Genetic linkage map construction and quantitative trait loci mapping of agronomic traits in Gloeostereum incarnatum

Jiang Wan-Zhu,Yao Fang-Jie,Lu Li-Xin,Fang Ming,Wang Peng,Zhang You-Min,Meng Jing-Jing,Lu Jia,Ma Xiao-Xu,He Qi,Shao Kai-Sheng 한국미생물학회 2021 The journal of microbiology Vol.59 No.1

Gloeostereum incarnatum is an edible medicinal mushroom widely grown in China. Using the whole genome of G. incarnatum, simple sequence repeat (SSR) markers were developed and synthetic primers were designed to construct its first genetic linkage map. The 1,048.6 cm map is composed of 10 linkage groups and contains 183 SSR markers. In total, 112 genome assembly sequences were anchored, representing 16.43 Mb and covering 46.41% of the genome. Selfing populations were used for quantitative trait loci (QTL) targeting, and the composite interval mapping method was used to co-localize the mycelium growth rate (potato dextrose agar and sawdust), growth period, yield and fruiting body length, and width and thickness. The 14 QTLs of agronomic traits had LOD values of 3.20–6.51 and contribution rates of 2.22– 13.18%. No linkage relationship was found between the mycelium growth rate and the growth period, but a linkage relationship was observed among the length, width and thickness of the fruiting bodies. Using NCBI’s BLAST alignment, the genomic sequences corresponding to the QTL regions were compared, and a TPR-like protein candidate gene was selected. Using whole-genome data, 138 candidate genes were found in four sequence fragments of two SSR markers located in the same scaffold. The genetic map and QTLs established in this study will aid in developing selective markers for agronomic traits and identifying corresponding genes, thereby providing a scientific basis for the further gene mapping of quantitative traits and the marker-assisted selection of functional genes in G. incarnatum breeding programs.

Analysis of the Genome Sequence of Strain GiC-126 of Gloeostereum incarnatum with Genetic Linkage Map

( Wan-zhu Jiang ),( Fang-jie Yao ),( Ming Fang ),( Li-xin Lu ),( You-min Zhang ),( Peng Wang ),( Jing-jing Meng ),( Jia Lu ),( Xiao-xu Ma ),( Qi He ),( Kai-sheng Shao ),( Asif Ali Khan ),( Yun-hui Wei 한국균학회 2021 Mycobiology Vol.49 No.4

Gloeostereum incarnatum has edible and medicinal value and was first cultivated and domesticated in China. We sequenced the G. incarnatum monokaryotic strain GiC-126 on an Illumina HiSeq X Ten system and obtained a 34.52-Mb genome assembly sequence that encoded 16,895 predicted genes. We combined the GiC-126 genome with the published genome of G. incarnatum strain CCMJ2665 to construct a genetic linkage map (GiC-126 genome) that had 10 linkage groups (LGs), and the 15 assembly sequences of CCMJ2665 were integrated into 8 LGs. We identified 1912 simple sequence repeat (SSR) loci and detected 700 genes containing 768 SSRs in the genome; 65 and 100 of them were annotated with gene ontology (GO) terms and KEGG pathways, respectively. Carbohydrate-active enzymes (CAZymes) were identified in 20 fungal genomes and annotated; among them, 144 CAZymes were annotated in the GiC-126 genome. The A mating-type locus (MAT-A) of G. incarnatum was located on scaffold885 at 38.9 cM of LG1 and was flanked by two homeodomain (HD1) genes, mip and beta-fg. Fourteen segregation distortion markers were detected in the genetic linkage map, all of which were skewed toward the parent GiC-126. They formed three segregation distortion regions (SDR1-SDR3), and 22 predictive genes were found in scaffold1920 where three segregation distortion markers were located in SDR1. In this study, we corrected and updated the genomic information of G. incarnatum. Our results will provide a theoretical basis for fine gene mapping, functional gene cloning, and genetic breeding the follow-up of G. incarnatum.

