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WheatQTLdb: a QTL database for wheat.

Kalpana Singh1, Ritu Batra1, Shiveta Sharma1

  • 1Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, 250004, India.

Molecular Genetics and Genomics : MGG
|June 11, 2021
PubMed
Summary
This summary is machine-generated.

A new database, WheatQTLdb, consolidates thousands of wheat quantitative trait loci (QTL) and associated markers. This resource aids geneticists and breeders in wheat improvement through fine mapping and marker-assisted selection.

Keywords:
Epistatic QTLGWASMTAQTL databaseWheatQTLdbmetaQTL

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Area of Science:

  • Genetics
  • Plant Breeding
  • Bioinformatics

Background:

  • Thousands of quantitative trait loci (QTL) and linked markers for wheat have been identified over three decades.
  • No single, exhaustive database currently exists for comprehensive wheat QTL data.
  • Existing data is fragmented across numerous publications.

Purpose of the Study:

  • To create an exhaustive, centralized database of wheat QTL data from published literature up to May 2020.
  • To compile data from interval mapping and genome-wide association studies (GWAS).
  • To provide a valuable resource for geneticists and plant breeders.

Main Methods:

  • Literature search for QTL/marker-trait associations (MTAs).
  • Data curation and assembly into the WheatQTLdb.
  • Inclusion of data on morphological, physiological, stress tolerance, quality, and yield traits.

Main Results:

  • The WheatQTLdb contains 11,552 QTL, 107 epistatic QTL, and 330 metaQTL for hexaploid wheat.
  • Data covers a wide range of traits including N and P use efficiency, biofortification, abiotic and biotic stress tolerance, quality, and yield.
  • Includes information on QTL names, traits, markers, parental genotypes, and mapping populations.

Conclusions:

  • WheatQTLdb is the largest collection of its kind, serving as a crucial resource for wheat geneticists and breeders.
  • Facilitates further research in fine mapping, gene cloning, and marker-assisted selection (MAS).
  • Aims to accelerate breeding programs and enhance wheat improvement.