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1 : : CRE/loxP 35S ARABIDOPSIS THALIANA,.,,, Cre/loxP, Arabidopsis thaliana.,. : Cre/loxP,,,..,,,.,,., [3, 7]. nptii,, [5].

2 (, ) 50 [15]...,,. -..., [6, 14]. Cre/loxP 1. Cre. lox (locus of crossing-over) Cre. E.coli 1 lox [10].,, Cre/loxP 35S (CaMV).,. Arabidopsis thaliana - Cre/loxP.

3 . A. thaliana Cre/loxP,, pore-lox1hgc pore-lox2hgc.., cre, gus, nptii, loxp, (nos). gus nptii. hptii. Agrobacterium tumefaciens GV3101 [13]. A. tumefaciens [17] (100 ) (180 ) M, 5%-, MES ( Sigma, ) ( Sigma, ) ,8. A. thaliana Columbia. 4 0,. [2]

4 . 1 3:1 4 [12] (100 ).,. A. thaliana GUS ,2, 7,0, 10 TA, 20%, 0,01% Triton X-100, 2% O 0,1% (X-Gluc) [8]. 70%-. [4]. (200 Tris-HCl, ph 7,5, 250 NaCl, 25 E TA 0,5% ). 70% ,8%- (5 ). 2, 10 ( 0,5 ), 250, 250 MgCl 2, 0,3 Taq- («Sigma», ) («Sigma», ) 25. : hptiif2 ( 3 hptii) 5 -CACAGTTCTCGTCCACAGTTCG-3 35StermRevAvrII (, 3 35S ) 5 -aaacctagggatctggattttagtactgg-3.

5 300.. Cre loxp-, : pri-vecprobe1 (, pore) 5 -CACTCGATACAGGCAGCCCA-3 pri-vecprobe2 5 - GAATCTTGCCCTGCACGAATACC : ; 30 ( , , ), %-.. CRE/loxP 35S (. 1)., pore-lox1hgc pore-lox2hgc -,.. 1. pore-lox1hgc pore-lox2hgc. : 35S-, hptii, nos-

6 , GUS, re, oriv, nptii, ColEI, E. coli. 35S [18]. - Cre/loxP,., Cre/loxP, [10], HSP81-1 [11].,. 35S. 35S nos-., Kim et al. [9] Cre/loxP 35S nos-. gus lox.,,., gus.,,.. -,,.

7 . hptii... GUS- (. 2)., 35S.,, gus cre. pore-lox1hgc GUS- 78%. pore-lox2hgc GUS 85%. - Cre/loxP 35S )., Chong-Pérez et al. [1],, Cre/loxP Gmhsp17.6-L HSP18.2.,,. loxp 59,7% 40%. Zuo et al. [16] Cre/loxP XVE.

8 ,,. 66%. ) ). 2. gus A. thaliana: - GUS- ; - GUS-.. 35S hptii, loxp nptii pore-lox1hgc, loxp, 80%., pore-lox2hgc,, 87%., pore-lox1hgc,, 10%, pore-lox2hgc - 12% (. 3). GUS- (. 4).

9 1 2 1,8.. 0, Cre ( 0,8%- ), pore-lox2hgc: 1-5,, «6» -, 2. 1 ( 35S nptii), 0,3., 2, loxp ( nptii ), 1,8. (, loxp ) GUS- pore-lox1hgc GUS- pore-lox2hgc pore-lox1hgc pore-lox2hgc.

10 , gus loxp Cre ,, , loxp, Cre.,. 4.,. Cre/loxP.,. 1. Chong-Perez B. Heat shock induced excision of selectable marker genes in transgenic banana by the Cre-lox site-specific recombination system./b. Chong- Perez, R.G. Kosky, M. Reyes, [et. al.] // J Biotechnol Vol.159, No.4. P

11 2. Clough J. S. Floral dip: simplified method for agrobacterium-mediated transformation of Arabidopsis thaliana / J.S. Clough, F.A. Bent // Plant J Vol. 16, No. 6. P Darbani B. Methods to produce marker-free transgenic plants./ B. Darbani, A. Eimanifar, Jr. C.N. Stewart // Biotechnol. J Vol. 2. P Dellaporta S. L. A plant DNA minipreparation: version II./ S.L. Dellaporta, J.Wood, J.B. Hicks // Plant Mol. Biol. Rep Vol. 1. P Goodin J. Transgenic plants: methods and protocols. /J. Goodwin, G. Pastori, M. Davey, H. Jones // Methods Mol. Biol Vol P Grindley N.D. Mechanisms of site specific recombination. / N.D. Grindley, K.L. Whiteson, P.A. Rice // Annu Rev. Biochem Vol.75. P Herrera-Estella L. Chimeric genes as dominant selectable markers in plant cells. /L. Herrera-Estrella, M. De Block, E. Messens [et al.] // EMBO J Vol. 2. P Jefferson R.A. Assaying chimeric genes in plants: the GUS gene fusion system./ R. A. Jefferson // Plant Mol. Biol. Rep Vol. 5. P Kim H.-B. Development of a simple and efficient system for excision selectable markers in Arabidopsis using a minimal promoter::cre fusion construct./h.-b. Kim, J.-I. Cho, N. Ryoo,[ et al.] // Mol Cells Vol. 33, No.1. P Kopertekh L., Cre-mediated seed-specific transgene excision in tobacco./ L. Kopertekh, K. Schulze, A. Frolov, [et al.] // Plant Mol. Biol Vol.72. P Liu H.K. Heat shock-regulated site-specific excision of extraneous DNA in transgenic plants./h.k. Liu, C. Yang, Z.W. Wei // Plant Sci Vol.168. P Murashige T., Skoog F. A revised medium for rapid growth and bio assays with tobacco tissue cultures./ T.Murashige, F. Skoog // Phys Pla Vol.15, N3. P Sambrook J: Molecular cloning: a laboratory manual. / J. Sambrook // Cold Spring Harbor, N.Y.: - Cold Spring Harbor Laboratory pp 2100.

12 14. Wang Y. Recombinase technology: applications and possibilities/ Y. Wang, Y.- Y. Yau, D. Perkins-Balding, J.G. Thompson // Plant Cel Rep Vol.30. P Yemets A.I. Modified tubulin genes as selectable markers for plant transformation Biotechnology [Eds. Blume Ya.B., Baird W.V., Yemets A.I., Breviario D.] // The Plant Cytoskeleton: Key Tool for Agro P Zuo J. Chemical-regulated, site-specific DNA excision in transgenic plants./ J., Zuo, Q.W. Niu, S.G.Møller, N.H Chua. // Nat Biotechnol Vol.19, No.2. P /.,.,...:, Arabidopsis thaliana,, Cre/loxP 35S /.,. // Development of DNA-Constructions with Site-Specific Recombinase System Cre/loxP Under the Control of a 35S Promoter for Transformation of Arabidopsis Thaliana to Produce Marker-Free Plants A.S. Sekan, S.V. Isaenkov The results of the development the vector DNA-constructions with site-specific recombinase system Cre/loxP for agrobacterium transformation of Arabidopsis thaliana plants. It is showed the efficiency of using this approach for obtaining marker-free transformated plants. Key words: site-specific recombinase system Cre/loxP, genetic transformation, molecular genetic analysis, expression of the foreign genes.

13 Cre/loxP 35S, Arabidopsis thaliana.,., Cre/loxP Arabidopsis thaliana.,. : Cre/loxP,,,.

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