scholarly journals Regulatory Roles of Small Non-coding RNAs in Sugar Beet Resistance Against Beet curly top virus

2022 ◽  
Vol 12 ◽  
Author(s):  
Rajtilak Majumdar ◽  
Paul J. Galewski ◽  
Imad Eujayl ◽  
Rakesh Minocha ◽  
Eric Vincill ◽  
...  

Beet curly top virus (BCTV) mediated yield loss in sugar beets is a major problem worldwide. The circular single-stranded DNA virus is transmitted by the beet leafhopper. Genetic sources of BCTV resistance in sugar beet are limited and commercial cultivars rely on chemical treatments versus durable genetic resistance. Phenotypic selection and double haploid production have resulted in sugar beet germplasm (KDH13; 13 and KDH4-9; 4) that are highly resistant to BCTV. The molecular mechanism of resistance to the virus is unknown, especially the role of small non-coding RNAs (sncRNAs) during early plant–viral interaction. Using the resistant lines along with a susceptible line (KDH19-17; 19), we demonstrate the role of sugar beet microRNAs (miRNAs) in BCTV resistance during early infection stages when symptoms are not yet visible. The differentially expressed miRNAs altered the expression of their corresponding target genes such as pyruvate dehydrogenase (EL10Ac1g02046), carboxylesterase (EL10Ac1g01087), serine/threonine protein phosphatase (EL10Ac1g01374), and leucine-rich repeats (LRR) receptor-like (EL10Ac7g17778), that were highly expressed in the resistant lines versus susceptible lines. Pathway enrichment analysis of the miRNA target genes showed an enrichment of genes involved in glycolysis/gluconeogenesis, galactose metabolism, starch, and sucrose metabolism to name a few. Carbohydrate analysis revealed altered glucose, galactose, fructose, and sucrose concentrations in the infected leaves of resistant versus susceptible lines. We also demonstrate differential regulation of BCTV derived sncRNAs in the resistant versus susceptible lines that target sugar beet genes such as LRR (EL10Ac1g01206), 7-deoxyloganetic acid glucosyltransferase (EL10Ac5g12605), and transmembrane emp24 domain containing (EL10Ac6g14074) and altered their expression. In response to viral infection, we found that plant derived miRNAs targeted BCTV capsid protein/replication related genes and showed differences in expression among resistant and susceptible lines. The data presented here demonstrate the contribution of miRNA mediated regulation of metabolic pathways and cross-kingdom RNA interference (RNAi) in sugar beet BCTV resistance.

2013 ◽  
Vol 709 ◽  
pp. 858-861
Author(s):  
De Ming Han ◽  
Zi Jun Shen ◽  
Li Hui Zhao

MicroRNAs are small non-coding RNAs that act at the post-transcriptional level, regulating protein expression by repressing translation or destabilizing mRNA target. We searched information about miR-155 in miRBase. Target genes of miR-155 are predicted by four miRNA target gene prediction softwares. The result shows that miR-155 was involved in proliferation, differentiation and apoptosis. These results can contribute to further study on the role of microRNA in diagnosis and treatment of cancer.


2020 ◽  
Author(s):  
Fuhui Han ◽  
Jing Li ◽  
Ranran Zhao ◽  
Lirong Liu ◽  
Lanlan Li ◽  
...  

Abstract Background: Intramuscular fat (IMF) content has become one of the most important indicators for measuring meat quality, and levels of IMF are affected by various genes. Long non-coding RNAs (lncRNAs) are widely expressed non-coding RNAs that play an important regulatory role in a variety of biological processes; however, research on the lncRNAs involved in sheep IMF deposition is still in its infancy. Aohan fine-wool sheep (AFWS), one of China's most important meat-hair, dual-purpose sheep breed, provides a great model for studying the role of lncRNAs in the regulation of IMF deposition. We identified lncRNAs by RNA sequencing in Longissimus thoracis et lumborum (LTL) samples of sheep at two ages: 2 months (Mth-2) and 12 months (Mth-12). Results: We identified a total of 26,247 genes and 6,935 novel lncRNAs in LTL samples of sheep. Among these, 199 mRNAs and 61 lncRNAs were differentially expressed. We then compared the structural characteristics of lncRNAs and mRNAs. We obtained target genes of differentially expressed lncRNAs (DELs) and performed enrichment analyses using Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG). We found that target mRNAs were enriched in metabolic processes and developmental pathways. One pathway was significantly enriched, namely tight junction. Based on the analysis of critical target genes, we obtained seven candidate lncRNAs that potentially regulated lipid deposition and constructed a lncRNA-mRNA co-expression network that included MSTRG.4051.3-FZD4, MSTRG.16157.3-ULK1, MSTRG.21053.3-PAQR3, MSTRG.19941.2-TPI1, MSTRG.12864.1-FHL1, MSTRG.2469.2-EXOC6 and MSTRG.21381.1-NCOA1. We speculated that these candidate lncRNAs might play a role by regulating the expression of target genes. We randomly selected five mRNAs and five lncRNAs to verify the accuracy of the sequencing data by qRT-PCR.Conclusions: Our study identified the differentially expressed mRNAs and lncRNAs during intramuscular lipid deposition in Aohan fine-wool sheep. The work may widen the knowledge about the annotation of the sheep genome and provide a working basis for investigating intramuscular fat deposition in sheep.


