BMC Genomics最新文献

{"title":"A chromosome-level genome assembly of a model conifer plant, the Japanese cedar, Cryptomeria japonica D. Don.","authors":"Takeshi Fujino, Katsushi Yamaguchi, Toshiyuki T Yokoyama, Toshiya Hamanaka, Yoritaka Harazono, Hiroaki Kamada, Wataru Kobayashi, Tokuko Ujino-Ihara, Kentaro Uchiyama, Asako Matsumoto, Ayako Izuno, Yoshihiko Tsumura, Atsushi Toyoda, Shuji Shigenobu, Yoshinari Moriguchi, Saneyoshi Ueno, Masahiro Kasahara","doi":"10.1186/s12864-024-10929-4","DOIUrl":"10.1186/s12864-024-10929-4","url":null,"abstract":"<p><strong>Background: </strong>The Japanese cedar (Cryptomeria japonica D. Don) is one of the most important Japanese forest trees, occupying approximately 44% of artificial forests and planted in East Asia, the Azores Archipelago, and certain islands in the Indian Ocean. Although the huge genome of the species (ca. 9 Gbp) with abundant repeat elements may have represented an obstacle for genetic analysis, this species is easily propagated by cutting, flowered by gibberellic acid, transformed by Agrobacterium, and edited by CRISPR/Cas9. These characteristics of C. japonica recommend it as a model conifer species for which reference genome sequences are necessary.</p><p><strong>Results: </strong>Herein, we report the first chromosome-level assembly of C. japonica (2n = 22) using third-generation selfed progeny (estimated homozygosity rate = 0.96). Young leaf tissue was used to extract high molecular weight DNA (> 50 kb) for HiFi PacBio long-read sequencing and to construct an Hi-C/Omni-C library for Illumina short-read sequencing. The 29× and 26× genome coverage of HiFi and Illumina reads, respectively, for de novo assembly yielded 2,651 contigs (9.1 Gbp, N50 contig size 12.0 Mbp). Hi-C analysis mapped 97% of the nucleotides on 11 chromosomes. The assembly was verified through comparison with a consensus linkage map comprising 7,781 markers. BUSCO analysis identified ∼ 91% conserved genes.</p><p><strong>Conclusions: </strong>Annotations of genes and comparisons of repeat elements with other Cupressaceae and Pinaceae species provide a fundamental resource for conifer research.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1039"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539532/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581971","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":"Identifying low-density, ancestry-informative SNP markers through whole genome resequencing in Indian, Chinese, and wild yak.","authors":"Munish Gangwar, Sheikh Firdous Ahmad, Abdul Basit Ali, Amit Kumar, Amod Kumar, Gyanendra Kumar Gaur, Triveni Dutt","doi":"10.1186/s12864-024-10924-9","DOIUrl":"10.1186/s12864-024-10924-9","url":null,"abstract":"<p><p>The current investigation was undertaken to elucidate the population-stratifying and ancestry-informative markers in Indian, Chinese, and wild yak populations using whole genome resequencing (WGS) analysis while employing various selection strategies (Delta, Pairwise Wright's Fixation Index-F_ST, and Informativeness of Assignment) and marker densities (5-25 thousand). The study used WGS data on 105 individuals from three separate yak cohorts i.e., Indian yak (n = 29), Chinese yak (n = 61), and wild yak (n = 15). Variant calling in the GATK program with strict quality control resulted in 1,002,970 high-quality and independent (LD-pruned) SNP markers across the yak autosomes. Analysis was undertaken in toolbox for ranking and evaluation of SNPs (TRES) program wherein three different criteria i.e., Delta, Pairwise Wright's Fixation Index-F_ST, and Informativeness of Assignment were employed to identify population-stratifying and ancestry-informative markers across various datasets. The top-ranked 5,000 (5K), 10,000 (10K), 15,000 (15K), 20,000 (20K), and 25,000 (25K) SNPs were identified from each dataset while their composition and performance was assessed using different criteria. The average genomic breed clustering of Indian, Chinese, and wild yak cohorts with full density dataset (105 individuals with 1,002,970 markers) was 81.74%, 80.02%, and 83.62%, respectively. Informativeness of Assignment criterion with 10K density emerged as the best combination for three yak cohorts with 86.94%, 96.46%, and 98.20% clustering for Indian, Chinese, and wild yak, respectively. There was an average increase of 7.56%, 22.72%, and 30.35% in genomic breed clustering scores of Indian, Chinese, and wild yak cohorts over the estimates of the original dataset. The selected markers showed overlap multiple protein-coding genes within a 10 kb window including ADGRB3, ANK1, CACNG7, CALN1, CHCHD2, CREBBP, GLI3, KHDRBS2, and OSBPL10. This is the first report ever on elucidating low-density SNP marker sets with population-stratifying and ancestry-informative properties in three yak groups using WGS data. The results gain significance for application of genomic selection using cost-effective low-density SNP panels in global yak species.