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New material of Coniopteris simplex from the Middle Jurassic of the Ordos Basin,Inner Mongolia,China and implications on its spatio-temporal distribution and paleogeography

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Journal of Palaeogeography 2024年第2期13卷 199-211页

作者： Yun-Feng Li Chang-Lu Zhang Fei Liang Xiao Tan Fan-Hao Gong Chun-Lin Sun Tao Li Yu-Ling Na research center of paleontology and stratigraphy Jilin UniversityChangchun 130026Jilin ProvinceChina College of Earth Sciences Jilin UniversityChangchun 130061Jilin ProvinceChina College of paleontology Shenyang Normal UniversityShenyang 110034Liaoning ProvinceChina Key Lab of Evolution of Past Life in NE Asia Ministry of Natural ResourcesShenyang Normal UniversityShenyang 110034Liaoning ProvinceChina Shenyang center of Geological Survey China Geological SurveyShenyang 110034Liaoning ProvinceChina

Coniopteris simplex is a common component in many Jurassic ***,due to morphological variations in sterile fronds and incomplete preservation of reproductive organs,its classification has been controversial for a long ***,we present new material collected from the Middle Jurassic Yan’an Formation in the Ordos Basin,Inner *** new material reveals important morphological characters,including hemi-dimorphic fronds,two forms of sterile pinnae,short-stalked sori and sporangia on fertile fronds,annulus of sporangium composed of about 30 cells,in situ rounded triangular spores with protruded suture,and the lips of trilete laesura encircled by one or two rows of small *** on these observations,we emended the diagnosis of this common *** spatio-temporal distribution of Coniopteris simplex shows that the iconic species was restricted to the paleolatitudes ranging from 19.5°N to 48.9°N in the Northern Hemisphere during the Early—Late Jurassic,mainly distributed in the tropical to paratropical zones,and the paleolongitude ranging from 9.6°E to 129.3°E,which may be limited by the opening of the Viking Corridor and the splitting of the Central Atlantic Ocean.

关键词： Coniopteris simplex Yan'an Formation Middle Jurassic Inner Mongolia Paleogeography

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Discovery and Significance of the Triassic–Late Paleozoic Double-layered Basement in the Songliao Basin: Based on the Complete Coring Data from ICDP Borehole SK2

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Acta Geologica Sinica(English Edition) 2024年第S1期 75-76页

作者： YANG Zhuolong WANG Pujun GAO Youfeng GAO Chuancheng TANG Xin College of Earth Sciences Jilin University research center of Palaeontology and stratigraphy Jilin University

The Songliao Basin（SLB） covers an area of approximately 260,000 km2in northeastern Asia and preserves a continuous and complete Cretaceous terrestrial record（Wang et al., 2021）. The region is the most important petroliferous sedimentary basin in China because of its continual annual oil and gas equivalent production of tens of millions of tons（ca. 220–440 million barrels per year） since 1959. The SLB was previously thought to have developed on Hercynian basement and accumulated continuous sedimentary deposits during the Late Jurassic and Cretaceous（Wan et al., 2013; Wang et al., 2016）.

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A Novel Gymnosperm Wood from the Lopingian(Late Permian)in Zhangzi,Shanxi,North China and Its Paleoecological and Paleogeographic Implications

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Journal of Earth Science 2024年第1期35卷 167-176页

作者： Xiao Shi Jianxin Yu Yuewu Sun Zhen Xu Hui Li College of Earth Sciences Jilin UniversityChangchun 130061China International center of Future Science Dinosaur Evolution Research CenterJilin UniversityChangchun 130012China State Key Laboratory of Biogeology and Environmental Geology School of Earth SciencesChina University of GeosciencesWuhan 430074China research center of Palaeontology and stratigraphy Jilin UniversityChangchun 130026China Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation East China University of TechnologyNanchang 330013China

The Permian-Triassic transition saw extreme climatic changes that severely impacted the terrestrial *** plants,particularly fossil woods,are sensitive to climatic changes,and they,therefore,are unique materials revealing extreme environmental and climatic changes on land at that *** conifer woods were discovered in the Lopingian(Late Permian)strata of the Sunjiagou Formation in Shanxi Province,North *** newly finding permineralized woods record the unique landscape of Lopingian North *** represent a new conifer genus and species:Shanxiopitys zhangziensis *** *** of growth pattern and anatomical characteristics of the fossil woods indicate these trees grew under optimal growing conditions,and without seasonal growth ***,climate signals from leaf fossils,vertebrate fossils and sedimentary evidences indicate a strongly seasonal climate in North China during the ***,it is speculated that these trees likely lived in the gallery forests,which were distributed along the paleo-rivers within a seasonal landscape in the central North China block during the Lopingian.

