Qrt-pcr

qRT - PCR
  • 文章类型: Journal Article
    前列腺癌是最常见的主要健康问题之一。几个风险因素可能参与其发展。因此,能够早期诊断的生物标志物对于促进前列腺癌的早期检测和治疗是必要的。人内源性逆转录病毒(HERV)在各种疾病中异常表达。我们的研究旨在评估HERVK-10gag表达在前列腺癌进展中的具体作用。为此,我们收集了一组50份前列腺肿瘤组织样本和50份健康组织样本。从前列腺样本中提取RNA后,我们使用定量实时PCR(qRT-PCR)分析了HERV-Kgag的表达。所得到的数据显示,与没有前列腺癌的男性相比,患有前列腺癌的男性的前列腺恶性区域中的HERV-Kgag表达显著相关(p<0.05)。在50个肿瘤样品中的10个(20%)中检测到HERV-Kgag蛋白的存在,虽然没有健康样本提供这种蛋白质。这些结果表明,HERV-KgagRNA和蛋白质表达的增加可以作为前列腺癌患者队列中前列腺恶性肿瘤的敏感和特异性生物标志物。进一步支持其作为有希望的临床标志物的潜力。
    Prostate cancer is one of the most common major health problems. Several risk factors are potentially involved in its development. Therefore, a biomarker capable of early diagnosis is necessary to facilitate the early detection and treatment of prostate cancer. Human endogenous retroviruses (HERVs) are abnormally expressed in various diseases. Our study aims to evaluate the specific role of HERV K-10 gag expressions in the progression of prostate cancer. For this, we collected a set of 50 prostate tumor tissue samples as well as 50 healthy tissue samples. After extracting RNA from the prostate samples, we analyzed the expression of HERV-K gag using quantitative real-time PCR (qRT-PCR). The resulting data revealed a significant correlation of HERV-K gag expression in malignant regions of the prostate in men with prostate cancer than in men without prostate cancer (p < 0.05). The presence of the HERV-K gag protein was detected in 10 of 50 tumor samples (20%), while no healthy samples presented this protein. These results suggest that increased HERV-K gag RNA and protein expression could serve as a sensitive and specific biomarker of prostate malignancy in this cohort of prostate carcinoma patients, further supporting its potential as a promising clinical marker.
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  • 文章类型: Journal Article
    马刺猴是一种高度多食的害虫,对各种作物构成重大威胁。,特别是在世界上的热带和亚热带地区。虽然已经对这种害虫进行了广泛的生理和生物学研究,遗传信息的缺乏阻碍了我们对其生长的分子机制的理解,发展,和外源性生物代谢。细胞色素P450基因,普遍存在于生物体中的CYP基因超家族成员与生长有关,发展,以及内源性和外源性物质的代谢,有助于昆虫在不同环境中的适应性。为了阐明CYP450基因家族在黑质分枝杆菌中的具体作用,该基因在很大程度上仍未被探索,构建了粉红色mealybug的从头转录组组装。通过跨不同数据库的预测蛋白质序列的同源性搜索,总共120种蛋白质被注释为CYP450基因。系统发育研究导致将120个CYP450基因分为四个CYP氏族。总共对22个CYP450家族和30个亚家族进行了分类,CYP6形成显性家族。该研究还揭示了与昆虫激素生物合成途径相关的五个基因(万圣节基因)。Further,使用qRT-PCR跨爬虫研究了十个选定的CYP450基因的表达,若虫,和成人阶段,并确定了在昆虫特定阶段表达的基因。因此,这项研究的发现揭示了CYP450基因家族在生长中的表达动态和可能的功能,发展,以及可以进一步进行功能验证的陆生M.hirsutus的适应性策略。
    Maconellicoccus hirsutus is a highly polyphagous insect pest, posing a substantial threat to various crop sp., especially in the tropical and sub-tropical regions of the world. While extensive physiological and biological studies have been conducted on this pest, the lack of genetic information has hindered our understanding of the molecular mechanisms underlying its growth, development, and xenobiotic metabolism. The Cytochrome P450 gene, a member of the CYP gene superfamily ubiquitous in living organisms is associated with growth, development, and the metabolism of both endogenous and exogenous substances, contributing to the insect\'s adaptability in diverse environments. To elucidate the specific role of the CYP450 gene family in M. hirsutus which has remained largely unexplored, a de novo transcriptome assembly of the pink mealybug was constructed. A total of 120 proteins were annotated as CYP450 genes through homology search of the predicted protein sequences across different databases. Phylogenetic studies resulted in categorizing 120 CYP450 genes into four CYP clans. A total of 22 CYP450 families and 30 subfamilies were categorized, with CYP6 forming the dominant family. The study also revealed five genes (Halloween genes) associated with the insect hormone biosynthesis pathway. Further, the expression of ten selected CYP450 genes was studied using qRT-PCR across crawler, nymph, and adult stages, and identified genes that were expressed at specific stages of the insects. Thus, the findings of this study reveal the expression dynamics and possible function of the CYP450 gene family in the growth, development, and adaptive strategies of M. hirsutus which can be further functionally validated.
