNA repair, immune regulation, muscle fat deposition and adaptation to hypoxia. In conclusion, this study enhances our understanding of the genetic characteristics of Tibetan pig populations and provides a theoretical reference for the conservation of resources across different populations of Tibetan pigs.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142406321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}