关键词： Shanxiopitys zhangziensis gen.et sp.nov. wood ecology geography gallery forest Lopingian North China

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Emerging strategies for nerve repair and regeneration in ischemic stroke:neural stem cell therapy

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Neural Regeneration research 2024年第11期19卷 2430-2443页

作者： Siji Wang Qianyan He Yang Qu Wenjing Yin Ruoyu Zhao Xuyutian Wang Yi Yang Zhen-Ni Guo Stroke center Department of Neurologythe First Hospital of Jilin UniversityChangchunJilin ProvinceChina Neuroscience research center Department of Neurologythe First Hospital of Jilin UniversityChangchunJilin ProvinceChina Department of Breast Surgery General Surgery Centerthe First Hospital of Jilin UniversityChangchunJilin ProvinceChina

Ischemic stroke is a major cause of mortality and disability worldwide,with limited treatment options available in clinical *** emergence of stem cell therapy has provided new hope to the field of stroke treatment via the restoration of brain neuron *** neural stem cells are beneficial not only in cell replacement but also through the bystander *** stem cells regulate multiple physiological responses,including nerve repair,endogenous regeneration,immune function,and blood-brain barrier permeability,through the secretion of bioactive substances,including extracellular vesicles/***,due to the complex microenvironment of ischemic cerebrovascular events and the low survival rate of neural stem cells following transplantation,limitations in the treatment effect remain *** this paper,we provide a detailed summary of the potential mechanisms of neural stem cell therapy for the treatment of ischemic stroke,review current neural stem cell therapeutic strategies and clinical trial results,and summarize the latest advancements in neural stem cell engineering to improve the survival rate of neural stem *** hope that this review could help provide insight into the therapeutic potential of neural stem cells and guide future scientific endeavors on neural stem cells.

关键词： bystander effect cell replacement extracellular vesicles ischemic stroke neural stem cells neural stem cell engineering

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Cloning, Characterization and Transformation of Methyltransferase 2a Gene (Zmet2a) in Maize (Zea mays L.)

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Phyton-International Journal of Experimental Botany 2024年第7期93卷 1767-1779页

作者： Xin Qi Yu Wang Xing Zhang Xiaoshuang Wei Xinyang Liu Zhennan Wang Zhenhui Wang Fenglou Ling Faculty of Agronomy Jilin Agricultural UniversityChangchun130118China Rice research center Jilin Agricultural UniversityChangchun130118China

DNA methylation is an important epigenetic regulatory mechanism,it regulates gene expression by recruiting proteins involved in gene repression or by inhibiting the binding of transcription factor(s)to *** this study,a novel methyltransferase 2a gene(Zmet2a)was cloned in maize and identiﬁed by polymerase chain reaction-base(PCR-base)using a bioinformatics *** Zmet2a cDNA sequence is 2739 bp long and translates to 912 amino acid *** Zmet2a protein revealed that it contains BAH and CHROMO structural domains,is a non-transmembrane protein that is hydrophilically unstable,and has no signal peptide ***,we veriﬁed the biological roles of Zmet2a using transgenic Arabidopsis overexpressing Zmet2a and Zmet2a-knockout *** Zmet2a Arabidopsis thaliana showed highly signiﬁcant advancement inﬂowering time,and Zmet2a-knockout maize showed advancement inﬂowering time,with signiﬁcant changes in several ***,these report the role of Zmet2a in the regulation ofﬂowering time,which will lay a foundation for revealing the biological function and epigenetic regulation mechanism of Zmet2a in the growth,development andﬂowering of maize.