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1043"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539683/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581989","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":"Transcriptome analysis of mammary epithelial cell between Sewa sheep and East FriEsian sheep from different localities.","authors":"Rui Li, Junru Pan, Cheng Pan, Jingjing Li, Zhenzhen Zhang, Khuram Shahzad, Yu Sun, Quzhu Yixi, Wangjie Zhaxi, Haofeng Qing, Tianzeng Song, Wangsheng Zhao","doi":"10.1186/s12864-024-10946-3","DOIUrl":"10.1186/s12864-024-10946-3","url":null,"abstract":"<p><p>Mammary epithelial cells, the only milk-producing cell type in the mammary gland, undergo dynamic proliferation and differentiation during pregnancy, culminating in lactation postpartum. The East FriEsian sheep ranks among the world's most prolific dairy breeds, while the Sewa sheep, a unique dual-purpose breed autochthonous to the Qinghai-Tibet Plateau, exhibits significantly lower milk production. Employing tissue culture methods, we successfully established mammary epithelial cell lines from both breeds. Morphological assessment of mammary epithelial cells and immunofluorescence identification of Cytokeratin 7 and Cytokeratin 8 confirmed the epithelial identity of the isolated cells. Subsequent RNA-seq analysis of these in vitro epithelial cell lines revealed 1813 differentially expressed genes (DEGs). Among these, 1108 were significantly up-regulated and 705 were down-regulated in Sewa epithelial sheep cells compared to East FriEsian epithelial cells. KEGG enrichment analysis identified cellular processes, environmental information processing, human diseases, metabolism, and organismal systems as the primary functional categories associated with DEGs. Gene ontology (GO) terms annotation, categorized into molecular function, biological processes, and cellular component, yielded \"binding and catalytic activity,\" \"molecular function regulator activity,\" and \"cellular process,\" \"biological regulation,\" and \"regulation of biological process\" as the top three terms within each domain, respectively. Clusters of Orthologous Groups of proteins (KOG) classification further revealed that \"signal transduction mechanisms\" accounted for the largest proportion of DEGs among all KOG categories. Finally, based on these analyses, ATF3 and MPP7 were identified as promising candidate genes for regulating lactation.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1038"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539678/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581998","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":"New insights into the evolution analysis of trihelix gene family in eggplant (Solanum melongena L.) and expression analysis under abiotic stress.","authors":"Yanhong Lan, Fangyi Gong, Chun Li, Feng Xia, Yifan Li, Xiaojun Liu, Duchen Liu, Genyun Liang, Chao Fang, Peng Cai","doi":"10.1186/s12864-024-10959-y","DOIUrl":"10.1186/s12864-024-10959-y","url":null,"abstract":"<p><strong>Background: </strong>Trihliex transcription factors (TFs) play crucial roles in plant growth and development, stress response, and plant hormone signaling network transmission. In order to comprehensively investigate the functions of trihliex genes in eggplant development and the abiotic stress response, we conducted an extensive analysis of the trihliex gene family in the eggplant genome.</p><p><strong>Results: </strong>In this study, 30 trihelix gene family members were unevenly distributed on 12 chromosomes. On the basis of their phylogenetic relationships, these genes were conserved in different plant species and could be divided into six subfamilies, with trihelix genes within the same subfamily sharing similar structures. The promoter regions of trihelix genes contained cis-acting elements related to plant growth and development, plant hormones, and abiotic stress responses, suggesting potential applications in the development of more resistant crops. Selective pressure assessments indicated that trihliex genes have undergone purifying selection pressure. Expression analysis on the basis of transcriptomic profiles revealed that SmGT18, SmGT29, SmGT6, and SmGT28 are highly expressed in roots, leaves, flowers, and fruits, respectively. Expression analysis via quantitative real-time PCR (qRT‒PCR) revealed that most trihelix genes respond to low temperature, abscisic acid (ABA), and salicylic acid (SA), with SmGT29 exhibiting significant upregulation under cold stress conditions. The SmGT29 gene was subsequently successfully cloned from eggplant, which was located in the nucleus, robust transcriptional activity, and a protein molecular weight of 74.59 kDa. On the basis of these findings, SmGT29 was postulated to be a pivotal candidate gene that actively responds to biotic stress stimuli, thereby supporting the plant's innate stress resistance mechanisms.