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PlantIntronDB: a database for plant introns that host functional elements.

Weiping Wang, Jiming Hu1, Han Li1

  • 1Agricultural Big Data Research Center, College of Information Science and Engineering, Shandong Agricultural University, Taian, Shandong 271018, China.

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Summary

A new database, PlantIntronDB, offers comprehensive data on plant introns with functional elements across five species. This resource aids researchers in understanding intron roles in plant growth and development.

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Area of Science:

  • Plant Biology
  • Genomics
  • Bioinformatics

Background:

  • Plant introns play crucial roles in growth and development.
  • Existing research lacks a comprehensive, open database for plant introns with functional elements.
  • Large-scale sequencing data necessitates tools for high-throughput functional verification.

Purpose of the Study:

  • To design and establish PlantIntronDB, a comprehensive database of plant introns hosting functional elements.
  • To analyze RNA-seq data from five plant species to identify and characterize these introns.
  • To provide a user-friendly platform for accessing and downloading intron data.

Main Methods:

  • Systematic analysis of RNA-seq samples from *Arabidopsis thaliana*, *Gossypium raimondii*, *Zea mays*, *Brassica napus*, and *Oryza sativa*.
  • Identification and characterization of introns containing functional elements.
  • Database construction with a web interface for data retrieval and download.

Main Results:

  • Discovered 100,126 introns hosting functional elements across five species.
  • Observed similar numbers of functional elements on positive and negative strands.
  • Found introns are typically <1500 bp with high Adenine/Thymine (A/T) content.
  • Noted variations in functional element distribution among species.

Conclusions:

  • PlantIntronDB provides valuable data for studying plant introns and their functional elements (e.g., circular RNAs, lncRNAs).
  • The database supports high-throughput functional verification and research into plant growth and development.
  • Accessible data empowers researchers to explore the diverse roles of plant introns.