What question did this study set out to answer?

To develop and validate a Multiparent Advanced Generation Inter-Cross (MAGIC) mapping population in Arabidopsis thaliana for high-resolution fine-mapping of quantitative trait loci.

July 9, 2009PLoS GeneticsOpen Access

A Multiparent Advanced Generation Inter-Cross to Fine-Map Quantitative Traits in Arabidopsis thaliana

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Authors

PKPaula X. KoverUniversity of Bath WVWilliam ValdarUniversity of North Carolina at Chapel Hill JTJoseph TrakaloCentre for Human Genetics

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Implication

Genetic mapping study demonstrates high-precision QTL detection in Arabidopsis thaliana MAGIC lines, highlighting a scalable approach to dissect complex traits.

Key Points

To develop and validate a Multiparent Advanced Generation Inter-Cross (MAGIC) mapping population in Arabidopsis thaliana for high-resolution fine-mapping of quantitative trait loci.
Generated 527 recombinant inbred lines descended from a heterogeneous stock of 19 intermated Arabidopsis thaliana founder accessions.
Genotyped the 19 founders and 527 recombinant lines using 1,260 single nucleotide polymorphisms and phenotyped lines for development-related traits.
Reconstructed each line's genome as an ancestral mosaic to fine-map quantitative trait loci and simulated mapping precision across varying population sizes.
Simulations demonstrated that QTL explaining 10% of phenotypic variance are detected with an average mapping error of approximately 300 kb, which drops below 200 kb when doubling the line count.
Fine-mapped multiple established QTL with high precision and successfully identified novel QTL associated with seed germination timing and bolting time.

Cite This Study

Kover et al. (2009) studied this question.

synapsesocial.com/papers/6a98dfe719c7e0464f272c36 https://doi.org/10.1371/journal.pgen.1000551

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Implication

Genetic mapping study demonstrates high-precision QTL detection in Arabidopsis thaliana MAGIC lines, highlighting a scalable approach to dissect complex traits.

A Multiparent Advanced Generation Inter-Cross to Fine-Map Quantitative Traits in Arabidopsis thaliana

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Implication

Key Points

Cite This Study

A Multiparent Advanced Generation Inter-Cross to Fine-Map Quantitative Traits in Arabidopsis thaliana

Discussion

Member takes

Implication

Key Points

Cite This Study

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