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  • 文章类型: Journal Article
    已知胁迫相关蛋白(SAP)在植物对非生物胁迫的反应中起重要作用。本研究使用向日葵基因组数据系统地鉴定了向日葵SAP基因家族的成员。使用生物信息学方法分析向日葵SAP基因家族的基因,在盐和干旱胁迫下通过荧光定量(qRT-PCR)评估基因表达。还对数字进行了综合分析,结构,共线性,以及七个菊科植物和其他八个植物SAP基因家族的系统发育。向日葵基因组被发现有27个SAP基因,分布在14条染色体上。进化分析表明,SAP家族基因可以分为三个亚组。值得注意的是,Annus品种显示第3组的SAP基因扩增。在菊科物种中,C.morifolium表现出最高数量的共线性基因对和系统发育树上最近的距离,表明进化过程中的相对保守性。对基因结构的分析表明,第1组表现出最复杂的基因结构,而第2组和第3组中的大多数HaSAP基因缺乏内含子。启动子分析显示存在与ABA相关的顺式作用元件,表明他们参与应激反应。表达分析表明10个基因(HaSAP1,HaSAP3,HaSAP8,HaSAP10,HaSAP15,HaSAP16,HaSAP21,HaSAP22,HaSAP23和HaSAP26)可能参与向日葵耐盐性。然后使用qRT-PCR检查盐和干旱胁迫下这10个基因的表达,并分析了这10个基因的组织特异性表达模式。HaSAP1,HaSAP21和HaSAP23在盐和干旱胁迫下表现出一致的表达模式,表明这些基因在向日葵的耐盐性和抗旱性中起作用。这项研究的发现强调了SAP基因家族对向日葵耐盐性和抗旱性的重要贡献。
    Stress-associated proteins (SAPs) are known to play an important role in plant responses to abiotic stresses. This study systematically identified members of the sunflower SAP gene family using sunflower genome data. The genes of the sunflower SAP gene family were analyzed using bioinformatic methods, and gene expression was assessed through fluorescence quantification (qRT-PCR) under salt and drought stress. A comprehensive analysis was also performed on the number, structure, collinearity, and phylogeny of seven Compositae species and eight other plant SAP gene families. The sunflower genome was found to have 27 SAP genes, distributed across 14 chromosomes. The evolutionary analysis revealed that the SAP family genes could be divided into three subgroups. Notably, the annuus variety exhibited amplification of the SAP gene for Group 3. Among the Compositae species, C. morifolium demonstrated the highest number of collinearity gene pairs and the closest distance on the phylogenetic tree, suggesting relative conservation in the evolutionary process. An analysis of gene structure revealed that Group 1 exhibited the most complex gene structure, while the majority of HaSAP genes in Group 2 and Group 3 lacked introns. The promoter analysis revealed the presence of cis-acting elements related to ABA, indicating their involvement in stress responses. The expression analysis indicated the potential involvement of 10 genes (HaSAP1, HaSAP3, HaSAP8, HaSAP10, HaSAP15, HaSAP16, HaSAP21, HaSAP22, HaSAP23, and HaSAP26) in sunflower salt tolerance. The expression of these 10 genes were then examined under salt and drought stress using qRT-PCR, and the tissue-specific expression patterns of these 10 genes were also analyzed. HaSAP1, HaSAP21, and HaSAP23 exhibited consistent expression patterns under both salt and drought stress, indicating these genes play a role in both salt tolerance and drought resistance in sunflower. The findings of this study highlight the significant contribution of the SAP gene family to salt tolerance and drought resistance in sunflower.
