C. praecox CpUFO gene as well as coded protein and application thereof

A kind of wax plum and protein technology, which is applied in the fields of application, genetic engineering, plant genetic improvement, etc.

Active Publication Date: 2019-09-27
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ufo mutants do not affect leaf traits, in Arabidopsis, ectopic expression of UFO leads to serrated leaves in Arabidopsis

Method used

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  • C. praecox CpUFO gene as well as coded protein and application thereof
  • C. praecox CpUFO gene as well as coded protein and application thereof
  • C. praecox CpUFO gene as well as coded protein and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Cloning of embodiment 1 Wintersweet CpUFO gene

[0034] Design specific primers based on the obtained cDNA sequence. The upstream and downstream primers contain the complete ORF sequence. The primer sequences are as follows:

[0035] Table 1 CpUFO full-length PCR primers

[0036] Primer name Primer sequence (5'-3') CpUFO-F TTGGAGAAGAAGGAGAGACAAAACCC CpUFO-R GGCTTTCACAATCAACATACACACC

[0037] The first-strand cDNA synthesized by reverse transcription was used as a template, and PCR amplification was carried out with CpUFO-specific primers.

[0038] The results of PCR amplification of the open reading frame of the wax plum CpUFO gene were detected by electrophoresis, and the results showed that the target band was specific ( figure 1 ). The PCR product was cloned into the pMD19-T vector, transformed into Escherichia coli, detected with CpUFO-F (10 μM) and CpUFO-R (10 μM) specific primers, and the single clones detected by PCR as positive w...

Embodiment 2

[0045] Example 2 Analysis of the expression characteristics of Wintersweet CpUFO gene

[0046] The wintersweet material used in this experiment is Chimonanthus praecox. The stems, leaves, fruits, and flower organs used were all collected from adult wintersweet plants, which were planted on the campus of Southwest University, and the above wintersweet plants were routinely managed.

[0047] Design and synthesis of primers for real-time fluorescence quantitative PCR: Actin and Tublin genes of Chimera japonica were selected as dual internal reference genes for real-time fluorescence quantification of CpUFO gene of Chimera japonica, and primers specific for the internal reference gene and target gene CpUFO were designed using Primer Premier 5.0 software. It was then sent to Beijing Liuhe Huada Gene Technology Co., Ltd. for synthesis. The primer sequences are shown in Table 2. All primers in this study were designed by Primer Premier 5.0 software and synthesized by Beijing Liuhe H...

Embodiment 3

[0053] Example 3 Genetic Transformation and Functional Analysis of Wintersweet CpUFO Gene in Arabidopsis

[0054] Combining the restriction enzyme cutting sites and distribution characteristics contained in the CpUFO gene ORF box sequence itself and the characteristics of the multiple cloning sites contained in the plant overexpression vector pCAMBIA1300 used, the most suitable enzymes KpnI and SalI were selected and used on the original specific primers. Restriction sites and their corresponding protective bases are added downstream to amplify the coding region of the CpUFO gene carrying suitable restriction sites and clone it into the multiple cloning site of the plant expression vector. The primer names and sequences are as follows:

[0055] The underlined part is the protective base, and the square part is the Kpn I restriction site);

[0056] The underlined part is the protected base, and the boxed part is the Sal I restriction site).

[0057]Clone the open read...

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Abstract

The invention relates to the field of plant molecular biology, in particular to a C. praecox CpUFO gene as well as coded protein and an application thereof. A cDNA sequence of the C. praecox CpUFO is obtained by gene cloning, the whole length of the cDNA sequence of the gene is 1753 bp, and the gene contains 1212 bp complete ORF (open reading frame) and codes 403 amino acids. After the gene is transformed into arabidopsis thaliana, phenotype observation finds that the bud emergence time, tillering time, first flower blooming time and first pod emergence time of a transgenic line are earlier than a WT plant; the rosette leaf number and total leaf number are fewer than the WT plant, and the blooming time is early. Flower organ observation finds that arabidopsis thaliana pistils genetically modified with the CpUFO gene at the same blooming stage are longer than wild type arabidopsis thaliana, which indicates that the C. praecox CpUFO gene can promote plants to bloom and has influence on flower organs of plants.

Description

technical field [0001] The invention belongs to the field of plant molecular biology, and specifically relates to a wintersweet CpUFO gene, its encoded protein and application. Background technique [0002] Wintersweet (C. praecox (L.) Link), which belongs to the genus Chimonanthus Lindl. of the family Calycanthaceae, is a rare and precious fragrant and ornamental tree species unique to my country. Wintersweet is a rare plant that blooms in the true sense of the word and is fragrant and pleasant. Because the flowers bloom in the severe winter, it has been given the meaning of being proud of the frost and fighting the snow and facing difficulties by ancient and modern cultural people. It is a symbol of literati, The aesthetic taste of refined scholars and the representatives and symbols of many excellent virtues of the working people who are persevering and courageous, have been loved by the people of the country since ancient times. [0003] China is the main origin of Wint...

Claims

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Application Information

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IPC IPC(8): C07K14/415C12N15/29C12N15/82A01H5/00A01H6/20
CPCC07K14/415C12N15/827
Inventor 李志能李先源余尚妍眭顺照李名扬
Owner SOUTHWEST UNIVERSITY
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