Bulletin of Botanical Research ›› 2023, Vol. 43 ›› Issue (3): 412-420.doi: 10.7525/j.issn.1673-5102.2023.03.011
• Molecular biology • Previous Articles Next Articles
Danni LI1, Jiali LIU1, Jitao ZHANG2, Baoxiang GU1, Fengjin ZHU1, Qingjie GUAN1()
Received:
2022-08-21
Online:
2023-05-20
Published:
2023-05-11
Contact:
Qingjie GUAN
E-mail:guanqingjie@nefu.edu.cn
About author:
LI Danni(1999—),female,master,major in molecular biology research.
Supported by:
CLC Number:
Danni LI, Jiali LIU, Jitao ZHANG, Baoxiang GU, Fengjin ZHU, Qingjie GUAN. Cloning of WRKY40 Gene from Leymus chinensis and Analysis of Disease Resistance in Transgenic Tobacco[J]. Bulletin of Botanical Research, 2023, 43(3): 412-420.
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URL: https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2023.03.011
Table 1
Primer sequences of LcWRKY40
引物名称 Primer name | 引物序列(5′→3′) Primer Sequence(5′→3′) | 功能 Function |
---|---|---|
LcWRKY40-F1 | GCTTGGTGTTTGAGAGACGA | CDS序列扩增 CDS sequence amplification |
LcWRKY40-R1 | TGATGTGGCTGCTCCTGTG | |
LcActin1-F | CATGCTATCCCTCGTCTCGACCT | 内参基因 Internal reference gene |
LcActin1-R | CGCACTTCATGATGGAGTTGTAT | |
LcWRKY40-QF | TTGCCGTTCTTGAGTCGGAG | 实时荧光定量 Real-time fluorescence quantification |
LcWRKY40-QR | GCGAAGGAGCACCTGAAGTA | |
pBI121-GFP-LcW40-F | TCTAGAATGGATCCATGGGTCAGC | 重组载体引物 Recombinant vector primer |
pBI121-GFP-LcW40-R | GTCGACTATTGATGTCCCTGGTCGG | |
LcWRKY40-F2 | ATGGATCCATGGGTCAGCAG | 过表达植株分子鉴定 Molecular identification of overexpressed plants |
LcWRKY40-R2 | TTAATTGATGTCCCTGGTCG |
Fig.2
The bioinformatics analysis of LcWRKY40 geneA.WRKY transcription factor of different species homologous sequence alignment(The left black sequence is WRKY motif and the right C2H2 zinc finger protein conserved sequence);B.The phylogenetic tree of LcWRKY40 protein;C.The prediction of LcWRKY40 protein subcellular localization
Fig.5
Molecular identification and screening of Tobacco with LcWRKY40 overexpressionA.The Enzyme digestion identification pCXSN::LcWRKY40(M.DNA Marker;1.Enzyme digestion of pCXSN::LcWRKY40 recombinant vector);B.Screening of hygromycin resistance of transgenic tobacco seedlings with overexpression of LcWRKY40 gene(WT.Wild type;#1-#3.Three different transgenic lines of T0 generation);C.PCR identification of transgenic plants(M.DNA Marker;CK+ and CK-were positive control and negative control respectively;#1-#4.Four different transgenic lines of T0 generation)
Fig.7
The extraction of total RNA from Leymus chinensis leaves and cloning of LcWRKY40 geneA.Phenotypic difference of disease resistance between wild-type and transgenic tobacco;B.Difference in damage area between wild-type and transgenic tobacco inoculated with bacteria;***.There were significant differences between WT lines and T3 transgenic lines(P<0.001)
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