Effects of wilting and additives on the ensiling quality and in vitro rumen fermentation characteristics of sudangrass silage

Wan, Jiang Chun,Xie, Kai Yun,Wang, Yu Xiang,Liu, Li,Yu, Zhu,Wang, Bing Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.1

Objective: This study was conducted to investigate the effects of molasses and Lactobacillus plantarum on the ensiling quality and in vitro rumen fermentation of sudangrass silage prepared with or without wilting. Methods: The ensiling experiment, measured with 3 replicates, was carried out according to a 2×4 (wilted stages×additives) factorial treatment structure. Dry matter of the fresh (210 g/kg fresh matter) or wilted (305 g/kg fresh matter) sudangrass were ensiled (packed into 5.0-L plastic jars) without additive (control) or with molasses (M), Lactobacillus plantarum (LP), or molasses + Lactobacillus plantarum (M+LP). After 60 days of ensiling, the silages were analyzed for the chemical, fermentation, and in vitro characteristics. Results: After 60 days of ensiling, the fermentation parameters were affected by wilted, the additives and the interactions of wilted with the additives (p<0.05). The M+LP treatment at wilted had higher lactic acid levels and V-score (p<0.05) but lower pH values and butyric acid concentrations than the other treatments. In comparison with sudangrass before ensiling, after ensiling had lower dry matter and higher non-fibrous carbohydrate. The in vitro gas production, in vitro dry matter digestibility, in vitro crude protein digestibility, and in vitro acid fiber detergent digestibility changed under the effects of the additives. Significant interactions were observed between wilted and the additives in terms of in vitro gas production at 48 h, asymptotic gas production, gas production rate, half time, and the average gas production rate. The total volatile fatty acid levels in the additive treatments were higher than those in the control. Conclusion: Wilting and supplementation with molasses and Lactobacillus plantarum had the ability to improve the ensiling quality and in vitro nutrient digestibility of sudangrass silage. The M+LP treatment at wilted exhibited the strongest positive effects on silage quality and in vitro ruminal fermentation characteristics.

Coalescence behavior of aqueous drops in water-in-oil emulsions under high-frequency pulsed AC fields

Wanli Kang,Menglan Li,Hongbin Yang,Xin Kang,Fang Wang,Haizhuang Jiang,Min Zhang,Tongyu Zhu,Bauyrzhan Sarsenbekuly 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.93 No.-

High-frequency pulsed alternating currentfield (HFPACF) has attracted attentions owing to its excellentperformances of eliminating short circuit, saving energy and reducing environmental pollution. To studythe coalescence mechanism of aqueous drops in water-in-oil (W/O) emulsions under HFPACF, micro-behavior of dispersed drops for W/O emulsion was monitored by using a self-designed micro-visualmodel and coalescence mechanism was analyzed by discussing effects of pulse amplitude, pulsefrequency, pulse width ratio, demulsifier concentration, aqueous mass ratio of emulsion, and differentmodel oil emulsions. The results show that the dispersed drops coalesce under the action of electricfield,and the particle size of dispersed drops increases with the increase of pulse frequency and amplitude. When the pulse frequency or amplitude reach to a critical value, aqueous drops are driven to form waterstring or water channel between two electrodes which hinders further drops coalescence in other areas. However, with the increase of pulse width ratio, the size of dispersed drops increases slowly. Theoptimum pulse frequency and pulse amplitude are obtained at 3.9 kV and 4.21 kHz, respectively, theoptimal pulse width range is 54.9%-84.4%. When the concentration of demulsifier is 60 mg/L, thesynergistic demulsification effect achieves the highest performance. When the aqueous mass ratio ofemulsion reaches a high level (over 30%), which means the drops in emulsion have big size, thecoalescence performance under the same electricfield strength is great. Also, it is discovered that thedispersed drops in Yongping model oil emulsion have difficulty in forming water chains, since there aremuch asphaltenes and resins in the water-oil interface leading to high strength offilm. For Shuanghe oilemulsion drops are prevented from coalescing, because it contains a mass of paraffin, which can stabilizeemulsion at low temperature.