</p><p><strong>Conclusion: </strong>In summary, this study was the first report on trihelix genes and their potential roles in eggplant plants. These results provided valuable insights for enhancing stress resistance and quality traits in eggplant breeding, thereby serving as a crucial reference for future improvement efforts.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1040"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539502/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581991","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":"The evolutionary dynamics of genome sizes and repetitive elements in Ensifera (Insecta: Orthoptera).","authors":"Hao Yuan, Xiao-Jing Liu, Xuan-Zeng Liu, Li-Na Zhao, Shao-Li Mao, Yuan Huang","doi":"10.1186/s12864-024-10949-0","DOIUrl":"10.1186/s12864-024-10949-0","url":null,"abstract":"<p><strong>Background: </strong>In evolutionary biology, identifying and quantifying inter-lineage genome size variation and elucidating the underlying causes of that variation have long been goals. Repetitive elements (REs) have been proposed and confirmed as being among the most important contributors to genome size variation. However, the evolutionary implications of genome size variation and RE dynamics are not well understood.</p><p><strong>Results: </strong>A total of 35 Ensifera insects were collected from different areas in China, including nine species of crickets and 26 species of katydids. The genome sizes of seven species were then determined using flow cytometry. The RepeatExplorer2 pipeline was employed to retrieve the repeated sequences for each species, based on low-coverage (0.1 X) high-throughput Illumina unassembled short reads. The genome sizes of the 35 Ensifera insects exhibited a considerable degree of variation, ranging from 1.00 to 18.34 pg. This variation was more than 18-fold. Similarly, the RE abundances exhibited considerable variation, ranging from 13.66 to 61.16%. In addition, the Tettigonioidea had larger genomes and contained significantly more REs than did the Grylloidea genomes. Analysis of the correlation between RE abundance and the genome size of 35 Ensifera insects revealed that the abundance of REs, transposable elements (TEs), long terminal repeats (LTRs), and long interspersed nuclear elements (LINEs) are significantly correlated with genome size. Notably, there is an inflection point in this correlation, where species with increasingly large genomes (e.g., > 5-10 pg) have repeats that contribute less to genome expansion than expected. Furthermore, this study revealed contrasting evolutionary directions between the Tettigonioidea and Grylloidea clades in terms of the expansion of REs. Tettigonioidea species exhibit a gradual increase in ancestral genome size and RE abundance as they diverge, while Grylloidea species experience sustained genome contraction.</p><p><strong>Conclusions: </strong>This study reveals extensive variation in genome size and RE abundance in Ensifera insects, with distinct evolutionary patterns across two major groups, Tettigonioidea and Grylloidea. This provides valuable insights into the variation in genome size and RE abundance in Ensifera insects, offering a comprehensive understanding of their evolutionary history.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1041"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539627/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581992","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":"Microprotein-encoding RNA regulation in cells treated with pro-inflammatory and pro-fibrotic stimuli.","authors":"Victor J Pai, Calvin J Lau, Almudena Garcia-Ruiz, Cynthia Donaldson, Joan M Vaughan, Brendan Miller, Eduardo V De Souza, Antonio M Pinto, Jolene Diedrich, Narender R Gavva, Shan Yu, Christopher DeBoever, Shane R Horman, Alan Saghatelian","doi":"10.1186/s12864-024-10948-1","DOIUrl":"10.1186/s12864-024-10948-1","url":null,"abstract":"<p><strong>Background: </strong>Recent analysis of the human proteome via proteogenomics and ribosome profiling of the transcriptome revealed the existence of thousands of previously unannotated microprotein-coding small open reading frames (smORFs). Most functional microproteins were chosen for characterization because of their evolutionary conservation. However, one example of a non-conserved immunomodulatory microprotein in mice suggests that strict sequence conservation misses some intriguing microproteins.