Genomics最新文献

{"title":"ScASplicer: An interactive shiny/R application for alternative splicing analysis of single-cell sequencing","authors":"Pengwei Hu ,&nbsp;Jixiang Xing ,&nbsp;Wuritu Yang ,&nbsp;Hongxia Chi ,&nbsp;Yongqiang Xing ,&nbsp;Yongchun Zuo","doi":"10.1016/j.ygeno.2025.111116","DOIUrl":"10.1016/j.ygeno.2025.111116","url":null,"abstract":"<div><div>Alternative splicing (AS) in single cell is crucial for cell heterogeneity, gene expression and transcriptome diversity. However, given the complexity of AS analysis in single-cell RNA sequencing (scRNA-seq), employing a continuous and iterative process to refine data and uncover relevant latent information is crucial. While several tools have been developed to address various aspects of scRNA-seq AS analysis, a versatile and user-friendly web application that can perform all essential steps of AS analysis on scRNA-seq data is still lacking. Here, we made significant advancements in improving the usability and functionality of MARVEL. Firstly, we developed a Python package that can easily and efficiently generate input files, reducing the technical barrier. Secondly, we developed a Shiny-based R package that extends MARVEL's analysis capabilities to multiple cell populations, enabling interactive, code-free ex-ploration of AS and gene expression dynamics at single-cell level. The package, named ScASplicer (Single-Cell Alternative Splicing Shiny Explorer), provides a user-friendly platform for more efficient and comprehensive single-cell AS analysis.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111116"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212398","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}

{"title":"Identifying and characterizing a novel APC promoter 1B deletion in a Chinese family with familial adenomatous polyposis","authors":"Huihan Ai ,&nbsp;Hang Yang ,&nbsp;Chai Luv ,&nbsp;Guanglong Chen ,&nbsp;Weijie Zhao ,&nbsp;Zikun Wu ,&nbsp;Shijun Xu ,&nbsp;Jie Ma ,&nbsp;Kangdong Liu ,&nbsp;Zhi Li","doi":"10.1016/j.ygeno.2025.111119","DOIUrl":"10.1016/j.ygeno.2025.111119","url":null,"abstract":"<div><h3>Background</h3><div>Typical cases of familial adenomatous polyposis (FAP) exhibit variants in the coding sequence of adenomatous polyposis coli (<em>APC</em>) gene coding sequence. Families without detectable APC variants can't benefit from genetic testing.</div></div><div><h3>Methods</h3><div>We investigated a FAP family with APC variant negativity using exome sequencing, genome sequencing. Quantitative real-time PCR, single nucleotide polymorphism analysis, sanger sequencing, and organoid drug sensitivity assays.</div></div><div><h3>Results</h3><div>We discovered a novel deletion spanning about 100 kb upstream of the APC transcription start site, covering the entire <em>APC</em> 1B promoter, in all affected members of the FAP family. The proband's blood RNA revealed the silencing of one APC allele, linked to this deletion. This deletion suppressed <em>APC</em> gene transcription. Additionally, this family exhibited unique extracolonic manifestations, and their response to FAP treatment drugs was similar to that of typical FAP cases. Despite this, conventional anticancer treatments led to favorable outcomes for the patients.</div></div><div><h3>Conclusion</h3><div>These findings indicated that <em>APC</em> exon variant-negative FAP patients may have deletions in the promoter region, particularly the 1B region. Their clinical features and treatment responses differ from other FAP cases, emphasizing the importance of personalized management strategies tailored to their variant profile.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111119"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212400","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}

