Elevation of transgene expression level by flanking matrix attachment regions (MAR) is promoter dependent: a study of the interactions of six promoters with the RB7 3' MAR.

abstract：:To identify ways to improve the efficiency of generating chimeric mice via microinjection of blastocysts with ES cells, we compared production and performance of ES-cell derived chimeric mice using blastocysts from two closely related and commonly used sub-strains of C57BL/6. Chimeras were produced by injection of the...

journal_title：Transgenic research

authors： Fielder TJ,Yi CS,Masumi J,Waymire KG,Chen HW,Wang S,Shi KX,Wallace DC,MacGregor GR

更新日期：2012-12-01 00:00:00

abstract：:Pierce's disease (PD) caused by Xylella fastidiosa prevents cultivation of grapevine (Vitis vinifera) and susceptible hybrids in the southeastern United States and poses a major threat to the grape industry of California and Texas. Genetic resistance is the only proven control of X. fastidiosa. Genetic engineering off...

journal_title：Transgenic research

authors： Li ZT,Hopkins DL,Gray DJ

更新日期：2015-10-01 00:00:00

abstract：:Polyamines, spermidine, spermine and their precursor putrescine, are ubiquitous cell components essential for normal cell growth. Increased polyamine levels and enhanced biosynthesis have been associated with malignant transformation and tumor formation, and thus, the polyamines have been considered to be a meaningful...

journal_title：Transgenic research

authors： Pietilä M,Dhungana H,Uimari A,Sironen R,Alhonen L

更新日期：2014-02-01 00:00:00

abstract：:The FK506-binding proteins (FKBPs) belong to the peptidyl prolyl cis-trans isomerase (PPIase) family, and catalyse the rotation of the peptide bond preceding a proline. They are conserved in organisms from bacteria to man. In order to understand the function of plant FKBP isoforms, we have produced transgenic wheat pl...

journal_title：Transgenic research

authors： Kurek I,Stöger E,Dulberger R,Christou P,Breiman A

更新日期：2002-08-01 00:00:00

abstract：:Hematopoietic stem cells (HSC) are found in several independent sites embryonically. Loss-of-function studies indicated that Notch1, but not Notch2 signaling was required for HSC emergence from the aortic-gonado-mesonephros (AGM) region. We previously showed that constitutive Notch1 activation impaired primitive eryth...

journal_title：Transgenic research

authors： Tang Y,Bai H,Urs S,Wang Z,Liaw L

更新日期：2013-04-01 00:00:00

abstract：:We report here knock-in of diphteria toxin A chain (dta) gene at the Ins2 locus, using the strategy previously employed to insert lacZ under control of the Ins2 promoter. Mutant Ins2(dta/+), Ins2(dta/lacZ) or Ins2(lacZ/+) mouse pups were generated by breeding and analyzed to study the effects of toxigenetic beta-cell ...

journal_title：Transgenic research

authors： Lamotte L,Jackerott M,Bucchini D,Jami J,Joshi RL,Deltour L

更新日期：2004-10-01 00:00:00

abstract：:Two commonly used promoters to ubiquitously express transgenes in zebrafish are the Xenopus laevis elongation factor 1 alpha promoter (XlEef1a1) and the zebrafish histone variant H2A.F/Z (h2afv) promoter. Recently, transgenes utilizing these promoters were shown to be silenced in certain adult tissues, particularly th...

journal_title：Transgenic research

authors： Burket CT,Montgomery JE,Thummel R,Kassen SC,LaFave MC,Langenau DM,Zon LI,Hyde DR

更新日期：2008-04-01 00:00:00

abstract：:Vitamin E (tocopherol) is a powerful antioxidant essential for human health and synthesized only by photosynthetic organisms. The effects of over-expression of tocopherol biosynthetic enzymes have been studied in leaves and seeds, but not in a non-photosynthetic, below-ground plant organ. Genetic and molecular approac...

journal_title：Transgenic research

authors： Crowell EF,McGrath JM,Douches DS

更新日期：2008-04-01 00:00:00

abstract：:Gene amplification is widely used for the production of pharmaceuticals and therapeutics in situations where a mammalian system is essential to synthesise a fully active product. Current gene amplification systems require multiple rounds of selection, often with high concentrations of toxic chemicals, to achieve the h...

journal_title：Transgenic research

authors： Melton DW,Ketchen AM,Kind AJ,McEwan C,Paisley D,Selfridge J

更新日期：2001-04-01 00:00:00

abstract：:Alpha1 tubulin gene expression is induced in the developing and regenerating CNS of vertebrates. Therefore, alpha1 tubulin gene expression may serve as a good probe for mechanisms underlying CNS development and regeneration. One approach to identify these mechanisms is to work backwards from the genome. This requires ...

