/Abies_religiosa_vs_ozone

This repository contains all the scripts of my Master's Thesis project

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Abies_religiosa_vs_ozone

I am Veronica Reyes Galindo. This repository contains all the scripts of my Master's Thesis project at Instituto de Ecología, UNAM.

  • The online version of my Thesis is in UNAM website.

  • You can found "The paper" and other files about my project in my ResearchGate.

  • If you want to know more about the importance of the project to reforest the forest near to Mexico city, you can see a nice video and read a report in spanish by "Chilango" magazine.

And please send me a message in veronica.rg.pb@ gmail.com to clear all doubts about my Master's Thesis project.

Photo by me: My Supervisor PhD. Alicia Mastretta-Yanes in middle of the "sacred fir cementery" in Santa Rosa Xochiac, 2017.

🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲

The principal aim of my project was to : Assess if the tolerance of sacred fir (Abies religiosa) to exposure by O3, in a peripheral forest of the CDMX, is related to the genetic origin of the individuals or is given by differential expression of candidate genes.

To resolves my general aim, I have 3 particular aims. The analyzes to answer each aim can be found in separate directories with data and pictures:

  • Evaluate the differential expression of healthy and damaged trees in two periods of [O3] (TRANSCRIPTOMICS).

  • Identify origins of sacred fir with tolerance to O3 (GENOMICS).

  • Quantify the relative abundance of secondary metabolites in healthy y damaged trees in two periods of concentration of O3 (METABOLOMICS).

This is the Repository structure:

+----- Abies_religiosa_vs_ozone/
|	+--README.md
|	+--TRANSCRIPTOMICS/
|		+--bin/
|		+--data/
|		+--metadata/
|		+--outputs/
|		+--README_transcriptomics.md
|	+--GENOMICS/
|		+--bin/
|		+--data/
|		+--metadata/
|		+--outputs/
|		+--README_genomics.md
|	+--METABOLOMICS/
|		+--bin/
|		+--data/
|		+--metadata/
|		+--outputs/
|		+--README_metabolomics.md
|	+--INFO_PROJECT/
|		+--Transcriptomic_analysis_about tropospheric_ozone_tolerance_in_Abies_religiosa_TB.pdf
|		+--ABSTRACT-Transcriptomic_analysis_about_tropospheric_ozone_tolerance_in_Abies_religiosa.md
|		+--README_info_project.md
|	+--wonderful_images/
|		+--all_images_in _this_repository.png

In addition, you can find in this repository:

📄 /README.md

README: is a intro about my project. This include the structure of my repository.

📁 /1.-GENOMICS: It is a genomic analysis from samples product of a GBS sequencing, ipyRAD was used to assemble de novo, VCFTools and plink to make more specific filters. The relationship was calculated, multiple SNPs were discarded in the same loci, a Mantel test, PCA and admixture were performed and the Heterocity was calculated.

GENOMICS

📁 /2.-METABOLOMICS This is an analysis of metabolites measured with a gas chromatograph spectrum mass (GC-SM). Data from html files were loaded into tables that were subsequently calculated for their relative abundance. The values between samples were compared from a barplot, ANOVA and finally a PCA analysis was made with the final metabolites.

METABOLOMICS

📁 /3.-TRANSCRIPTOMICS This is a transcriptomic analysis from samples sequenced with RNAseq. Samples were cut(Timmomatic) and mapped (BWA) to a reference transcriptome. Sequence counting was carried out through command lines in Rstudio that subsequently allowed the evaluation of differential expression between samples. From the counting table, a volcanoplot was performed to exemplify the overexpressed and underexpressed genes.

TRANSCRIPTOMICS

📁 /4.-INFO_PROJECT: Here are exhibitions, summaries and analysis of the final data of this repository.

INFO_PROJECT

📁 /5.-wonderful_images: This directory stores images that help complement and exemplify my README files and my issues. NOTE: The product images of R scripts are in the corresponding "outputs" directory for each analysis (GENOMICS, METABOLOMICS and TRANSCRIPTOMICS).

wonderful_images

The principal analysis are:

GENOMICS

Identify origins of sacred fir with tolerance to O3.

Check more info about this pipeline in the README_genomics.

To see a short summary about the analysis of the final data you can go to Analysis_genomics

METABOLOMICS

Quantify the relative abundance of secondary metabolites in healthy y damaged trees in two periods of concentration of O3

Check more info about this pipeline in the README_metabolomics.

To see a short summary about the analysis of the final data you can go to Analysis_metabolomics

TRANSCRIPTOMICS (ALERT: I keep developing this section)

Evaluate the differential expression of healthy and damaged trees in two periods of [O3].

Check more info about this pipeline in the README_transcriptomics.

To see a short summary about the analysis of the final data you can go to Analysis_transcriptomics