{"title":"Trem2-dependent Insl3 regulation via Dap12-Syk-PI3K pathway: A new pathogenic mechanism in cryptorchidism","authors":"Songyi Ye ,&nbsp;Chenyu Wu ,&nbsp;Shuaijing Huang ,&nbsp;Haowen Fan ,&nbsp;Zhiqing Zhang ,&nbsp;Jinling Chen ,&nbsp;Wenliang Ge","doi":"10.1016/j.ygeno.2025.111120","DOIUrl":"10.1016/j.ygeno.2025.111120","url":null,"abstract":"<div><div>Cryptorchidism, affecting 1 %–9 % of male neonates, represents one of the most prevalent congenital genitourinary anomalies. Studies highlighted Leydig cell derived insulin-like 3 (Insl3) as pivotal in the initial phase of testicular descent. However, the pathogenic mechanisms underlying decreased Insl3 remain poorly elucidated. Here, we showed that triggering receptor expressed on myeloid cells-2 (Trem2) acted as a central mediator in macrophage-Leydig cell communication, influencing testicular descent <em>via</em> Insl3 regulation. In boys with cryptorchidism, Trem2 in testes was markedly downregulated. 63.16 % of <em>Trem2</em>^−/− mice exhibited cryptorchidism and abnormal sperm motility and morphology, concomitant with decreased Leydig cells and Insl3. <em>In vitro</em> studies using human testicular cultures also revealed that Trem2 expression positively correlated with Insl3 expression. Mechanistically, ketoconazole elevated TNF-α due to suppression of the Trem2-Dap12-Syk-PI3K axis, ultimately disrupting total Leydig cell number and Insl3 expression. Collectively, these findings unveil Trem2 as a paracrine sentinel for Insl3-dependent testicular descent, thereby mitigating cryptorchidism.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111120"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212025","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}

{"title":"Unmapped reads from whole-genome sequencing data reveal pathogen diversity in European and African cattle breeds","authors":"Daniil Ruvinskiy ,&nbsp;Kisun Pokharel ,&nbsp;Rodney Okwasiimire ,&nbsp;Rayner Gonzalez-Prendes ,&nbsp;Catarina Ginja ,&nbsp;Nasser Ghanem ,&nbsp;Donald R. Kugonza ,&nbsp;Mahlako L. Makgahlela ,&nbsp;Heli Lindeberg ,&nbsp;Melak Weldenegodguad ,&nbsp;Juha Kantanen ,&nbsp;Martijn Derks ,&nbsp;Richard P.M.A. Crooijmans","doi":"10.1016/j.ygeno.2025.111108","DOIUrl":"10.1016/j.ygeno.2025.111108","url":null,"abstract":"<div><div>Climate change is impacting the global spread of infectious diseases, altering pathogen distribution and transmission, and threatening human and animal health. This study investigates the presence of potential pathogens in blood within unmapped reads obtained from whole-genome sequencing (WGS) data of various cattle breeds across geographically diverse regions, including South Africa, Uganda, Egypt, Portugal, The Netherlands, and Finland. Unmapped reads were extracted, assembled into contigs, and subjected to taxonomic analysis based on an extensive literature search. The analysis revealed significant geographic variation in pathogen composition, with breeds in the Southern Hemisphere (Uganda, Egypt, and South Africa) showing higher pathogen alignment counts while Northern breeds (particularly from Finland) exhibited lower diversity and counts. Portugal, representing a transition zone, exhibited a higher burden of parasites and tick-borne related pathogens than their Northern counterparts, which were also prevalent in Southern Hemisphere breeds such as <em>Theileria parva</em>, <em>Anaplasma platys</em>, <em>Theileria orientalis</em>, and <em>Babesia bigemina,</em> which is in line with the known capacity of these breeds to cope with local pathogens. Dutch breeds were found to harbor <em>Escherichia coli O157</em>, a known public health concern. The study provided key insights into emerging disease risks influenced by climate change and livestock management practices, but also on the need to investigate possible adaptive responses underlying disease resistance in some breeds. This study highlights the potential for climate-driven variations in disease ecology and transmission, emphasizing the need for integrating genomic and environmental data, and is currently the most comprehensive study to date investigating the microbial diversity present in unmapped reads obtained from WGS data of cattle populations.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111108"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145052701","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}