journal_title：Transgenic research

authors： Goldman D,Hankin M,Li Z,Dai X,Ding J

更新日期：2001-01-01 00:00:00

abstract：:Use of huge amounts of antibiotics in farm animal production has promoted the prevalence of antibiotic-resistant bacteria, which poses a serious threat to public health. Therefore, alternative approaches are needed to reduce or replace antibiotic usage in the food animal industry. PR-39 is a pig-derived proline-rich a...

journal_title：Transgenic research

authors： Zeng F,Dong R,Zhao C,Liu D,Zheng E,Song C,Wu Z,Li Z

更新日期：2018-10-01 00:00:00

abstract：:Tritrophic interactions between transgenic potato expressing the insecticidal lectin from snowdrop (Galanthus nivalis agglutinin; GNA), an aphid pest, Myzus persicae (Sulz.), and a beneficial predator, the 2-spot ladybird (Adalia bipunctata L.) were investigated. Clonal plants expressing GNA at 0.1-0.2% total soluble ...

journal_title：Transgenic research

authors： Down RE,Ford L,Woodhouse SD,Davison GM,Majerus ME,Gatehouse JA,Gatehouse AM

更新日期：2003-04-01 00:00:00

abstract：:In this study the effects of gene targeting procedures on the early behaviour and morphological development of the resulting offspring have been investigated. Six groups of mice, each having undergone a specific aspect of the biotechnological procedure, (including electroporation, microinjection and/or embryo culture)...

journal_title：Transgenic research

authors： van der Meer M,Baumans V,Hofhuis FM,Olivier B,van Zutphen BF

更新日期：2001-10-01 00:00:00

abstract：:Japanese morning glory, Ipomoea nil, exhibits a variety of flower colours, except yellow, reflecting the accumulation of only trace amounts of carotenoids in the petals. In a previous study, we attributed this effect to the low expression levels of carotenogenic genes in the petals, but there may be other contributing...

journal_title：Transgenic research

authors： Watanabe K,Oda-Yamamizo C,Sage-Ono K,Ohmiya A,Ono M

更新日期：2018-02-01 00:00:00

abstract：:The germline transmission (g.l.t.) of gene trap or gene targeted mutations by ES-cell-derived chimaeric mice is a crucial step in the generation of stable transgenic lines. The wild-type ES cell lines CJ7, D3 and R1 of different passage numbers and their transfected clone-descendants generated in gene targeting or gen...

journal_title：Transgenic research

authors： Fedorov LM,Haegel-Kronenberger H,Hirchenhain J

更新日期：1997-05-01 00:00:00

abstract：:Genomic DNA blot hybridization is traditionally used to demonstrate that, via genetic transformation, foreign genes are integrated into host genomes. However, in large genome species, such as Allium cepa L., the use of genomic DNA blot hybridization is pushed towards its limits, because a considerable quantity of DNA ...

journal_title：Transgenic research

authors： Zheng SJ,Henken B,Sofiari E,Jacobsen E,Krens FA,Kik C

更新日期：2001-06-01 00:00:00

abstract：:The mouse artificial chromosome (MAC) has several advantages as a gene delivery vector, including stable episomal maintenance of the exogenous genetic material and the ability to carry large and/or multiple gene inserts including their regulatory elements. Previously, a MAC containing multi-integration site (MI-MAC) w...

journal_title：Transgenic research

authors： Yoshimura Y,Nakamura K,Endo T,Kajitani N,Kazuki K,Kazuki Y,Kugoh H,Oshimura M,Ohbayashi T

更新日期：2015-08-01 00:00:00

abstract：:Phytocystatins are proteinaceous inhibitors of cysteine proteases. They have been implicated in the regulation of plant protein turnover and in defense against pathogens and insects. Here, we have characterized an Arabidopsis phytocystatin family gene, Arabidopsis thaliana phytocystatin 4 (AtCYS4). AtCYS4 was induced ...

journal_title：Transgenic research

authors： Je J,Song C,Hwang JE,Chung WS,Lim CO

更新日期：2014-02-01 00:00:00

abstract：:Standard methods to mark Xenopus laevis individuals like tattooing or clipping toenails are inappropriate for the fast growing and regenerating small froglets and the previously used transponders are too large. In this study we successfully adapted micro transponders to tag these animals. Using these new transponders ...

journal_title：Transgenic research

authors： Waldner C,Roose M,Ryffel GU

更新日期：2007-08-01 00:00:00

abstract：:Childhood-onset dermatitis is one of the most common skin disorders in children. Although various mouse models that mirror aspects of dermatitis have become available, there is still a need for an animal model that develops dermatitis in childhood and is more suitable for performing tissue transplantation experiments....