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  • 文章类型: Journal Article
    宫颈癌筛查主要在发展中国家是一项挑战。在发达国家,由于组织良好的筛查计划,发病率和死亡率都在下降.正在开发的潜在生物标志物之一是微小染色体维持蛋白(MCM),显示特异性和敏感性。MCM2-7参与DNA复制起始和延伸,MCM亚基在恶性组织中高表达。与其他MCM不同,MCM10,它不是核心解旋酶复合物的一部分,是起源激活的关键决定因素,其水平在癌细胞中受到限制。在这项研究中,我们对宫颈癌中所有DNA复制相关MCM蛋白的表达谱进行了生物信息学分析.与其他MCMs相比,MCM10显示出相对较高的表达谱。与正常相比,肿瘤组织中MCMs的mRNA表达水平显着增加,和MCM10显示3.4倍变化。为了了解MCM10是否与宫颈癌的侵袭性有关,我们研究了MCM10在三种宫颈癌细胞系和一种正常宫颈细胞系中的mRNA表达模式。与对照相比,在更具侵袭性的癌细胞系HeLa的情况下,MCM10表达显著更高。因此,MCM10,可以作为癌症进展的重要生物标志物,因此有助于早期检测以控制癌细胞的扩散。我们的结果表明,MCM10在宫颈癌细胞系中的表达水平与癌症侵袭性有关,证明其临床意义。
    Cervical cancer screening is a challenge mainly in developing countries. In developed countries, both incidence and mortality rates have been decreasing due to well organized screening programs. One of the potential biomarkers being exploited are the minichromosome maintenance proteins (MCMs), which show both specificity and sensitivity. MCM2-7 are involved in DNA replication initiation and elongation, and the MCM subunits are highly expressed in malignant tissues. Unlike other MCMs, MCM10, which is not part of the core helicase complex, is a critical determinant of origin activation and its levels are limiting in cancer cells. In this study, we performed bioinformatic analysis on the expression profile of all DNA replication associated MCM proteins in cervical cancer. MCM10 showed a relatively higher expression profile compared to the other MCMs. The mRNA expression levels of the MCMs were significantly increased in tumour tissues compared to normal, and MCM10 showed a fold change of 3.4. In order to understand if MCM10 is associated with the aggressiveness of cervical cancer, we looked into the mRNA expression pattern of MCM10 in three cervical cancer cell lines and one normal cervical cell line. MCM10 expression was significantly higher in the case of the more aggressive cancer cell line HeLa compared to controls. MCM10, therefore, can serve as a prominent biomarker for cancer progression and thus aid in early detection to control the spread of cancer cells. Our results show that MCM10 expression levels in cervical cancer cell lines are associated with cancer aggressiveness, demonstrating its clinical significance.
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  • 文章类型: Journal Article
    背景:热激转录因子(Hsf)是植物抗逆的关键调节因子,在植物应激反应中起关键作用,增长,和发展调控。
    结果:在这项研究中,我们利用生物信息学工具筛选了25个VbHsf成员,它们被命名为VbHsf1-VbHsf25。我们使用生物信息学方法分析序列结构,物理化学性质,保守的图案,系统发育进化,染色体定位,启动子顺式作用元件,共线性,低温胁迫下Hsf热激转录因子家族成员的基因表达。结果表明,大多数Hsf基因包含基序1,基序2和基序3,表明这三个基序在马鞭草的Hsf蛋白序列中高度保守。尽管成员之间的主题删除存在一些差异,域保持高度保守。理论等电点为4.17~9.71,21个成员为不稳定蛋白,其余为稳定蛋白。亚细胞定位预测表明所有成员都位于细胞核中。牛弧菌和拟南芥的Hsf基因家族的系统发育分析表明,牛弧菌的Hsf基因家族可分为三组,其中A组包括17个成员并且C组具有至少两个成员。在Hsf的25名成员中,在7个染色体片段上有1-3个外显子,分布不均。共线性分析表明VbHsf基因家族中存在7对同源基因。Ka/Ks比值小于1,表明VbHsf基因经历了纯化选择压力。此外,发现牛弧菌中的9个基因与拟南芥共线性。启动子分析表明,所有VbHsf基因的启动子都含有与激素和应激相关的各种类型的顺式作用元件。基于RNA-seq数据,进行了6个高表达基因的qRT-PCR分析,发现VbHsf5,VbHsf14,VbHsf17,VbHsf18,VbHsf20和VbHsf21基因在低温处理12h时高表达,24小时后表达下降,其中VbHsf14在低温12小时上调70倍。
    结论:我们的研究可能有助于揭示Hsf在植物发育中的重要作用,并为牛弧菌的进一步分子育种提供见解。
    BACKGROUND: The heat shock transcription factor (Hsf) is a crucial regulator of plant stress resistance, playing a key role in plant stress response, growth, and development regulation.