{"title":"Identification of cross-talk pathways and PANoptosis-related genes in periodontitis and atherosclerosis by bioinformatics analysis and machine learning","authors":"Nan Yang ,&nbsp;Shiqun Sun ,&nbsp;Xiantao Chen ,&nbsp;Tongtong Yan ,&nbsp;Nan Gu ,&nbsp;Zhihui Liu","doi":"10.1016/j.ygeno.2025.111106","DOIUrl":"10.1016/j.ygeno.2025.111106","url":null,"abstract":"<div><h3>Background and objectives</h3><div>Periodontitis(PD) is a chronic inflammatory disease that poses a serious threat to oral health and is one of the risk factors for atherosclerosis(AS). A growing body of evidence suggests that the two diseases are closely related. However, current studies have yet to fully understand the common genes and common mechanisms between PD and AS. This study aimed to screen the tandem genes of PD and AS and the potential relationship between the tandem genes and pan-apoptosis-related genes. By analyzing the relationship between the core genes and immune cells, it will provide new targets for clinical treatment.</div></div><div><h3>Materials and methods</h3><div>The PD and AS datasets were downloaded from the GEO database and differential expression analysis was performed to obtain DEGs. AS-related genes were downloaded from the GeneCards database, and PANoptosis-related genes were obtained through literature review. AS-related genes were merged into AS DEGs, and overlapping DEGs were cross-talk genes for PD and AS. Protein-protein interaction (PPI) network was constructed using the STRING database and Cytoscape software. Pearson coefficients were used to calculate the correlation between cross-talk genes and PANoptosis-related genes in the PD and AS datasets. The intersection of cross-talk genes and PANoptosis-related genes was defined as cross-talk-PANoptosis genes. Core genes were screened using ROC analysis and XGBoost. PPI sub-network, gene-biological processes and gene-pathway networks were constructed based on the core genes. In addition, immune infiltration on the PD and AS datasets was analyzed using the CIBERSORT algorithm.</div></div><div><h3>Results</h3><div>285 cross-talk genes overlapped between PD DEGs and AS DEGs. The intersection of cross-talk genes with 109 PANoptosis-related genes was defined as cross-talk-PAoptosis genes. ROC and XGBoost showed that MLKL, ZBP1, CD14, and IL6 were more accurate than the other cross-talk-PAoptosis genes in predicting the diseases, and were better in terms of the overall characteristics. GO and KEGG analyses showed that these four core genes were involved in the immune and inflammatory response of the organism. The results of immune infiltration showed that Monocytes and Mast cells resting were altered to a greater extent in PD and AS patients. Finally, 24 drugs related to the core genes were retrieved from the DGIDB database.</div></div><div><h3>Conclusions</h3><div>This study reveals the joint mechanism between PD and AS associated with PANoptosis. Analyzing the four core genes and immune cells may provide new therapeutic directions for the pathogenesis of PD combined with AS.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111106"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045581","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}

{"title":"Regulation of alternative splicing of retinol metabolism in lipid abnormality of PCOS liver by Cyp4a32 and Hsd17b6","authors":"Guangyi Chen ,&nbsp;Junhui Zhang ,&nbsp;Jiayi Wang ,&nbsp;Wenxiu Chen ,&nbsp;Haoran Li ,&nbsp;Haoran Su ,&nbsp;Shaoyi Dai ,&nbsp;Yumei Tao ,&nbsp;Yunxia Cao ,&nbsp;Qiang Hong ,&nbsp;Fenfen Xie","doi":"10.1016/j.ygeno.2025.111136","DOIUrl":"10.1016/j.ygeno.2025.111136","url":null,"abstract":"<div><div>Liver lipid disorders are common in polycystic ovary syndrome (PCOS) patients. A DHEA-induced PCOS mouse model exhibited elevated liver triglyceride (TG) and total cholesterol (TC), reinforcing this association between liver lipids and PCOS. Liver transcriptomic sequencing revealed that 168 differentially expressed genes and 285 alternative splicing (AS) event genes, significantly enriching retinol metabolism. Further combined analyses showed the Cyp4a32 and Hsd17b6 genes were abnormally expressed in the livers of PCOS mice. AS analysis revealed that Cyp4a32 had upregulated exon skipping (SE), including SE and mutually exclusive exons (MXE), while among the modes of SE, MXE, and alternative 3′ splice site (A3SS), Hsd17b6 showed downregulated MXE. These findings suggest that Cyp4a32 and Hsd17b6 may change the retinol metabolism by modulating AS patterns, which then dysregulate hepatic lipid metabolism in PCOS. This study highlights potential therapeutic targets for PCOS-associated liver lipid disorders.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111136"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145285962","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}

