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가뭄저항성벼(Agb0103)의 분자생물학적 특성과 안전성 평가

Molecular Biological Characteristics and Biosafety Assessment for Drought-tolerant Transgenic Rice (Agb0103)

Korean Journal of Breeding Science 2014;46(4):389-399.
Published online: October 31, 2014

1 농촌진흥청 국립농업과학원

1 National Academy of Agricultural Science, Rural Development Administration, Jeonju, 560-500, Korea

2 경북대학교 응용생명과학부

2 School of Applied Biosciences, Kyungpook National University, Daegu, 702-701, Korea

*Corresponding Author : (thryu@korea.kr, Tel: +82-63-238 -4711, Fax: +82-63-238-4704)

The first two authors contributed equally to this work

• Received: October 14, 2014   • Revised: October 14, 2014   • Accepted: October 15, 2014

© Tshe Korean Society of Breeding Science All rights reserved

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Molecular Biological Characteristics and Biosafety Assessment for Drought-tolerant Transgenic Rice (Agb0103)
Korean. J. Breed. Sci.. 2014;46(4):389-399.   Published online December 31, 2014
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Korean. J. Breed. Sci.. 2014;46(4):389-399.   Published online December 31, 2014
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Molecular Biological Characteristics and Biosafety Assessment for Drought-tolerant Transgenic Rice (Agb0103)
Image Image Image Image Image
Fig. 1. T-DNA junction sequences analysis. (A) Schematic representation of the pSB11-RbMSR vector used for rice transformation. pSB11-RbMSR vector contained a recombinant gene, CaMsrB2. The remaining construct components had the same configuration, consisting of the rice Responsive to ABA protein 21 promoter (Rab21), the 3’region of the potato proteinase inhibitor II gene (PinII) and the Bar expression cassette containing a 35S promoter/Bar coding region/3’region from the nopaline synthase gene (NOS). (B) Insertional site of T-DNA on chromosome in Agb0103 (C: left border-1; D: left border-2) for the Drought-tolerant transgenic rice (Agb0103) line flanking region. The genomic DNA was digested with Hea III, ligated to genome walking adapter to create different libraries, and used as template for PCR. Capital letters represents the flanking genomic sequences and lower case letters show the inner part of each border of T-DNA.
Fig. 2. Genomic Southern blot analyses of Drought-tolerant transgenic rice (Agb0103). Genomic DNAs from leaf tissues were digested with Pme I/BamH I, BsrB I and hybridized with probe (A) Rab21, (B) CaMsrB2, (C) PinII, (D) 35S, (E) Bar, and (F) Nos. The DNA molecular size markers are indicated on the left. PC: binary vector carrying CaMsrb2 recombinant genes as positive controls, Ilmibyeo: non-transgenic wild type rice as negative controls.
Fig. 3. Backbone DNA PCR and Southern blot analyses of Drought-tolerant transgenic rice (Agb0103). (A) Schematic representation of the pSB11 vector used for PCR and Southern blot analyses. (B) Verification of Backbone DNA (pSB11) insert using PCR amplification of genomic DNA samples extracted from transgenic leaf tissues. (C) Genomic DNAs from leaf tissues were digested with Pme I/BamH I, and hybridized with probe aadA (SPM). (D) Genomic DNAs from leaf tissues were digested with Pme I/BamH I, and hybridized with probe pSB11 5101-6100. The DNA molecular size markers are indicated on the left. PC, PC means binary vector carrying CaMsrb2 recombinant genes as positive controls, respectively; Ilmibyeo, non-transgenic wild type (WT) rice as negative controls.
Fig. 4. 4. RT-PCR analyses of Drought-tolerant transgenic rice (Agb0103). Two pairs of primers were to detect transcripts expressed in CaMsrB2 and bar gene for CaMsrB2 transgenic rice T4~T6 generations. The DNA molecular size markers are indicated on the left. PC: binary vector carrying CaMsrb2 recombinant genes as positive controls, NC: non-transgenic wild type (Ilmibyeo) rice as negative control.
Fig. 5. Confirmation of bar gene expression for Drought-tolerant transgenic rice (Agb0103) by using immunostrip. (A) Seedling stage, (B) Tillering stage, (C) Heading stage, (D) Ripening stage; Generation (Agb0103 T4~T6), Tissue(roots, stems, leaves) type; Ilmibyeo, non-transgenic wild type rice as negative controls.
Molecular Biological Characteristics and Biosafety Assessment for Drought-tolerant Transgenic Rice (Agb0103)

Primers list used for the Drought-tolerant transgenic rice (Agb0103) Southern blot analysis.

