|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Distribution,Frequency and Variation of Stripe Rust Resistance Loci Yr10,Lr34/Yr18 and Yr36 in Chinese Wheat Cultivars显示文摘Wheat stripe rust is a devastating disease in many regions of the world.In wheat,49 resistance genes for stripe rust have been officially documented,but only three genes are cloned,including the race-specific resistance Yr10 candidate gene(Yr10_(CG)) and slow-rusting genes Lr34/Yr18(hereafter designated as Yr18) and Yr36.In this study,we developed gene-specific markers for these genes and used them to screen a collection of 659 wheat accessions,including 485 Chinese cultivars.Thirteen percent and eleven percent of the tested Chinese cultivars were positive for the markers for Yr10_(CG) and Yr18_(RH)(the resistant haplotype of Yr18),respectively,but none were positive for the Yr36 marker.Since there is a limited use of the Yr10 gene in Chinese wheat,the relatively high frequency of wheat varieties with the Yr10_(CG) marker suggests that the identity of the Yr10 gene is unknown.With regards to the Yr18 gene,29%of the tested cultivars that are used in the Middle and Lower Yangtze Valleys' winter wheat zone were positive for Yr18_(RH) markers.A non-functional allele of Yr18_(RH) was identified in 'Mingxian 169',a commonly used susceptible check for studying stripe rust.The data presented here will provide useful information for marker-assisted selection for wheat stripe rust resistance. | Cuiling Yuan Hui Jiang Honggang Wang Kun Li Heng Tang Xianbin Li Daolin Fu | 2012 | Journal of Genetics and Genomics2012，39，11： | 12 |
| 2 | Advances in preimplantation genetic diagnosis/screening显示文摘Preimplantation genetic diagnosis(PGD)gives couples who have a high risk of transmitting genetic disorders to their baby the chance to have a healthy offspring through embryo genetic analysis and selection.Preimplantation genetic screening(PGS)is an effective method to select euploid embryos that may prevent repeated implantation failure or miscarriage.However,how and to whom PGS should be provided is a controversial topic.The first successful case of PGD of a human being was reported in 1990,and there have been tremendous improvements in this technology since then.Both embryo biopsy and genetic technologies have been improved dramatically,which increase the accuracy and expand the indications of PGD/PGS. | YAN LiYing WEI Yuan HUANG Jin ZHU XiaoHui SHI XiaoDan XIA Xi YAN Jie LU CuiLing LIAN Ying LI Rong LIU Ping QIAO Jie | 2014 | Science China(Life Sciences)2014，57，7： | 3 |
| 3 | Mapping the glaucousness suppressor Iw1 from wild emmer wheat “PI 481521”显示文摘Many species of Triticeae display a glaucous phenotype. In wheat, glaucousness/waxiness on spikes, leaves and shoots is controlled by wax production genes(W loci) and epistatic inhibitors(Iw loci). In this study, a suppressor of glaucousness from wild emmer wheat(Triticum turgidum ssp. dicoccoides) accession 'PI 481521' was investigated in a pair of durum(T. turgidum ssp. durum cv. 'Langdon', LDN)—wild emmer wheat chromosome substitution lines, LDN and 'LDNDIC521-2B'. Genetic analysis revealed that the non-glaucous phenotype of LDNDIC521-2Bwas controlled by the dominant glaucous suppressor Iw1 on the short arm of chromosome 2B. In total, 371 2B-specific marker differences were identified between LDN and LDNDIC521-2B. The location of the Iw1 gene was mapped using an F2 population that stemmed from LDN and LDNDIC521-2B, generating a partial linkage map that included 19 simple sequence repeats(SSR) and ten gene-based markers. On the current map, the Iw1 gene was located within the Xgwm614–BE498111 interval, and cosegregated with BQ788707,CD893659, CD927782, CD938589, and Xbarc35. Mapping of Iw1 in LDNDIC521-2B, a publically accessible and widely distributed line, will provide valuable information for marker-assisted selection of the agronomically important trait of glaucousness. | Zongchang Xu Cuiling Yuan Jirui Wang Daolin Fu Jiajie Wu | 2015 | The Crop Journal2015，3，1： | 0 |
| 4 | The Physiological and Molecular Responses of Exogenous Selenium to Selenium Content and Fruit Quality in Walnut显示文摘To study the effect of exogenous selenium on fruit quality in walnut(Juglans regia L.),8-year-old walnut(Qingxiang)was taken as the research object.In the fruit expansion stage,300 mg/L of sodium selenate,yeast selenium and sodium selenite solutions were applied on the leaf of walnut,and the selenium levels in leaves,pericarp and kernel were determined at the ripening stage.The fruit quality,mineral nutrient content,antioxidant enzyme activity,and related genes’expression were analyzed.The results showed that the three exogenous selenium increased the selenium levels in leaves,pericarp and kernel of walnut.They also significantly increased fruit and kernel weights,and kernel linoleic acid,but markedly decreased kernel crude fat and saturated fatty acid.Selenium spraying promoted the absorption of mineral nutrients such as potassium and zinc,but inhibited the absorption of calcium,and had no significant effect on iron and magnesium in the kernel.Three exogenous selenium increased the activities of superoxide dismutase(SOD),peroxidase(POD),ascorbate peroxidase(APX),and catalase(CAT)significantly in the kernel.Except for sodium selenate treatment significantly reduced malondialdehyde(MDA)content in the kernel,the other two selenium sources treatments had no significant effect on MDA and hydrogen peroxide(H2O2)levels.They also increased the expression of JrCu/Zn-SOD,Jr2-Cys POD,JrCyt-APX and JrCAT in kernel,to different extents.These implies that,in the walnut fruit enlargement period,the foliar spraying selenium could increase the selenium content of walnut,affect the mineral nutrient absorption,improve the antioxidant capacity and related genes’expression,and reduce the degree of peroxide,and then improve the quality of fruit.Furthermore,yeast selenium showed the comprehensive effect of the best. | Mufang Sun Xinran Hui Cuiling Tong Longyi Yuan Dejian Zhang | 2023 | Phyton-International Journal of Experimental Botany2023，92，3： | 0 |
| 5 | Cloning and functional analysis of the promoter of allergen gene Ara h 1 from peanut显示文摘Peanut seeds are ideal bioreactors for the production of foreign recombinant proteins or secondary metabolites.Seed-specific promoters(SSPs)can direct the expression of genes specifically in seeds to avoid undesirable effects associated with constitutive expression.However,few SSPs have been identified in peanut.Previous studies have shown that some allergen-encoding genes encode seed storage proteins or exhibit seed-specific/preferential expression.In this study,we characterized allergen-encoding genes from across the genomes of Arachis species to explore seed-specific genes.We found that at least 9 out of 16 identified peanut allergen-encoding genes were expressed specifically in the seeds or were preferentially expressed.A 1493-bp promoter fragment of allergen gene Ara h 1(we named it AHSSP6)was isolated from cultivated peanut genome.cis-element analysis showed that three RY repeat elements which usually exsisted in seed or embryo specific promoter sequence were also present in AHSSP6 sequence.Histochemical analysis showed AHSSP6 could drive the expression of aβ-glucuronidase(GUS)reporter gene specifically in the seeds or cotyledon tissue of transgenic Arabidopsis,while not in other tissues.These findings indicated that these promoters of allergen genes were candidate SSPs,and AHSSP6 was a novel SSP which could be potentially utilized in peanut improvement. | Cuiling Yuan Chunjuan Li Caixia Yan Xiaobo Zhao Juan Wang Yifei Mou Zhiwei Wang Quanxi Sun Shihua Shan | 2022 | Oil Crop Science2022，7，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员