关键词： DNA methylation methyltransferase Zea mays L ﬂowering time functional analysis

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Unraveling the regulatory network of flower coloration in soybean:Insights into roles of GmMYBA3 and GmMYBR1

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The Crop Journal 2024年第2期12卷 443-455页

作者： Ruifang Gao Yueqing Li Yanan Wang Xiaotong Shan Siqi Yang Ye Zhang Saiyu Ma Chunbao Zhang Jianchun Qin Li Wang Xiang Gao College of Plant Science Jilin UniversityChangchun 130062JilinChina Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics&Cytology Northeast Normal UniversityChangchun 130024JilinChina Soybean research Institute National Engineering Research Center for SoybeanJilin Academy of Agricultural SciencesChangchun 130033JilinChina

Anthocyanins play crucial roles in pollen protection and pollinator attraction in flowering ***,the mechanisms underlying flower color determination and whether floral anthocyanin regulators participate in other processes remain largely unresolved in soybeans(Glycine max).In this study,we investigated the genetic components and mechanisms governing anthocyanin biosynthesis in soybean *** and genetic studies have characterized two antagonistic regulators,the positive activator GmMYBA3 and the negative repressor GmMYBR1,that modulate the gene expression of anthocyanin biosynthesis in soybean *** findings revealed a regulatory interplay between GmMYBA3 and GmMYBR1 bridged by GmTT8a,highlighting the complexity of anthocyanin regulation in different soybean *** of additional soybean cultivars demonstrated the universality of GmMYBA3 and GmMYBR1 in regulating floral anthocyanin biosynthesis-related genes,with GmF3’5’H identified as a crucial determinant of white flower *** study provides a molecular mechanism underlying soybean flower color determination,paving the way for the molecular modification of soybean flowers to probably enhance their resistance to abiotic stresses and attractiveness to pollinators.

关键词： Anthocyanin Flower color determination MBW complex MYB repressor Pleiotropic regulator

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Discovery of the choristodere Hyphalosaurus baitaigouensis from the Lower Cretaceous Jiufotang Formation of western Liaoning,China and its paleobiogeographic significance

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Journal of Palaeogeography 2024年第3期13卷 547-562页

作者： Li-Jun Zhang Shu-An Ji Hai-Chun Zhang South China Sea Culture Museum Hainan Tropical Ocean UniversitySanya 572022Hainan ProvinceChina Key Laboratory of stratigraphy and paleontology Ministry of Natural ResourcesInstitute of GeologyChinese Academy of Geological SciencesBeijing 100037China State Key Laboratory of Palaeobiology and stratigraphy Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and PaleoenvironmentChinese Academy of SciencesNanjing 210008Jiangsu ProvinceChina

The water-living reptile genus Hyphalosaurus was previously discovered in the Lower Cretaceous Yixian Formation bearing the middle Jehol Biota in western Liaoning,*** complete skeletons of Hyphalosaurus are reported for the first time from the Jiufotang Formation bearing the late Jehol Biota at two sites in western *** show the typical characteristics of Hyphalosaurus baitaigouensis in terms of the contact between some cranial bones and the number of cervical and dorsal vertebrae,and therefore are assigned to *** discovery extends the stratigraphic range of this species from the Yixian Formation to the overlying Jiufotang *** paper further briefly compares the main characteristics of the two skeletons,summarizes the temporal and spatial distribution of Hyphalosaurus,and discusses the palaeogeographic evolution of western Liaoning at the middle and late Jehol Biota stages based on the aquatic habits of Hyphalosaurus and the geological background of western *** analytical results show that the volcanic downwarped lakes,with distinct geographical divisions in western Liaoning during the deposition of the Yixian Formation,had not completely disappeared till the deposition of the Jiufotang *** palaeo-lake in the Fuxin-Yixian Basin underwent the process of generation,expansion and shrinkage during the depositional period of the Yixian Formation and finally merged into a large *** palaeo-Dalinghe River,which connected the main basins in western Liaoning during the depositional period of the Jiufotang Formation,was formed simultaneously.

关键词： Western liaoning Jehol biota Jiufotang formation Hyphalosaurus baitaigouensis Palaeobiogeography

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Discovery of Triassic coal-bearing strata in the Daxing'anling Region, Northeast China

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Science Bulletin 2024年第16期69卷 2471-2473页

作者： Zhuolong Yang Pujun Wang Yulong Huang Youfeng Gao Chongyang Chen College of Earth Sciences Jilin UniversityChangchun 130061China research center of Palaeontology and stratigraphy jilin UniversityChangchun 130026China College of Geographic Sciences and Tourism jilin Normal UniversitySiping 136000China

During the late Paleozoic to early Mesozoic,a tectonic transition occurred in Northeast China,marking a shift from the Paleo-Asian Ocean to the Mongolian Okhotsk and Paleo-Pacific tectonic domains[1].As a result of regional compression induced by oceanic closure and continental collision,stratigraphic records from this period are scarce,but such records are essential for elucidating the tectonic and paleographic evolution of the region during the transition.

关键词： Northeast tectonic strata

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A novel semi-dominant allele of the transmembrane NAC transcription factor ZmNTL2 reduces the size of multiple maize organs

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The Crop Journal 2024年第3期12卷 676-687页

作者： Chuan Li Yun Bai Yuwei Hou Siyu Wang Yue Xin Tao Yu Jing Wang Xiaowei Liu Hongyang Yi Chao Xia Hai Lan Moju Cao State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Maize Research InstituteSichuan Agricultural UniversityChengdu 611130SichuanChina jilin Engineering research center for Crop Biotechnology Breeding College of Plant ScienceJilin UniversityChangchun 130012JilinChina

Maize plant architecture influences planting density and,in turn,grain *** of the plant architecture-related traits can be described as organ *** describe a miniature maize mutant,Tiny plant 4(Tip4),which exhibits reduced size of multiple organs and exhibits a semi-dominant monofactorial inheritance *** cloning confirmed that a 4-bp deletion in the NAC TF with transmembrane motif 1-Like(NTL)gene ZmNTL2,denoted as ZmNTL2^(Δ),confers the Tip4 ***-PCR showed that ZmNTL2 was expressed in all tested ***2 functions as a transcriptional activator and is located in both the nucleus and *** mutation does not affect the mRNA abundance of ZmNTL2 locus,but it does result in the loss of transmembrane domain and confines the ZmNTL2^(Δ)protein to the *** out ZmNTL2 has no effect on maize organ size development,indicating that the 4-bp deletion might be a gain-of-function mutation in organ size *** transcriptome sequencing with cytokinin and auxin content determination suggests that the decreased organ size may be possibly mediated by changes in hormone homeostasis.

关键词： Organ size c-ray mutagenesis Membrane-bound NAC TF Hormone homeostasis Maize

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Large-Scale CRISPR Screen of LDLR Pathogenic Variants

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research 2024年第2期2023卷 213-225页

作者： Mengjing Li Lerong Ma Yiwu Chen Jianing Li Yanbing Wang Wenni You Hongming Yuan Xiaochun Tang Hongsheng Ouyang Daxin Pang Key Lab for Zoonoses research Ministry of EducationAnimal Genome Editing Technology Innovation CenterCollege of Animal SciencesJilin UniversityChangchunJilin Province 130062China The Institute of Translational Medicine Tianjin Union Medical Center of Nankai UniversityTianjin 300071China Chongqing researchInstitute Jilin UniversityChongqing 401123China Chongqing Jitang Biotechnology research Institute Co.Ltd. ChongqingChina

Familial hypercholesterolemia(FH)is a frequently occurring genetic disorder that is linked to early-onset cardiovascular *** left untreated,patients with this condition can develop severe cardiovascular ***,many patients remain undiagnosed,and even when diagnosed,the treatment is often not *** mutations in the LDLR gene are the primary cause of FH,predicting whether novel variants are pathogenic is not a straightforward *** the functionality of LDLR variants is crucial in uncovering the genetic basis of *** study utilized CRISPR/Cas9 cytosine base editors in pooled screens to establish a novel approach for functionally assessing tens of thousands of LDLR variants on a large scale.A total of more than 100 single guide RNAs(sgRNAs)targeting LDLR pathogenic mutations were successfully screened with relatively high *** of these,5 sgRNAs were further subjected to functional verification studies,including 1 in the promoter,1 in the antisense RNA,1 in the exon,and 2 in the *** for the variant caused by the sgRNA located at intron 16,the functionalities of the other LDLR variants were all *** high similarity of LDLR intron sequences may lead to some false ***,these results confirm the reliability of the large-scale screening strategy for functional analysis of LDLR variants,and the screened candidate pathogenic mutations could be used as an auxiliary means of clinical gene detection to prevent FH-induced heart disease.

关键词： LDLR Screen straight

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