High-resolution association mapping with libraries of immortalized lines from ancestral landraces.

ABSTRACT:

Key message

Association mapping with immortalized lines of landraces offers several advantages including a high mapping resolution, as demonstrated here in maize by identifying the causal variants underlying QTL for oil content and the metabolite allantoin. Landraces are traditional varieties of crops that present a valuable yet largely untapped reservoir of genetic variation to meet future challenges of agriculture. Here, we performed association mapping in a panel comprising 358 immortalized maize lines from six European Flint landraces. Linkage disequilibrium decayed much faster in the landraces than in the elite lines included for comparison, permitting a high mapping resolution. We demonstrate this by fine-mapping a quantitative trait locus (QTL) for oil content down to the ph

SUBMITTER: Wurschum T 

PROVIDER: S-EPMC8741726 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature