How are the repetitive circular DNA sequences present on chloroplasts created?

Yeungnam University
South Korea
DOI: 10.18258/28385
Raised of $12,000 Goal
Ended on 11/15/22
Campaign Ended
  • $91
  • 1%
  • Finished
    on 11/15/22

About This Project

The Inverted Sequence (IR) of some plants is one of well-known kind of special sequences. But, until now, the exact mechanism of how the IR sequence is made hasn't discovered yet. Most plants have an IR regions, but legumes do not have an IR regions, and among them, deciduous legumes have an IR zone. Thus, the purpose of our study is to elucidate the structure and mechanism of the IR region. Additionally, our team is going to figure out the relationship of it and plants' deciduousness.

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What is the context of this research?

According to numerous researchers, most of DNAs of chloroplasts in most of plant species have "ring" structure. More important thing is that is/are pair(s) of repetitive parts of specific structure within it, for some plant species. By additional researches, most of 'Fabaceae' plants were turned out not having those repetitive sequences (they are called "IR Sequences") in their cpDNAs(※ cpDNA is an abbreviation of 'chloroplast DNA', which refers to the DNA of the chloroplast itself.). But most important things for our research team are that current science haven't explained yet about by which mechanism IR sequences which biologic functions they have, or even whether they participate in any 'biologic function'.

What is the significance of this project?

The decisive mechanism of how IR sequence of plants made hasn't eludicated yet. Thus, our research team is going to figure out the mechanism. And furthermore, our main hypothesis is that symbiotic bacteria is related to this mechanism and IR sequence have connection with plants' deciduousness.

What are the goals of the project?

Our research team is going to figure out the "most accurate" mechanisms and causes of the formation of IR sequences in some plants, in 'general' ways. Plus, one of our hypotheses is that presence of IR sequence is related to the "Deciduousness" of plants, and we are going to take a deep look into it.

■ Deciduousness is the state or condition of being deciduous; the quality of trees which lose their leaves in winter or the dry season. For example, platanus trees lose their leaves when temperature go down.

■ ■The main idea of one of our hypotheses is that the presence of IR sequences inside of certain plants' chloroplast can make the leaves of the plant deciduous. And, we are going to find out relationship between the presence of IR sequence and the presence of symbiotic bacteria.


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Endorsed by

My name is Greg Baek of Inventech Lab, who partially guided and encouraged this student's research. This project has important contents that can effectively analyze the flow of the psychological state. Of course, more trials are needed, but I think it is an attempt to predict the psychological flow more accurately with the development of artificial intelligence. I believe that if we give this student more attention and help, we can complete the research of very innovative artificial intelligence. Dr. Greg Baek in Auckland NZ
Great that is wonderful idea. From the beginning of your plan, you established a plan to register research with the crowdfunding foundation (the national foundation did not provide research funding for research teams including undergraduate students) to receive support and conduct research. I want to promote your academic capacity for department to contribute human resource development and contribute to the host university and other students by sharing experiences, information and knowledge on life science.

Project Timeline

This is detailed timeline about our research. It'll be started within 2023 ~ 2025

Due to professor's current(2022) research and Jaehoon Jeong's personal military schedule(ps. In Korea, it's obligatory for all Korean men to go to national army.), it is not certainly set when to start between 2023~2025. But below is the most likely scenario of our research.

p.s. "The research will probably start in 2023, but if a more definite schedule is made, I will let you know by writing a lab note."

Oct 01, 2022

Project Launched

Nov 13, 2022

Start Project

Dec 29, 2026

Finish analyzing & start sequencing

Meet the Team

Jaehoon Jeong
Jaehoon Jeong
3rd year Undergraduate from Yeungnam University.


Dept. of Biology, Yeungnam University.
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Team Bio

from Yeungnam University, Plant Lab.

Jaehoon Jeong

3rd year undergraduate, Dept. of Biology, Yeungnam University.

My name is Jaehoon Jeong, a 3rd year | (*click the blue-colored bold text with contact information to send message or send online messages)

Main Interest : Molecular Biology, Quantum Physics, exploring new area of science for the first time, Ants, Microscope, Telescope, Black Hole, Dimension, Social Insectology, French culture&language, Discovering new things

Additional Information

[About the Project]

The l study is to elucidate the structure and mechanism of the IR region. Furthermore, we are going to find out relationship between presence of IR sequence in plants and their deciduous traits. whether the symbiotic bacteria associated with the plants.

[Introducing our target plant]

Senegalia senegal, which is called as "Arabian gum" is our target plant. It belongs). .

Senegalia senegal[1]

Senegalia senegal.[2]

[About our Institution]

* For more informations about our institutions, click logo below. *

Yeungnam University, South Korea.

Project Backers

  • 2Backers
  • 1%Funded
  • $91Total Donations
  • $45.50Average Donation
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