    RESULTS: In this study, we utilized bioinformatics tools to screen 25 VbHsf members, which were named VbHsf1-VbHsf25. We used bioinformatics methods to analyze the sequence structure, physicochemical properties, conserved motifs, phylogenetic evolution, chromosome localization, promoter cis-acting elements, collinearity, and gene expression of Hsf heat shock transcription factor family members under low-temperature stress. The results revealed that the majority of the Hsf genes contained motif1, motif2, and motif3, signifying that these three motifs were highly conserved in the Hsf protein sequence of Verbena bonariensis. Although there were some variations in motif deletion among the members, the domain remained highly conserved. The theoretical isoelectric point ranged from 4.17 to 9.71, with 21 members being unstable proteins and the remainder being stable proteins. Subcellular localization predictions indicated that all members were located in the nucleus. Phylogenetic analysis of the Hsf gene family in V. bonariensis and Arabidopsis thaliana revealed that the Hsf gene family of V. bonariensis could be categorized into three groups, with group A comprising 17 members and group C having at least two members. Among the 25 Hsf members, there were 1-3 exons located on seven chromosome fragments, which were unevenly distributed. Collinearity analysis demonstrated the presence of seven pairs of homologous genes in the VbHsf gene family. The Ka/Ks ratios were less than one, indicating that the VbHsf gene underwent purification selection pressure. Additionally, nine genes in V. bonariensis were found to have collinearity with A. thaliana. Promoter analysis revealed that the promoters of all VbHsf genes contained various types of cis-acting elements related to hormones and stress. Based on RNA-seq data, qRT-PCR analysis of six highly expressed genes was performed, and it was found that VbHsf5, VbHsf14, VbHsf17, VbHsf18, VbHsf20 and VbHsf21 genes were highly expressed at 12 h of low-temperature treatment, and the expression decreased after 24 h, among which VbHsf14 was up-regulated at 12 h of low-temperature by 70-fold.
    CONCLUSIONS: Our study may help reveal the important roles of Hsf in plant development and show insight for the further molecular breeding of V. bonariensis.
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  • 文章类型: Journal Article
    磷脂酶A2(PLA2)是参与炎症过程的一大类酶,可催化膜磷脂的水解,导致游离脂肪酸和溶血磷脂的产生,开始花生四烯酸级联反应.它们的表达与几种癌症的行为有关。我们的目标是寻找与预后和生存相关的前列腺癌(PCa)组织中PLA2的表达。
    使用qRT-PCR,我们分析了PLA2G1B的表达水平,PLA2G2A,PLA2G2D,PLA2G4A,PLA2G4B,PLA2G4C,PLA2G4D,PLA2G4E,PLA2G4F,108例前列腺癌根治术患者PCa组织中的PLA2G6、PLA2G7、PLA2G16、PNPLA1和PNPLA2,其次是平均时间163个月。
    与正常组织相比,所有PLA2在PCa中过表达。有趣的是,某些PLA2的高表达与有利的预后因素有关:PSA水平较低(PLA2G2A,PLA2G4D),淋巴结转移率较低(PLA2G16和PLA2G1B),和器官局限性疾病(PLA2G4A)。最重要的是,PLAG4B与更长的无病生存期独立相关。
    这是第一个全面探索PLA2在PCa中表达水平的研究,表明某些PLA2的较高表达应用作预后良好和无病生存期更长的生物标志物。
    UNASSIGNED: Phospholipase A2 (PLA2) is a large family of enzymes involved in the inflammatory process that catalyzes the hydrolysis of membrane phospholipids, leading to the production of free fatty acids and lysophospholipids, starting the arachidonic acid cascade. Their expression has been related to the behavior of several cancers. Our objective is to search for PLA2 expression in prostate cancer (PCa) tissue that correlates with prognosis and survival.
