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배추 유전자 발현이 유채 기관크기에 미치는 영향

홍준기, 서은정, 이승범, 윤혜진, 이연희*

Effects of Overexpression of Brassica rapa GROWTH-REGULATING FACTOR Genes on B. napus Organ Size

Korean Journal of Breeding Science 2018;50(4):378-386.
Published online: December 1, 2018

농촌진흥청 국립농업과학원 농업생명자원부

Agricultural Biotechnology Department, National Institute of Agricultural Sciences, Rural Development Administration, 370 Nongsaengmyeong-ro, Jeonju-si, Jeollabuk-do, 54874, Repubic of Korea

* (E-mail: yhl2222@korea.kr, Tel: +82-63-238-4690, Fax: +82-63-238-4654)
• Received: July 31, 2018   • Revised: August 6, 2018   • Accepted: August 24, 2018

Copyright: © 2018 by the Korean Society of Breeding Science

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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  • MicroRNA miR396, GRF transcription factors and GIF co-regulators: a conserved plant growth regulatory module with potential for breeding and biotechnology
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    Current Opinion in Plant Biology.2020; 53: 31.     CrossRef
  • Functional Screening of Salt Stress Tolerance Genes Using Transgenic Arabidopsis thaliana Lines Overexpressing Brassica rapa Full-length Genes and Brassica napus Transformation
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    Korean Journal of Breeding Science.2020; 52(4): 297.     CrossRef
  • Biological roles and an evolutionary sketch of the GRF-GIF transcriptional complex in plants
    Jeong Hoe Kim
    BMB Reports.2019; 52(4): 227.     CrossRef

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Effects of Overexpression of Brassica rapa GROWTH-REGULATING FACTOR Genes on B. napus Organ Size
Korean. J. Breed. Sci.. 2018;50(4):378-386.   Published online December 1, 2018
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Effects of Overexpression of Brassica rapa GROWTH-REGULATING FACTOR Genes on B. napus Organ Size
Korean. J. Breed. Sci.. 2018;50(4):378-386.   Published online December 1, 2018
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Effects of Overexpression of Brassica rapa GROWTH-REGULATING FACTOR Genes on B. napus Organ Size
Image Image Image Image Image Image
Fig. 1 Construction of expression vectors and expression patterns of BrGRFs in transgenic B.napus plants. (A) Structure of the 35S-Pro::BrGRF constructs. The HygR gene under the control of the CaMV 35S promoter (35S-Pro) serves as a selectable marker for B. napus transformants. BrGRFs are regulated by 35S-Pro. LB and RB indicate left and right borders of T-DNA, respectively. (B) Semi-quantitative RT-PCR for determination of BrGRF expression in transgenic plants. The expression level of Actin was used as a quantitative control. Lanes: Wt, untransformed wild-type plants; the numbers above indicate line numbers of BrGRF overexpressors. (C) Relative expression level of transgenes. Error bars represent the standard error (SE). Wt, untransformed wild-type plants; the numbers at X axes indicate line numbers of BrGRF-OX.
Fig. 2 Phenotypes of BrGRF-OX plants. (A) Cotyledon at 10 days. Bar, 1 cm. (B) and (C) Leaf size and morphology at 5 and 7 week, respectively. Bar, 1 cm. (D) Comparison of soil-grown plants at the same age. Bar, 1 cm. (E) Phenotypic characters of seeds. Bar, 1 mm. Wt, untransformed wild-type plants; the numbers indicate line numbers of BrGRF-OX.
Fig. 3 Quantification of dimensional parameters of BrGRF-OX organs. (A) Cotyledons at 10 days. (B) The 1st and 3rd leaves at 3 and 5 week, respectively. (C) Phenotypic characters of seeds. Wt, untransformed wild-type plants; the numbers at X axes indicate line numbers of BrGRF-OX. Error bars represent the standard error (SE).
Fig. 4 Microscopic views of adaxial palisade cells in cotyledons and leaves of BrGRF-OX. Wt, untransformed wild-type plants; the numbers indicate line numbers of BrGRF-OX. Bar, 10 μm.
Fig. 5 Numbers and sizes of adaxial palisade cells in cotyledons and leaves. (A) Cotyledons at 10 days. (B) and (C) The 1st and 3rd leaves at 3 and 5 week, respectively. Error bars represent the standard error (SE). Wt, untransformed wild-type plants; the numbers at X axes indicate line numbers of BrGRF-OX.
Fig. 6 Expression patterns of GA-, auxin-, and cell division-related genes. (A) Semi-quantitative RT-PCR for determination of BrGRF expression in transgenic plant leaves. The expression level of Actin was used as a quantitative control. Lanes: Wt, untransformed wild-type plants; the numbers above indicate line numbers of BrGRF overexpressors. (B) Relative expression level. Error bars represent the standard error (SE). Wt, untransformed wild-type plants; the numbers at X axes indicate line numbers of BrGRF-OX. AXR1, AUXIN RESISTANT 1; B2;1, CYCLIN-B2-1; DA1, Protein DA1; DWF4, DWARF 4; MYB65, MYB DOMAIN PROTEIN 65; IAA3 and 17, INDOLE-3-ACETIC ACID INDUCIBLE 3 and 17; IAMT1, IAA CARBOXYLMETHYLTRANSFERASE 1; PVP1, PYROPHOSPAHTE-ENERGIZED VACUOLAR MEMBRANE PROTON PUMP 1; SUR 2, SUPERROOT 2.
Effects of Overexpression of Brassica rapa GROWTH-REGULATING FACTOR Genes on B. napus Organ Size