{"title":"Construction of a genome-wide linkage map and QTL mapping for growth and hypoxia tolerance traits in Chinese longsnout catfish (Leiocassis longirostris)","authors":"Fenfei Liang ,&nbsp;Zhiru Yang ,&nbsp;Wei Liu ,&nbsp;Faling Zhang ,&nbsp;Xia Liang ,&nbsp;Cheng Zhao ,&nbsp;Guosong Zhang","doi":"10.1016/j.ygeno.2025.111157","DOIUrl":"10.1016/j.ygeno.2025.111157","url":null,"abstract":"<div><div>The Chinese longsnout catfish (<em>Leiocassis longirostris</em>) is an important freshwater aquaculture species, and the selective breeding of fast-growth and hypoxia tolerance population will have a positive impact on its industry. In order to promote the breeding process of Chinese longsnout catfish, construction of the genetic linkage map and identification of molecular markers associated with fast-growth and hypoxia tolerance is critical for the marker-assisted selection (MAS) of Chinese longsnout catfish. In the present study, whole-genome resequencing was used to construct a high-density genetic linkage map of the Chinese longsnout catfish. The map containing 2946 bin markers was distributed over 26 linkage groups (LGs) with a total genetic coverage of 1980.76 cM and an average density of 0.67 cM. Based on the genetic map, quantitative trait locus (QTL) mapping results suggested that 17 QTLs associated with growth traits and 1 QTL associated with hypoxia tolerance were identified in eight LGs with the phenotypic variability explained (PVE) ranged from 5.1 % to 9.3 %. Four SNP loci from these QTLs were associated with the phenotypic traits validated by Kompetitive Allele Specific PCR or Sanger sequencing. In addition, the expression of three candidate genes for growth traits and five candidate genes for hypoxia tolerance was examined in different growth speed populations and the process of hypoxia exposure and reoxygenation, respectively. The high-density genetic linkage map and QTLs for growth traits and hypoxia tolerance obtained in the present study could further provide the basis for genetic breeding and molecular marker-assisted breeding of Chinese longsnout catfish.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111157"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568304","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}

{"title":"TIMP1: A novel immune-related signature associated with invasiveness and inhibition of pituitary adenoma","authors":"Hongyu Wu ,&nbsp;Yu Zhang ,&nbsp;Xin Ma ,&nbsp;Zenghua Mi ,&nbsp;Zhijun Yang","doi":"10.1016/j.ygeno.2025.111140","DOIUrl":"10.1016/j.ygeno.2025.111140","url":null,"abstract":"<div><div>The invasiveness of pituitary adenomas is closely related to the tumour immune microenvironment. This study aimed to identify immune-related genes associated with IPAs. Transcriptomic data from 32 patient-derived samples were analysed to screen immune-related differentially expressed genes between IPAs and non-invasive pituitary adenomas. Weighted gene co-expression network analysis of merged datasets (GSE26966 and GSE51618) was performed to identify hub genes, which were then intersected with immune-related DEGs. Least absolute shrinkage and selection operator regression and support vector machine algorithms consistently identified tissue inhibitor of metalloproteinases 1 (<em>TIMP1</em>) as a key immune-associated invasive gene. Multi-omics validation confirmed significant downregulation of <em>TIMP1</em> in IPAs. Functional enrichment, single-sample gene set enrichment analysis, CIBERSORT, and immune checkpoint profiling linked TIMP1 to macrophage infiltration and immune regulation. Immunohistochemistry and in vitro experiments further demonstrated that TIMP1 overexpression inhibited tumour-cell proliferation, invasion, and migration. Collectively, these findings suggest that TIMP1 downregulation may promote IPA progression through immune dysregulation.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111140"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145328733","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}