    UNASSIGNED: Using qRT-PCR, we analyzed the expression levels of PLA2G1B, PLA2G2A, PLA2G2D, PLA2G4A, PLA2G4B, PLA2G4C, PLA2G4D, PLA2G4E, PLA2G4F, PLA2G6, PLA2G7, PLA2G16, PNPLA1, and PNPLA2 in PCa tissue from 108 patients submitted to radical prostatectomy, followed by a mean time of 163 months.
    UNASSIGNED: All PLA2 was overexpressed in PCa compared to normal tissue. Interestingly, higher expression of some PLA2 was related to favorable prognostic factors: lower levels of PSA (PLA2G2A, PLA2G4D), lower rates of lymph node metastasis (PLA2G16 and PLA2G1B), and organ-confined disease (PLA2G4A). Most importantly, PLAG4B was independently related to longer disease-free survival.
    UNASSIGNED: This is the first study exploring comprehensively the expression levels of PLA2 in PCa, showing that the higher expression of some PLA2 should be used as biomarkers of good prognosis and longer disease-free survival.
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  • 文章类型: Journal Article
    CONSTANS样(COL)基因在植物生长过程中起着重要作用,发展,和非生物胁迫。共有15个COL基因不均匀地分布在马铃薯基因组的8条染色体上。该家族成员的氨基酸长度为347-453aa,分子量为38.65-49.92kD,等电点为5.13-6.09。通过进化树分析,可以将StCOL家族分为三个亚科,在每个亚家族中具有保守的基序和相似的基因结构位置。启动子顺式作用元件分析显示17个与植物激素有关的顺式作用元件,压力,光的反应。番茄COL基因的共线性分析,马铃薯,拟南芥表明,不同物种中的13个StCOL基因可能具有共同的祖先。在15个StCOL蛋白中鉴定出10个保守基序和6种翻译后修饰。15个StCOL基因表现出由外显子和内含子组成的基因组结构,通常从2到4的数量。结果表明,10个基因在所有马铃薯组织中均显示出显着表达,而其余5个基因在马铃薯转录组数据中被下调表达。定量逆转录聚合酶链反应(qRT-PCR)分析显示8个StCOL基因在马铃薯不同生长阶段的叶片和块茎中的差异表达。以及在2°C处理条件下的7个StCOL基因。这些结果表明,StCOL基因家族可能在调控马铃薯块茎化和应对寒冷胁迫中起重要作用。
    The CONSTANS-like (COL) gene plays important roles in plant growth, development, and abiotic stress. A total of 15 COL genes are unevenly distributed on eight chromosomes in the potato genome. The amino acid length of the family members was 347-453 aa, the molecular weight was 38.65-49.92 kD, and the isoelectric point was 5.13-6.09. The StCOL family can be divided into three subfamilies by evolutionary tree analysis, with conserved motifs and similar gene structure positions in each subfamily. The analysis of promoter cis-acting elements showed 17 cis-acting elements related to plant hormones, stress, and light response. Collinearity analysis of COL genes of tomato, potato, and Arabidopsis showed that 13 StCOL genes in the different species may have a common ancestor. A total of 10 conserved motifs and six kinds of post-translational modifications in the 15 StCOL proteins were identified. The 15 StCOL genes exhibit a genomic structure consisting of exons and introns, typically ranging from two to four in number. The results showed that 10 genes displayed significant expression across all potato tissues, while the remaining five genes were down-expressed in potato transcriptome data. The quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis exhibited differential expression of 8 StCOL genes in the potato leaves and tubers at different growth stages, as well as 7 StCOL genes under 2°C treatment conditions. These results suggested that the StCOL gene family may play an important role in regulating potato tuberization and responding to cold stress.