Experimental Study on Influence Factors and Empirical Formula of K0 for Coarse Grained Soil

Mingjie Jiang,Jungao Zhu,Shengshui Chen,Xiaodong Wang,Wanli Guo 대한토목학회 2019 KSCE JOURNAL OF CIVIL ENGINEERING Vol.23 No.8

The earth pressure coefficient at rest K0 is a key mechanical parameter of soil, so studying K0 of coarse grained soil has important theoretical value and practical significance in geotechnical engineering works. To investigate the influence factors of K0 for coarse grained soil, a series of K0 compression tests for a sandy gravel and a rockfill were conducted by utilizing a newly-developed largescale K0 device. The test data show that there is a negative linear correlation between K0 and initial relative density Dr0. The data also show that the increasing vertical effective stress will decrease the K0 value, and the effect of low on the K0 is more obvious. Large-scale consolidated drained (CD) triaxial tests for soils used for K0 compression test were carried out, and according to the data of CD triaxial tests and K0 compression tests the correlation between K0 and effective internal friction angle φ′ is established. Based on the result, an empirical equation is presented. This equation can be used to predict the K0 value of the coarse grained soil under a random consolidation condition and stress condition according to the value of φ′. Furthermore, this empirical formula is verified by K0 compression tested data.

Adaptive extraction method for trend term of machinery signal based on extreme-point symmetric mode decomposition

Yong Zhu,Wan-lu Jiang,Xiangdong Kong 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.2

In mechanical fault diagnosis and condition monitoring, extracting and eliminating the trend term of machinery signal are necessary. In this paper, an adaptive extraction method for trend term of machinery signal based on Extreme-point symmetric mode decomposition (ESMD) was proposed. This method fully utilized ESMD, including the self-adaptive decomposition feature and optimal fitting strategy. The effectiveness and practicability of this method are tested through simulation analysis and measured data validation. Results indicate that this method can adaptively extract various trend terms hidden in machinery signal, and has commendable self-adaptability. Moreover, the extraction results are better than those of empirical mode decomposition.

Study on an emulsion-type blockage removal agent for heavy oil recovery enhanced by polymer

Tongyu Zhu,Hongbin Yang,Haizhuang Jiang,Xin Kang,Menglan Li,Min Zhang,Wanli Kang,Bauyrzhan Sarsenbekuly,Saule Aidarova,Maratbek Gabdullin 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.89 No.-

In polymerflooding process, the poor solubility of polymer and the wrap of incompletely dissolvedpolymer particles with heavy oil lead to the generation of complicated blockage, which seriously affectsthe normal production of wells. Therefore, how to fabricate an effective blockage removal agent isparticularly important. Based on the blockage from Bohai Offshore Oilfield in China, a blockage removalagent composed of (0.5 wt% potassium persulfate + kerosene (the ratio of kerosene: blockage is 3:5)+0.3 wt% OP-10, the oil-water ratio is 1:9) was developed. The removal effect and mechanism werecharacterized by weight loss method and core test. Moreover, the emulsification property of the removalagent was also evaluated by microscopic appearance. The results showed that the blockage removal agentcan be formulated as an O/W emulsion and had good stability for more than 72 h. Core test showed thatthe permeability had a significant improvement after injection of removal agent. The emulsion-typeremoval agent can demulsify after contact with the blockage, then the oil-soluble detergent as internalphase in emulsion can be released which contributes to the wash off of heavy oil. Accompanied with thepolymer degradation by the oxidant, this agent realized the effective dissolution and removal of blockage.

Hypoxia-induced circRNF13 promotes the progression and glycolysis of pancreatic cancer

Zhao Qiuyan,Zhu Zhonglin,Xiao Wenqin,Zong Guanzhao,Wang Chuanyang,Jiang Weiliang,Li Kai,Shen Jie,Guo Xingya,Cui Jianhua,Guo Lihong,Wan Rong 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-

Pancreatic cancer (PC) is one of the most malignant tumors. Rapid progression and distant metastasis are the main causes of patient death. Hypoxia is a hallmark of multiple cancers and is involved in tumor biology. However, little is known about the roles of circRNAs in glycolysis and hypoxia-mediated progression of PC. Here, the expression pattern of hypoxia-related circRNAs was analyzed using RNA sequencing. A unique circRNA termed circRNF13 was found to be upregulated in PC tissues and may be a potential prognostic indicator. HIF-1α and EIF4A3 are involved in regulating the biogenesis of circRNF13. Furthermore, circRNF13 was validated to exert a stimulative effect on cell proliferation, angiogenesis, invasion and glycolysis. Importantly, we found that circRNF13 promoted PDK3 levels by acting as a miR-654-3p sponge, thus promoting the PC malignant process. Collectively, our results reveal that hypoxia-induced circRNF13 mediated by HIF-1α and EIF4A3 promotes tumor progression and glycolysis in PC, indicating the potential of circRNF13 as a prognostic biomarker and therapeutic target for PC.