2020 ◽  
Author(s):  
Xuping Zhu ◽  
Yanyu Li ◽  
Xue Zhu ◽  
Yanmin Jiang ◽  
Xiaowei Zhu ◽  
...  

Abstract Background Long non-coding RNAs (lncRNAs) are important mediators in the pathogenesis of diabetic gastrointestinal autonomic neuropathy, which has just been reported to have a relation to enteric glial cells (EGCs). However, the role of lncRNAs in the pathogenesis of diabetic gastrointestinal autonomic neuropathy, especially EGCs-related gastrointestinal dysfunction, has never been reported. Methods RNA sequencing technology (RNA-Seq) was used to screen the differential lncRNAs and mRNAs in EGCs under hyperglycemia (300 mmol L− 1 high glucose). Results Totally 4678 differentially expressed lncRNAs (DE lncRNAs) and 6244 differentially expressed mRNAs (DE mRNAs) were obtained. GO enrichment analysis and KEGG pathway analysis showed significant differences. 2910 and 1549 co-expressed mRNAs were respectively expressed in up-regulated and down-regulated DE lncRNA target genes. Several up- or down-regulated lncRNAs were at the key junction points of the regulatory network. Protein-protein interaction networks showed highly connected clusters were TP53, AKT1, Casp9, Casp8, Casp3, TNF, etc, which are known closely related to apoptosis. FLRT3, Fras1, and other related target genes, which revealed the potential function of lncRNAs, may be important targets for differential lncRNAs to regulate the apoptosis of glial cells induced by hyperglycemia. Conclusion In this study, the involvement of lncRNAs in EGCs under hyperglycemia was analyzed using transcriptome analysis.


2020 ◽  
Vol 9 (2) ◽  
pp. 86-91
Author(s):  
Mahta Moraghebi ◽  
Milad Rafat ◽  
Pegah Mousavi ◽  
Kianoosh Malekzadeh

MicroRNAs (miRNAs) constitute a large family of small non-coding RNAs which regulate gene expression at the surface following transcription. They are widely involved in many physiological and pathological processes including polycystic ovarian syndrome (PCOS). PCOS is an endocrine disorder in women. Currently, there is no comprehensive information about the role of miRNAs in PCOS. Thus, this paper has attempted to collate studies on miRNAs in order to determine important changes in their miRNA expression profile in the total blood, serum, plasma, follicular fluid, and granulosa cells in PCOS patients alongside the genes which are targeted for regulation by these miRNAs. This study presents a new approach for using miRNAs and their target genes for diagnosing and treating PCOS.


2020 ◽  
Author(s):  
Fuhui Han ◽  
Jing Li ◽  
Nan Liu ◽  
Ranran Zhao ◽  
Lirong Liu ◽  
...  