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  • 文章类型: English Abstract
    人参是多年生草本植物,主要活性成分为人参皂苷。在报道的人参皂苷中,人参皂苷Rg_1不仅具有广泛的药用功能和丰富的含量,而且是中国药典中用于质量评价的主要人参皂苷之一。阐明了人参皂苷Rg_1的主要生物合成途径,为全面深入地分析人参皂苷Rg_1的生物合成及其调控机制奠定了基础。然而,人参皂苷Rg_1的生物合成与涉及多种调控基因和催化酶基因的其他复杂过程有关,还有待全面研究。利用前期研究中获得的4年生人参植物的344份根样的转录组数据及其相应的人参皂苷Rg_1含量,本研究通过DEseq2分析在R语言中筛选出217个具有Rg_1含量变化的差异表达基因(DEGs)。此外,加权基因共表达网络分析(WGCNA)揭示了DEGs中的40个hub基因。进一步进行Pearson相关分析,得到20个候选基因与人参皂苷Rg_1含量显著相关,这些基因被注释为多个代谢过程,包括初级代谢和次级代谢。最后,茉莉酸甲酯对人参不定根的处理表明,这些基因中有16个响应茉莉酸甲酯的诱导而促进人参皂苷Rg_1的生物合成。最后,随机选取16个基因中的1个基因,通过遗传转化和qRT-PCR验证该基因的功能,证实本研究方法学的合理性。上述结果为研究人参皂苷Rg_1合成调控机制奠定了基础,为人参皂苷Rg_1的工业化生产提供了遗传资源。
    Panax ginseng is a perennial herb with the main active compounds of ginsenosides. Among the reported ginsenosides, ginsenoside Rg_1 not only has a wide range of medicinal functions and abundant content but also is one of the major ginsenoside for the quality evaluation of this herb in the Chinese Pharmacopoeia. The main biosynthesis pathway of ginsenoside Rg_1 in P. ginseng has been clarified, which lays a foundation for the comprehensive and in-depth analysis of the biosynthesis and regulatory mechanism of ginseno-side Rg_1. However, the biosynthesis of ginsenoside Rg_1 is associated with other complex processes involving a variety of regulatory genes and catalyzing enzyme genes, which remain to be studied comprehensively. With the transcriptome data of 344 root samples from 4-year-old P. ginseng plants and their corresponding ginsenoside Rg_1 content obtained in the previous study, this study screened out 217 differentially expressed genes(DEGs) with Rg_1 content changes by DEseq2 analysis in R language. Furthermore, the weighted gene co-expression network analysis(WGCNA) revealed 40 hub genes among the DEGs.Pearsoncorrelation analysis was further perforned to yield 20 candidate genes significantly correlated with ginsenoside Rg_1 content, and these genes were annotated to multiple metabolic processes including primary metabolism and secondary metabolism. Finally, the treatment of P. ginseng adventitious roots with methyl jasmonate indicated that 16 of these genes promoted the biosynthesis of ginsenoside Rg_1 in response to methyl jasmonate induction. Finally, one of the 16 genes was randomly selected to verify the function of the gene by genetic transformation and qRT-PCR and to confirm the rationality of the methodology of this study. The above results lay a foundation for studying the mechanism for regulation on the synthesis of ginsenoside Rg_1 and provide genetic resources for the industrial production of ginsenoside Rg_1.
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  • 文章类型: Journal Article
    进化分析表明,GF14家族是保守的,然而,将GF14与植物高度联系起来的证据有限。在我们的调查中,我们发现了ZmGF14s和与植物高度相关的功能特征基因之间的共表达关系。在共表达网络中,我们鉴定了ZmGF14-3,这是一个与三个玉米品种的株高呈正相关的基因表达,我们推测该基因可能与植物高度发育密切相关。随后,我们从玉米B73自交系中克隆了ZmGF14-3,并在拟南芥中过表达,导致明显矮化的转基因表型。内源性植物激素的测量表明,过表达的拟南芥中赤霉素7(GA7)和吲哚-3-乙酸(IAA)的浓度显着降低,此外,qPCR结果突出表明,与野生型相比,植物高度相关基因的表达水平明显下降,因此,可以认为ZmGF14-3通过与各种植物激素相关基因的相互作用在调节玉米的生长发育中起着关键作用。因此,深入研究ZmGF14-3与这些基因之间的潜在相互作用有望对玉米株高发育的分子机制产生有价值的见解。
    The evolutionary analysis showed that the GF14 family was conserved, however, there was limited evidence linking GF14s to plant height. In our investigations, we discovered a co-expression relationship between ZmGF14s and functionally characterized genes linked to plant height. In the co-expression network, we identified ZmGF14-3, a gene expression exhibiting a positive correlation with plant height in three maize varieties, we postulated that this gene could be intimately linked to plant height development. Subsequently, we cloned ZmGF14-3 from the maize B73 inbred line and overexpressed it in Arabidopsis, resulting in markedly dwarfed transgenic phenotypes. Measurements of endogenous phytohormones disclosed a significant reduction in concentrations of Gibberellic Acid 7 (GA7) and Indole-3-Acetic Acid (IAA) in the overexpressed Arabidopsis, furthermore, qPCR results highlighted a pronounced decrease in the expression levels of plant height-related genes when compared to the wild type, therefore, it is plausible to posit that ZmGF14-3 plays a pivotal role in regulating the growth and development of maize through interactions with various phytohormone-related genes. Thus, delving into the potential interactions between ZmGF14-3 and these genes holds the promise of yielding valuable insights into the molecular mechanisms underpinning plant height development in maize.
