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Transcriptome Landscape Variation in the Genus Thymus.

Aboozar Soorni1, Tahereh Borna2, Ali Alemardan2

  • 1Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran. soorni@cc.iut.ac.ir.

Genes
|August 21, 2019
PubMed
Summary
This summary is machine-generated.

This study analyzed the transcriptomes of five Thymus species to identify genes involved in medicinal compound biosynthesis. It reveals close genetic relationships and speciation events within the Thymus genus.

Keywords:
Thymusphylotranscriptometerpenoid biosynthesistranscriptome

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Area of Science:

  • * Plant genomics and molecular evolution.
  • * Phytochemistry and biosynthesis pathways.
  • * Medicinal plant research.

Background:

  • * The Lamiaceae family, particularly the Thymus genus, is recognized for its medicinal and aromatic properties.
  • * Previous research primarily focused on Thymus phylogeny, neglecting transcriptome evolution and gene discovery for terpenoid biosynthesis.
  • * Understanding the genetic basis of thymol and carvacrol production is crucial for optimizing medicinal applications.

Purpose of the Study:

  • * To generate and analyze transcriptomes of five Thymus species.
  • * To identify genes responsible for thymol and carvacrol biosynthesis.
  • * To elucidate the evolutionary relationships and speciation events within the Thymus genus.

Main Methods:

  • * High-throughput sequencing of five Thymus species transcriptomes (~43 million reads/sample).
  • * De novo transcriptome assembly and quality evaluation.
  • * Database mining (UniProt, KEGG, COG, TF) to identify putative genes.
  • * Phylogenetic analysis using 592 single-copy orthogroups.

Main Results:

  • * Identification of numerous genes associated with the terpenoid pathway in Thymus.
  • * Strong evidence for a close phylogenetic relationship between Thymus vulgaris and Thymus daenensis.
  • * Estimation of speciation events occurring between 1.5-2.1 and 9-10.2 Million Years Ago (MYA).

Conclusions:

  • * This study provides a comprehensive overview of terpenoid-related genes in Thymus.
  • * The findings enhance the understanding of evolutionary dynamics and genetic relationships within the genus.
  • * This research lays the groundwork for future studies on optimizing the biosynthesis of valuable compounds in Thymus species.