</p><p><strong>Results: </strong>We examine the ability of gene regulation to identify human microproteins with potential roles in inflammation or fibrosis of the intestine. To do this, we collected ribosome profiling data of intestinal cell lines and peripheral blood mononuclear cells and used gene expression of microprotein-encoding transcripts to identify strongly regulated microproteins, including several examples of microproteins that are only conserved with primates.</p><p><strong>Conclusion: </strong>This approach reveals a number of new microproteins worthy of additional functional characterization and provides a dataset that can be queried in different ways to find additional gut microproteins of interest.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1034"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11536906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575462","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":"Correction: Transcriptional reprogramming in the entomopathogenic fungus Metarhizium brunneum and its aphid host Myzus persicae during the switch between saprophytic and parasitic lifestyles.","authors":"Victoria Reingold, Adi Faigenboim, Sabina Matveev, Sabrina Haviv, Eduard Belausov, Andreas Vilcinskas, Dana Ment","doi":"10.1186/s12864-024-10944-5","DOIUrl":"10.1186/s12864-024-10944-5","url":null,"abstract":"","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1037"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11536918/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581972","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":"Genome-wide selection of potential target candidates for RNAi against Nilaparvata lugens.","authors":"Zhang Jinshi, Li Mei, Lian Jinjin, Zhang Weilin","doi":"10.1186/s12864-024-10940-9","DOIUrl":"10.1186/s12864-024-10940-9","url":null,"abstract":"<p><strong>Background: </strong>Nilaparvata lugens is one of the most destructive pests of rice. RNAi-based N. lugens control offers one alternative strategy to traditional chemical insecticides. However, selection of potential target for RNAi against N. lugens remains a major challenge. Only two target genes for nuclear transgenic N. lugens-resistant plants have been screened. Importantly, only one or few potential target genes against N. lugens were screened every time by knowledge of essential genes from model organisms in previous study.</p><p><strong>Results: </strong>Here, in silico genome-wide selection of potential target genes against N. lugens through homology comparison was performed. Through genome synteny comparisons, about 3.5% of Drosophila melanogaster genome was found to have conserved genomic synteny with N. lugens genome. By using N. lugens proteins to search D. melanogaster homologs defining lethal or sterile phenotype, 358 N. lugens genes were first screened as putative target genes. Transgenic rice lines expressing dsRNA of randomly selected gene (NlRan or NlSRP54) from 358 putative target genes enhanced resistance to N. lugens. After expression check and safety check, 115 N. lugens genes were screened as potential target candidates.</p><p><strong>Conclusion: </strong>The combined efforts in this study firstly provide one in silico genome-wide homology-based screening approach for RNAi-based target genes against N. lugens, which not only offer one new opportunity to batch select potential target candidates in pests of interest, but also will facilitate the selection of RNAi target in many pest species by providing more than one hundred potential target candidates.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1036"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11536790/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581977","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":"Comparative genomics of Plasmodium yoelii nigeriensis N67 and N67C: genome-wide polymorphisms, differential gene expression, and drug resistance.","authors":"Jian Wu, Cihan Oguz, Awet Alem Teklemichael, Fangzheng Xu, Rachel V Stadler, Amuza Byaruhanga Lucky, Shengfa Liu, Osamu Kaneko, Justin Lack, Xin-Zhuan Su","doi":"10.1186/s12864-024-10961-4","DOIUrl":"10.1186/s12864-024-10961-4","url":null,"abstract":"<p><strong>Background: </strong>The study of rodent malaria parasites has significantly advanced our understanding of malaria parasite biology and host responses to parasite infections. There are four well-characterized rodent malaria parasite species (Plasmodium yoelii, P. chabaudi, P. berghei, and P. vinckei). Each species also has multiple strains that cause different disease phenotypes. P. yoelii nigeriensis N67C and N67, two isogenic parasites, are particularly intriguing as they differ in virulence and incite different immune responses in mice. The genome of the N67 parasite has been assembled recently, but not that of N67C. This study used PacBio HiFi sequencing data to assemble the N67C genome, compared the two genomes, and performed RNA sequencing to identify polymorphisms and differentially expressed genes (DEGs).</p><p><strong>Results: </strong>The assembled N67C parasite genome consisted of 16 scaffolds and three contigs of approximately 22.5 Mb with 100% and 96.6% completeness based on well-characterized single-copy orthologs specific to the Apicomplexa phylum and the Plasmodium genus, respectively. A comparison between the annotated N67C and N67 genomes revealed 133 single nucleotide polymorphisms (SNPs) and 75 indels. Among the polymorphic sites, an S (N67) to N (N67C) amino acid substitution at position 114 (S114N) in the dihydrofolate reductase-thymidylate synthase (DHFR-TS) confers resistance to pyrimethamine in mice. Additionally, 60 differentially expressed single-copy genes (DEGs) were detected after comparing mRNA levels between the two parasites. Starting with the predicted and annotated 5,681 N67C and 5,749 N67 genes, we identified 4,641 orthogroups that included at least one gene from the four P. yoelii parasites (N67, N67C, 17X, and YM), whereas 758 orthogroups showed subspecies or strain-specific patterns.</p><p><strong>Conclusion: </strong>The identification of polymorphic sites between the N67 and N67C genomes, along with the detection of the DEGs, may provide crucial insights into the variations in parasite drug responses and disease severity between these two isogenic parasites. The functional characterization of these genetic differences and candidate genes will deepen our understanding of disease mechanisms and pave the way for developing more effective control measures against malaria.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1035"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11536827/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575449","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":"Integrative multi-omics analysis of chilling stress in pumpkin (Cucurbita moschata).","authors":"Fengmei Li, Bobo Liu, Hui Zhang, Jiuming Zhang, Jinling Cai, Jian Cui","doi":"10.1186/s12864-024-10939-2","DOIUrl":"10.1186/s12864-024-10939-2","url":null,"abstract":"<p><strong>Background: </strong>Pumpkin (Cucurbita moschata) is an important vegetable crop that often suffers from low-temperature stress during growth. However, the molecular mechanism involved in its response to chilling stress remains unknown. In this study, we comprehensively investigated the effect of chilling stress in pumpkin seedlings by conducting physiological, transcriptomic, and metabolomic analyses.</p><p><strong>Results: </strong>Under chilling stress, there was an overall increase in relative electrical conductivity, along with malondialdehyde, soluble sugar, and soluble protein contents, but decreased superoxide dismutase and peroxidase activities and chlorophyll contents in seedling leaves compared with controls. Overall, 5,780 differentially expressed genes (DEGs) and 178 differentially expressed metabolites (DEMs) were identified under chilling stress. Most DEGs were involved in plant hormone signal transduction and the phenylpropanoid biosynthesis pathway, and ERF, bHLH, WRKY, MYB, and HSF transcription factors were induced. Metabolomic analysis revealed that the contents of salicylic acid (SA), phenylalanine, and tyrosine increased in response to chilling stress. The findings indicated that the SA signaling and phenylpropanoid biosynthesis pathways are key to regulating the responses to chilling stress in pumpkins.</p><p><strong>Conclusion: </strong>Overall, our study provides valuable insights into the comprehensive response of C. moschata to chilling stress, enriching the theoretical basis of this mechanism and facilitating the development of molecular breeding strategies for pumpkin tolerance to chilling stress.</p>","PeriodicalId":9030,"journal":{"name":"BMC Genomics","volume":"25 1","pages":"1042"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539673/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581990","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}