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  • 文章类型: Journal Article
    小豆是一种典型的短日植物,是一种重要的粮食作物,由于其高的营养和药用价值而被广泛使用。小豆开花时间受多种环境因素的影响,特别是光周期。调整日长可以诱导小豆的花同步,加速育种过程。在这项研究中,我们使用RNA测序分析来确定不同日长对小豆开花时间相关基因表达和代谢特征的影响。
    \'唐山红小豆\'作为本研究的实验材料,并在2022年采用随机区组设计进行了田间试验,采用三种处理方法:短日诱导期5d(SD-5d),10d(SD-10d),15d(SD-15d)。
    总共鉴定了5,939个差异表达基因(DEGs),其中上调38.09%,下调23.81%。对目标基因进行基因本体论富集分析,以鉴定与光系统I和II相关的常见功能。京都基因百科全书和基因组富集分析确定了涉及天线蛋白和昼夜节律的两种途径。此外,通过蓝光代谢途径下调昼夜节律途径中的基因来促进花序;然而,天线蛋白通过增强光信号的接收和加速电子传输来促进开花。在这两种代谢途径中,SD-5d和SD-15d组之间的DEGs数量最大。8个DEGs的实时逆转录-定量聚合酶链反应分析结果与测序结果一致。因此,测序结果准确可靠,确定了8个基因为小豆苗期短日诱导调控的候选基因。
    短日诱导能够根据昼夜节律下调与开花相关的基因的表达,并上调天线蛋白途径中某些基因的表达。研究结果为研究短日诱导的分子机制提供了理论参考,为今后的功能研究验证调控小豆开花的关键基因提供了多层次信息。
    UNASSIGNED: The adzuki bean is a typical short-day plant and an important grain crop that is widely used due to its high nutritional and medicinal value. The adzuki bean flowering time is affected by multiple environmental factors, particularly the photoperiod. Adjusting the day length can induce flower synchronization in adzuki bean and accelerate the breeding process. In this study, we used RNA sequencing analysis to determine the effects of different day lengths on gene expression and metabolic characteristics related to adzuki bean flowering time.
    UNASSIGNED: \'Tangshan hong xiao dou\' was used as the experimental material in this study and field experiments were conducted in 2022 using a randomized block design with three treatments: short-day induction periods of 5 d (SD-5d), 10 d (SD-10d), and 15 d (SD-15d).
    UNASSIGNED: A total of 5,939 differentially expressed genes (DEGs) were identified, of which 38.09% were up-regulated and 23.81% were down-regulated. Gene ontology enrichment analysis was performed on the target genes to identify common functions related to photosystems I and II. Kyoto Encyclopedia of Genes and Genomes enrichment analysis identified two pathways involved in the antenna protein and circadian rhythm. Furthermore, florescence was promoted by down-regulating genes in the circadian rhythm pathway through the blue light metabolic pathway; whereas, antenna proteins promoted flowering by enhancing the reception of light signals and accelerating electron transport. In these two metabolic pathways, the number of DEGs was the greatest between the SD-5d VS SD-15d groups. Real-time reverse transcription‒quantitative polymerase chain reaction analysis results of eight DEGs were consistent with the sequencing results. Thus, the sequencing results were accurate and reliable and eight genes were identified as candidates for the regulation of short-day induction at the adzuki bean seedling stage.
    UNASSIGNED: Short-day induction was able to down-regulate the expression of genes related to flowering according to the circadian rhythm and up-regulate the expression of certain genes in the antenna protein pathway. The results provide a theoretical reference for the molecular mechanism of short-day induction and multi-level information for future functional studies to verify the key genes regulating adzuki bean flowering.
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