Probe Primer Primer sequence Product Size (bp)
CaMsrB2 CaMsrB2 Forward 5'-TTGCGATGGCTACACCAGGCTC-3' 348
CaMsrB2 Reverse 5'-GGTTCGGGAACCCCTCACCCTT-3'
bar bar Forward 5'-CTGCACCATCGTCAACCACT-3' 505
bar Reverse 5'-GGAAATTCGGGGTCATCAGA-3'
Rab21 Rab21 Forward 5'-TCTCCCGCCGCGTGCAATAC-3' 391
Rab21 Reverse 5'-CTAGCGTGGTCGCCGGCATC-3'
Pin II Pin II Forward 5'-TGGGCATCAAAGTTGTGTGT-3' 593
Pin II Reverse 5'-TTGACAATCCATTCGTTTCT-3'
NOS NOS Forward 5'-ATTGAATCCTGTTGCCGGTC-3' 237
NOS Reverse 5'-AGCTTGATATCGAATTCCCG-3'
35S 35S Forward 5'-ACGCAGCAGGTCTCATCAAG-3' 554
35S Reverse 5'-ATCGCAATGATGGCATTTGT-3'

Primers used for the backbone DNA detection PCR analysis.

Probe Primer Primer sequence Product Size (bp)
pSB11 131-1300 131-1300 Forward 5'-ATTACTCCGGCGGCCTTAGA-3' 1,170
131-1300 Reverse 5'-TCGGATAGACCTGCCTGTGC-3'
pSB11(SPM) 1304-2092 1304-2092 Forward 5'-CTTCGCGCCGCACCTCAACTG-3' 789
1304-2092 Reverse 5'-GTAACGCGGGCCGAAACAAACC-3'
pSB11 2101-3400 2101-3400 Forward 5'-CTGCACCATCGTCAACCACT-3' 1,300
2101-3400 Reverse 5'-GGAAATTCGGGGTCATCAGA-3'
pSB11 3501-5100 3501-5100 Forward 5'-GGGACCCGTTGTATCTGGTT-3' 1,600
3501-5100 Reverse 5'-TCGGATGGGGTTTTATAGGG-3'
pSB11 5101-6100 5101-6100 Forward 5'-TGGGCATCAAAGTTGTGTGT-3' 1,000
5101-6100 Reverse 5'-TTGACAATCCATTCGTTTCT-3'
RAc1 RAc1 Forward 5’-ATCACTGCCTTGCTCCTAGC-3’ 350
RAc1 Reverse 5’-GTACTCAGCCTTGGCAATCC-3’

Junction sequence analysis of T-DNA for the Drought-tolerant transgenic rice (Agb0103) line flanking region.

Pedigree Chromosome Junction sequence Junction gene & sequence

Agb0103 8

2,470,655-2,470,960

2,471,052-2,471,327

Os08g0144000

2432861~2435744

Os08g0144100

2494083~2495012

PAT protein levels in Ilmibyeo and Drought-tolerant transgenic rice (Agb0103).

Sample PAT Concentration (μg/g)

Seedling stage Tillering stage Heading stage Ripening stage

Ilmibyeo 0 (N.D.) 0 (N.D.) 0 (N.D.) 0 (N.D.)
Agb0103 14.04 ± 2.11z 29.19 ± 3.95 34.68 ± 1.83 38.18 ± 9.71

zValues are the average ± SD of triplicate measures

Table 1. Primers list used for the Drought-tolerant transgenic rice (Agb0103) Southern blot analysis.
Table 2. Primers used for the backbone DNA detection PCR analysis.
Table 3. Junction sequence analysis of T-DNA for the Drought-tolerant transgenic rice (Agb0103) line flanking region.
Table 4. PAT protein levels in Ilmibyeo and Drought-tolerant transgenic rice (Agb0103).

Values are the average ± SD of triplicate measures