Oligonucleotide primers used in RT-PCR.

Target Acc. No. Primer sequences Expected size (bp)
BrGRF3-1 Bra023066 5’-ATGGATTTGCAACTGAAACAATGGAGGAG-3’ 1107
5’-TCAATGAAAGGCTTGCGTTGAAACACCGA-3’
BrGRF9 Bra039334 5’-ATGGAAGAAAAGAAACACAGTTTACAAAG-3’ 1317
5’-TTAAACACCTGAAGAACACAATGACAAGA-3’
Bn-MYM65 XM_022719798 5’-ATGAGTTACACGGCTGAGAGTGATG-3’ 867
5’-AATCATCACATCAGATGGATGTTGG-3’
Bn-IAMT1 XM_013870746 5’-ATGGGTTCCAAGGGAGACAACGTTG-3’ 923
5’-ACAAGCTTCTCAATGGTGAAGGAGC-3’
Bn-SUR2 NM_001316270 5’-TGACAATCTCACTGGTCTTAGTGCG-3’ 816
5’-TGCGTCCTTGGTGCAAGGACGAGGTG-3’
Bn-IAA3 XM_013846673 5’-ATGGATGAGTTTGTTAACCTCAAGG-3’ 555
5’-TCATACACCAGAGCCTAAACACCTGG-3’
Bn-IAA6 XM_013845663 5’-ATGGCAAAGGAGGGTTTAGGACTTG-3’ 564
5’-ATCTGATCTCTTCACGATCCTCAGC-3’
Bn-IAA17 XM_013809370 5’-ATGATGGGCACTGTCGAGCTGAATC-3’ 687
5’-ACGTCGCCGACGAGCATCCAGTCACC-3’
Bn-AXR XM_022691599 5’-AGCACACCGTAATTGACTCGAAGCC-3’ 947
5’-AGCAACCACATGAAGCTCTGAGGCAC-3’
Bn-CYCB2;1 XM_013868490 5’-ATGGCGACGAGAACCAACATGCCTG-3’ 908
5’-ACAGTCAAGTACCACTCGAGGTTCC-3’
Bn-DA1 XM_013786453 5’-TCTCTGAGTACGAGTTCTCAACGTC-3’ 660
5’-TCCACGCGTGCATCATCTCATGAGC-3’
Bn-DWF4 XM_022718959 5’-AACCAACGATTGTATCAGCTGATGC-3’ 787
5’-ATCGCGATCTCAAGATGCTCTTCCC-3’
Bn-EXOR XM_013856760 5’-ACCAACCATCTGTGGCCACGTGGTG-3’ 681
5’-ACGTTGTAGGATCATACAACGCAGG-3’
Bn-PVP1 XM_013786026 5’-TGGTTCATCGTCTCTCGAGTTAGAG-3’ 846
5’-AAGTGCAGCACACGATGCTTCAGCG-3’
Bactin 5’-TGGCATCACACTTTTCTACAA-3’ 516
5’-CAACGGAATCTCTCAGCTCC-3’
Table 1 Oligonucleotide primers used in RT-PCR.