Rhaponticin suppresses the hypoxia-induced factor-1 alpha-mediated aggressive phenotype of tongue squamous cell carcinoma

Wu Yuan,Wan Xiaowen,Shao Yisen,Wang Wei,Huang Wenquan,Zhu Jiajun,Jiang Lin 대한독성 유전단백체 학회 2024 Molecular & cellular toxicology Vol.20 No.2

Emerging evidence suggests that rhaponticin, a stilbene monomeric compound isolated from North China rhubarb, has been shown to exhibit significant biological activity against tumors. However, the anticancer effects and mechanisms of rhaponticin in tongue squamous cell carcinoma (TSCC) remain elusive.We investigated the changes of migration and invasion abilities and EMT progression of TSCC cells treated with different concentrations of rhaponticin under hypoxia, as well as the possible mechanisms, in order to initially explore the effects of rhaponticin on the biological characteristics of TSCC cells under hypoxia.The number of cell migration and invasion was prominently increased, E-cadherin protein was down-regulated, and N-cadherin and HIF-1α protein expression was elevated under hypoxia. Rhaponticin intervention strikingly prevented the increased abilities of migration and invasion and EMT of TSCC cells under hypoxia. This was followed by further validation finding that rhaponticin indeed leads to reduced HIF-1α post-transcriptional activity. Mechanistically, rhaponticin may bind to aryl-hydrocarbon nuclear translocator (ARNT) domain of HIF-1α.Rhaponticin repressed the invasion and migration abilities and EMT process of TSCC cells under a hypoxic environment in vitro by targeted suppression of HIF-1α. Background Emerging evidence suggests that rhaponticin, a stilbene monomeric compound isolated from North China rhubarb, has been shown to exhibit significant biological activity against tumors. However, the anticancer effects and mechanisms of rhaponticin in tongue squamous cell carcinoma (TSCC) remain elusive. Objective We investigated the changes of migration and invasion abilities and EMT progression of TSCC cells treated with different concentrations of rhaponticin under hypoxia, as well as the possible mechanisms, in order to initially explore the effects of rhaponticin on the biological characteristics of TSCC cells under hypoxia. Results The number of cell migration and invasion was prominently increased, E-cadherin protein was down-regulated, and N-cadherin and HIF-1α protein expression was elevated under hypoxia. Rhaponticin intervention strikingly prevented the increased abilities of migration and invasion and EMT of TSCC cells under hypoxia. This was followed by further validation finding that rhaponticin indeed leads to reduced HIF-1α post-transcriptional activity. Mechanistically, rhaponticin may bind to aryl-hydrocarbon nuclear translocator (ARNT) domain of HIF-1α. Conclusions Rhaponticin repressed the invasion and migration abilities and EMT process of TSCC cells under a hypoxic environment in vitro by targeted suppression of HIF-1α.

Aluminum speciation in drinking water distribution system: A case study in northeastern China

Wen-Dong Wang,Hong-Wei Yang,Jing Jiang,Zhen-Zhen Ding,Wan-Peng Zhu 한국화학공학회 2011 Korean Journal of Chemical Engineering Vol.28 No.5

This study aimed to investigate the variation of aluminum species in a drinking water distribution system in a city in northeastern China. The aluminum species were determined by fluorometric methods. Results showed that suspended aluminum (Sus-Al) was the major species in the drinking water supplied by plant B and accounted for about 42% of the total aluminum (Tol-Al). The concentrations of Sus-Al and Tol-Al could be controlled effectively by introducing reservoir water. In the water source switching process, the water quality variation led to the suddenly release of Sus-Al, especially in a cast iron pipeline that had been in service for more than 30 years, but the soluble aluminum varied little. In the plant A service areas, the average concentrations of the inorganic monomeric aluminum (IM-Al),monomeric aluminum (Mon-Al), and soluble aluminum (Sol-Al) were 0.008 mg L^−1, 0.03 mg L^−1, and 0.04 mg L^−1,respectively, and their concentrations in the plant B service areas were higher. The pH and fluoride were the major parameters affecting the soluble aluminum speciation. With a solution pH of 6.5-7.5 and fluoride below 0.3 mg L^−1,the Sol-Al could be controlled within 0.1 mg L^−1. Water quality regulation and terminal filtration were suggested for residual aluminum control.