{"title":"High-fat diet promotes kidney lipid droplet deposition contributing to the pathogenesis of obesity-related glomerulopathy in mice through gut microbial metabolism","authors":"Kai-Wen Cai ,&nbsp;Ying-Ying Xie ,&nbsp;Zi-Yan Deng ,&nbsp;Zong-Chao Yu ,&nbsp;Hong-Wei Wu ,&nbsp;Zhuang-Feng Weng ,&nbsp;Zhen-Chuan Lin ,&nbsp;Bin Xia ,&nbsp;Xiao-Hua Wang ,&nbsp;Zhi-Hua Zheng ,&nbsp;Chun Tang ,&nbsp;Ting Zhu ,&nbsp;Yong-Ping Lu","doi":"10.1016/j.ygeno.2025.111151","DOIUrl":"10.1016/j.ygeno.2025.111151","url":null,"abstract":"<div><h3>Background</h3><div>Obesity-related glomerulopathy (ORG) is a kidney disorder associated with obesity, where dysbiosis of the gut microbiota and disturbances in lipid metabolism play crucial roles in its development. However, the exact mechanisms by which imbalances in gut microbiota influence lipid metabolism and contribute to the pathogenesis of ORG are still not fully understood.</div></div><div><h3>Methods</h3><div>A high-fat diet (HFD)-induced ORG model was established using 6-week-old male C57BL/6 J mice to investigate the role of gut microbiota and gut-derived metabolites in ORG progression. 16S rRNA sequencing was employed to profile the gut microbiota, while liquid chromatography-tandem mass spectrometry (LC-MS/MS) was applied for metabolite analysis in fecal, serum, and kidney samples.</div></div><div><h3>Results</h3><div>Compared to age-matched normal diet (ND) mice, ORG mice exhibited significant increases in triglycerides (TG), cholesterol (CHO), and urinary albumin-to-creatinine ratio (UACR), alongside enhanced lipid droplet accumulation in renal tubules and glomerular hypertrophy. Metabolomic analysis revealed altered metabolic profiles in ORG mice, particularly the reprogramming of glycerophospholipid metabolism. Additionally, 16S rRNA sequencing demonstrated reduced gut microbiota diversity in ORG mice relative to the ND group. Further investigation revealed that the shift in renal glycerophospholipid metabolism and elevated blood lipid levels in ORG mice were closely linked to gut microbiota dysbiosis, specifically increased abundance of <em>Lachnospiraceae</em> and decreased abundance of <em>Muribaculaceae</em>.</div></div><div><h3>Conclusion</h3><div>The dysbiosis of gut microbiota induced by a HFD leads to glycerophospholipid metabolic reprogramming, promoting lipid droplet deposition in the kidneys and contributing to ORG progression. Our study highlights the contribution of gut microbial metabolism to the development of ORG, offering new perspectives for potential therapeutic strategies targeting the gut in ORG treatment.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111151"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145451456","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}

{"title":"Organelle genomes of progeny of Tripidium arundinaceum × Saccharum spontaneum and sugarcane cultivar revealed their inheritance and characterization after hybridization","authors":"Sicheng Li ,&nbsp;Shan Zhou ,&nbsp;Fengzhen Wu ,&nbsp;Yuxin Huang ,&nbsp;Yang Zhao ,&nbsp;Baoqing Zhang ,&nbsp;Gemin Zhang ,&nbsp;Weixing Duan ,&nbsp;Xiping Yang","doi":"10.1016/j.ygeno.2025.111107","DOIUrl":"10.1016/j.ygeno.2025.111107","url":null,"abstract":"<div><div>Sugarcane (<em>Saccharum</em> spp.) breeding often involves hybridization with distantly related wild species (such as <em>Tripidium arundinaceum</em>) to improve stress resistance, but mitochondrial and chloroplast inheritance across multiple backcross generations remains poorly understood. In this study, we employed PacBio and Illumina sequencing to assemble and compare the mitochondrial genomes (mitogenomes) and chloroplast genome of four genotypes: an distant hybrid F₁ GXAS 07–6-1 (<em>Tripidium arundinaceum</em> × <em>Saccharum spontaneum</em>), a subsequent hybrid F₁ GXASF₁ 08–2-28, a first-generation backcross GXASBC₁ 12-A6–3, and a second-generation backcross GXASBC₂ 15–114. Maternal inheritance preserves key co-linear gene clusters, whereas MTPT content varies, indicating post-hybridization structural adjustments. Our study confirms strict maternal inheritance of mitochondrial and chloroplast genomes across hybrid and backcross generations and validates mitochondrial transmission using organelle-specific markers, providing insights into organellar inheritance and references for sugarcane breeding.</div></div>","PeriodicalId":12521,"journal":{"name":"Genomics","volume":"117 6","pages":"Article 111107"},"PeriodicalIF":3.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145091662","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}