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QTL mapping: locating genetic factors behind complex traits

Contribution grade

Quantitative genetics and breeding methods · Scoped scientific or research-capability contribution

Reference score55,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Lander and Botstein developed methods for locating factors underlying quantitative traits using genetic linkage maps, including interval mapping and selective genotyping. The framework helped connect measured traits to regions of a genome.

Scientific scope

Lander and Botstein developed methods for locating factors underlying quantitative traits using genetic linkage maps, including interval mapping and selective genotyping. The framework helped connect measured traits to regions of a genome. Scope limitation: A mapped region is not automatically a causal gene, a useful breeding target in every population or a released crop variety. Earlier linkage theory and experimental mapping supplied important foundations.

Evidence

Assessment uses the catalogue-linked source evidence for the stated contribution. A mapped region is not automatically a causal gene, a useful breeding target in every population or a released crop variety. Earlier linkage theory and experimental mapping supplied important foundations.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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