Abstract Background: Intramuscular fat (IMF) content has become one of the most important indicators for measuring meat quality, and levels of IMF are affected by various genes. Long non-coding RNAs (lncRNAs) are widely expressed non-coding RNAs that play an important regulatory role in a variety of biological processes; however, research on the lncRNAs involved in sheep IMF deposition is still in its infancy. Aohan fine-wool sheep (AFWS), one of China's most important meat-hair, dual-purpose sheep breed, provides a great model for studying the role of lncRNAs in the regulation of IMF deposition. We identified lncRNAs by RNA sequencing in Longissimus thoracis et lumborum (LTL) samples of sheep at two ages: 2 months (Mth-2) and 12 months (Mth-12). Results: We identified a total of 26,247 genes and 6,935 novel lncRNAs in LTL samples of sheep. Among these, 199 mRNAs and 61 lncRNAs were differentially expressed. We then compared the structural characteristics of lncRNAs and mRNAs. We obtained target genes of differentially expressed lncRNAs (DELs) and performed enrichment analyses using Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG). We found that target mRNAs were enriched in metabolic processes and developmental pathways. One pathway was significantly enriched, namely tight junction. Based on the analysis of critical target genes, we obtained seven candidate lncRNAs that potentially regulated lipid deposition and constructed a lncRNA-mRNA co-expression network that included MSTRG.4051.3-FZD4, MSTRG.16157.3-ULK1, MSTRG.21053.3-PAQR3, MSTRG.19941.2-TPI1, MSTRG.12864.1-FHL1, MSTRG.2469.2-EXOC6 and MSTRG.21381.1-NCOA1. We speculated that these candidate lncRNAs might play a role by regulating the expression of target genes. We randomly selected five mRNAs and five lncRNAs to verify the accuracy of the sequencing data by qRT-PCR.Conclusions: Our study identified the differentially expressed mRNAs and lncRNAs during intramuscular lipid deposition in Aohan fine-wool sheep. The work may widen the knowledge about the annotation of the sheep genome and provide a working basis for investigating intramuscular fat deposition in sheep.


Currently, implementation of the breeding programs, including the commonly recognized areas and classic breeding methods, cannot sufficiently ensure a quick and significant increase in the productivity of sugar beet hybrids, since its gene pool is almost exhausted. Based on the achievements in the field of genetics, new approaches to and opportunities in creating highly productive agrocoenoses of sugar beet have become popular. As a result of many years of work, results have been obtained about the nature of inheriting the resistance to glyphosate in individual heterozygous apo- and syncarpous forms in case of inbreeding and pair mating with the MC tester. The expression of target genes in the generations was monitored by the survival rate of sugar beet plants after the treatment with glyphosate. During the research, individuals with a high level of gene expression were selected. Upon self-pollination of initial heterozygous original forms, deviations from Mendelian segregation were observed in most cases. The criterion for assessing the stability of expression of glyphosate resistance genes in case of seed breeding was the compliance with the laws of Mendel among the analyzed descendants. In the initial stages of the research, the level of stability gene expression had been 10 – 15 % of the total number of analyzed plants. After four self-pollinations, the stability gene expression significantly increased, and genotypes with the resistance of 91 – 100 % were selected. The first apo- and syncarpous self-pollinating lines of sugar beet with high tolerance in the role of resistance donors have been created. The positive results of preliminary tests of the first glyphosate-tolerant hybrids need confirmation. Seeds and roots of resistant forms have been obtained for further research.


BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Fuhui Han ◽  
Jing Li ◽  
Ranran Zhao ◽  
Lirong Liu ◽  
Lanlan Li ◽  
...  

Abstract Background Intramuscular fat (IMF) content has become one of the most important indicators for measuring meat quality, and levels of IMF are affected by various genes. Long non-coding RNAs (lncRNAs) are widely expressed non-coding RNAs that play an important regulatory role in a variety of biological processes; however, research on the lncRNAs involved in sheep IMF deposition is still in its infancy. Aohan fine-wool sheep (AFWS), one of China’s most important meat-hair, dual-purpose sheep breed, provides a great model for studying the role of lncRNAs in the regulation of IMF deposition. We identified lncRNAs by RNA sequencing in Longissimus thoracis et lumborum (LTL) samples of sheep at two ages: 2 months (Mth-2) and 12 months (Mth-12). Results We identified a total of 26,247 genes and 6935 novel lncRNAs in LTL samples of sheep. Among these, 199 mRNAs and 61 lncRNAs were differentially expressed. We then compared the structural characteristics of lncRNAs and mRNAs. We obtained target genes of differentially expressed lncRNAs (DELs) and performed enrichment analyses using Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG). We found that target mRNAs were enriched in metabolic processes and developmental pathways. One pathway was significantly enriched, namely tight junction. Based on the analysis of critical target genes, we obtained seven candidate lncRNAs that potentially regulated lipid deposition and constructed a lncRNA-mRNA co-expression network that included MSTRG.4051.3-FZD4, MSTRG.16157.3-ULK1, MSTRG.21053.3-PAQR3, MSTRG.19941.2-TPI1, MSTRG.12864.1-FHL1, MSTRG.2469.2-EXOC6 and MSTRG.21381.1-NCOA1. We speculated that these candidate lncRNAs might play a role by regulating the expression of target genes. We randomly selected five mRNAs and five lncRNAs to verify the accuracy of the sequencing data by qRT-PCR. Conclusions Our study identified the differentially expressed mRNAs and lncRNAs during intramuscular lipid deposition in Aohan fine-wool sheep. The work may widen the knowledge about the annotation of the sheep genome and provide a working basis for investigating intramuscular fat deposition in sheep.


PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5787 ◽  
Author(s):  
Jun Shi ◽  
Guangqiang Ye ◽  
Guoliang Zhao ◽  
Xuedong Wang ◽  
Chunhui Ye ◽  
...  

Objective To investigate the interaction of non-coding RNAs (ncRNAs) in hepatocellular carcinoma. Methods We compared the ncRNAs and mRNAs expression profiles of hepatocellular carcinoma and adjacent tissue by microarray and RT-PCR. The relationship between different ncRNAs and mRNA was analyzed using bioinformatics tools. A regulatory model of ncRNAs in hepatocellular carcinoma cells was developed. Results A total of 1,704 differentially expressed lncRNAs, 57 miRNAs, and 2,093 mRNAs were identified by microarray analyses. There is a co-expression relationship between two ncRNAs (miRNA-125b-2-3p and lncRNA P26302). Bioinformatics analysis demonstrated cyclin-dependent kinases 1 and CyclinA2 as potential targets of miR-125b-2-3p and Polo-like kinase 1 as potential target of lncRNAP26302. All three gene are important components in the G2/M phase of cell cycle. Subsequently real-time polymerase chain reaction (PCR) studies confirmed these microarray results. Conclusion MiR-125b-2-3p and lncRNAP26302 may affect the G2/M phase of the cell cycle through the regulation of their respective target genes. This study shows a role of ncRNAs in pathogenesis of hepatocellular carcinoma at molecular level, providing a basis for the future investigation aiming at early diagnosis and novel treatment of hepatocellular carcinoma.


2018 ◽  
Vol 5 (2) ◽  
pp. 8-15
Author(s):  
I. F. Gareev ◽  
O. A. Beylerli

MicroRNAs are a new class of small non-coding RNAs, a length of 18–22 nucleotides that play a decisive role as posttranscriptional regulators of gene expression. Due to the large number of genes, regulated microRNAs, microRNAs are involved in many cellular processes. The study of the impairment of the expression of the target genes of microRNA, often associated with changes in important biological characteristics, provides a significant understanding of the role of microRNAs in oncogenesis. New evidence suggests that aberrant microRNA expression or dysregulation of endogenous microRNAs affects the onset and development of tumors, including adenomas of the pituitary gland. In this review, the significance of some microRNAs in the pathology of the pituitary adenoma will be assessed, as well as data on the study of microRNAs as therapeutic targets and new biomarkers.


2021 ◽  
Author(s):  
Shahrzad Askari ◽  
Fatemeh khani-Habibabadi ◽  
Mehrdad Behmanesh

Astrocyte-secreted factors play multifunctional roles in central nervous system (CNS) in health and disease. Here, we examined the regulatory machinery of long non-coding RNAs (lncRNAs) on gene expression of several factors of great importance in remyelination - CNTF, NT-3, FGF2 and PDGF-C - in human astrocytoma cell line via in silico and experimental studies. To know any expression correlations among these genes as well as their changes in inflammatory conditions, their expression was measured under H2O2 induction. Using available databases, a computational screening was performed to collect lncRNAs having the potentiality of regulating expression of the target genes. MALAT1 and Lnc-DC were selected as high potential expression regulators of four genes of the study among 40 lncRNAs that were evaluated bioinformatically. Downregulation of remyelination-modulating genes of interest under DNAzyme-induced suppression of MALAT1 or Lnc-DC verified the regulatory role of these lncRNAs. More detailed information on expression regulatory machinery of lncRNAs and remyelination-modulating genes in inflammatory conditions could pave the way for understanding the reasons of their inefficiency in demyelinating diseases such as Multiple Sclerosis (MS).


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