journal_title：Transgenic research

authors： Kaneko R,Sato A,Hamada S,Yagi T,Ohsawa I,Ohtsuki M,Kobayashi E,Hirabayashi M,Murakami T

更新日期：2016-08-01 00:00:00

abstract：:Studies on the effects of transgenes in soybean [Glycine max (L.) Merr.] and the associated use of specific herbicides on biological nitrogen fixation (BNF) are still few, although it is important to ensure minimal impacts on benefits provided by the root-nodule symbiosis. Cultivance CV127 transgenic soybean is a cult...

journal_title：Transgenic research

authors： Hungria M,Nakatani AS,Souza RA,Sei FB,de Oliveira Chueire LM,Arias CA

更新日期：2015-02-01 00:00:00

abstract：:Recently, site-specific recombination methods in plants have been developed to delete selection markers to produce marker-free transgenic plants or to integrate the transgene into a pre-determined genomic location to produce site-specific transgenic plants. However, these methods have been developed independently, and...

journal_title：Transgenic research

authors： Nanto K,Ebinuma H

更新日期：2008-06-01 00:00:00

abstract：:Conventional screening protocols for transgene integration in mice employ tail tips or blood samples as sources to obtain genomic DNA preparations. We have developed a simple alternative non-surgical method. Epithelial cells are scraped off the inner surface of the rectum with a sterile plastic inoculation loop and ar...

journal_title：Transgenic research

authors： Lahm H,Hoeflich A,Rieger N,Wanke R,Wolf E

更新日期：1998-03-01 00:00:00

abstract：:To feed an estimated world population of 8.9 billion by 2050, strategies for increasing grain production must be developed. Several agronomically important traits for increasing yield, such as plant height, grain number, and leaf erectness, have recently been characterized in rice (Oryza sativa L.). These traits are r...

journal_title：Transgenic research

authors： Sakamoto T

更新日期：2006-08-01 00:00:00

abstract：:Many of the toxin proteins, that have been heterogeneously expressed in agricultural crops to provide resistance to insect pests, are too specific or are only mildly effective against the major insect pests. Spider venoms are a complex cocktail of toxins that have evolved specifically to kill insects. Here we show tha...

journal_title：Transgenic research

authors： Khan SA,Zafar Y,Briddon RW,Malik KA,Mukhtar Z

更新日期：2006-06-01 00:00:00

abstract：:Although the crustacean Artemia has been commonly used as an experimental organism and served as a live bait feed for aquaculture, gene transfer system on Artemia sp. to generate stable lines is not well developed. In this study, we optimized a condition for cyst-eletroporation and generated stable lines of transgenic...

journal_title：Transgenic research

authors： Chang SH,Lee BC,Chen YD,Lee YC,Tsai HJ

更新日期：2011-10-01 00:00:00

abstract：:Based on the Cre/loxP system, we have developed a novel marker-free system mediating a direct auto-excision of loxP-flanked marker genes from T(1 )transgenic rice without any treatment or further offspring crossing. To achieve this, the floral-specific promoter OsMADS45 was isolated from rice and the expression patter...

journal_title：Transgenic research

authors： Bai X,Wang Q,Chu C

更新日期：2008-12-01 00:00:00

abstract：:Maize was genetically engineered for the biosynthesis of the high value carotenoid astaxanthin in the kernel endosperm. Introduction of a β-carotene hydroxylase and a β-carotene ketolase into a white maize genetic background extended the carotenoid pathway to astaxanthin. Simultaneously, phytoene synthase, the control...

journal_title：Transgenic research

authors： Farré G,Perez-Fons L,Decourcelle M,Breitenbach J,Hem S,Zhu C,Capell T,Christou P,Fraser PD,Sandmann G

更新日期：2016-08-01 00:00:00

abstract：:The MADS-box genes have been studied mainly in flower development by researching flower homeotic mutants. Most of the MADS-box genes isolated from plants are expressed exclusively in floral tissues, and some of their transcripts have been found in various vegetative tissues. The genes in the STMADS subfamily are impor...

journal_title：Transgenic research

authors： Shin MR,Seo SG,Kim JS,Joen SB,Kang SW,Lee GP,Kwon SY,Kim SH

更新日期：2011-04-01 00:00:00

abstract：:The isopentenyl transferase gene (ipt) from Agrobacterium tumefaciens was isolated and introduced, via a disarmed binary vector, into tobacco using the Agrobacterium tumefaciens-mediated gene transfer system. The expression of the ipt gene was monitored by RNA hybridization, western blotting and cytokinin analysis. Th...

journal_title：Transgenic research

authors： Zhang XD,Letham DS,Zhang R,Higgins TJ

更新日期：1996-01-01 00:00:00