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Genomic location of Gb1, a unique gene conferring wheat resistance to greenbug biotype F

作物学报:英文版 2023年第5期11卷 1595-1599页

作者： Xiangyang Xu Genqiao Li Guihua Bai Brett FCarver Ruolin Bian Amy Bernardo jscott armstrong USDA-ARS Wheat Peanutand Other Field Crop Research UnitStillwaterOK 74075USA USDA-ARS Hard Winter Wheat Genetics Research Unit ManhattanKS 66506USA Department of Agronomy Kansas State UniversityManhattanKS 66506USA Department of Plant and Soil Sciences Oklahoma State UniversityStillwaterOK 74078USA

Greenbug(Schizaphis graminum, Rondani) is a serious insect pest in many wheat growing regions and has been infesting cereal crops in the USA for over a century. Continuous occurrence of new greenbug biotypes makes it essential to explore all greenbug resistant sources available to manage this pest. Gb1, a recessive greenbug resistance gene in DS28A, confers resistance to several economically important greenbug biotypes and is the only gene found to be resistant to greenbug biotype F. A set of 174 F_(2:3)lines from the cross DS28A × Custer was evaluated for resistance to greenbug biotype F in 2020 and 2022. Selective genotyping of the corresponding F_(2) population using single nucleotide polymorphism(SNP) markers generated by genotyping-by-sequencing(GBS) led to the identification of a candidate genomic region for Gb1. Thus, SSR markers previously mapped in this region were used to genotype the entire F2population,and kompetitive allele specific PCR(KASP) markers were also developed from SNPs in the target ***1 was placed in the terminal region of the short arm of chromosome 1A, and its location was confirmed in a second population derived from the cross DS28A × PI 697274. The combined data analysis from the two mapping populations delimited Gb1 to a < 1 Mb interval between 13,328,200 and 14,241,426 bp on1AS.

关键词： Wheat Greenbug resistance gene Gb1 KASP markers Linkage analysis Genotyping-by-sequencing

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EGFR signaling augments TLR4 cell surface expression and function in macrophages via regulation of Rab5a activation

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Protein & Cell 2020年第8期11卷 144-149页

作者： Jing Tang Bowei Zhou Melanie jscott Linsong Chen Dengming Lai Erica KFan Yuehua Li Qiang Wu Timothy RBilliar Mark AWilson Ping Wang Jie Fan The Department of Anesthesiology Affiliated hospital of Guangdong Medical UniversityZhanjiang 524000China Department of Surgery University of Pittsburgh School of MedicinePittsburghPA 15213USA Research and Development Veterans Affairs Pittsburgh Healthcare SystemPittsburghPA 15240USA Department of Anesthesiology Nanfang HospitalSouthern Medical UniversityGuangzhou 510515China Department of Thoracic Surgery Shanghai Pulmonary HospitalTongji University School of MedicineShanghai 200433China Department of Cardiovascular Surgery The Children's Hospital of Zhejiang University School of MedicineHangzhou 310052China University of Pittsburgh The Graduate School of Public Health PittsburghPA 15213USA Laboratory of Tropical Biomedicine and Biotechnology School of Tropical Medicine and Laboratory MedicineHainan Medical UniversityHaikou 571199China The Feinstein Institute for Medical Research ManhassetNY 11030USA McGowan Institute for Regenerative Medicine University of PittsburghPittsburghPA 15219USA Key Laboratory of Organ Injury/Protection and Translational Medicine of Zhanjiang Zhanjiang 524000China

Dear Editor,oll-like receptor 4(TLR4)is a key receptor sensing bacterial lipopolysaccharide(LPS),and is the most investigated member of the Tol-like receptor family(Kawai and Akira,2007;Kayagaki et al,2013;Klein et al.,2015).Cell surface TLR4 expression is determined by the balance between receptor trafficking from the Golgi apparatus to the cell membrane,and internalization of the cell surface receptor into endosomal compartments(Saltoh,2009).In bone mar-row-derived macrophages(BMDM),we observed LPS-in-duced EGFR phosphorylation on the surface of BMDM,and this was inhibited by pretreatment with PD168393 or TAPI-1(Fig.S1).Next,we measured dynamic changes in cell sur-face TLR4 expression after LPS ***6,12,and 24 h after LPS treatment,TLR4 expression on the surface of BMDM was increased^2-,~6-,and^9-fold,respectively,as compared with controls.

关键词： PD1 TLR4 inhibited

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