The genetic architecture of the maize progenitor, teosinte, and how it was altered during maize domestication.

ABSTRACT: The genetics of domestication has been extensively studied ever since the rediscovery of Mendel's law of inheritance and much has been learned about the genetic control of trait differences between crops and their ancestors. Here, we ask how domestication has altered genetic architecture by comparing the genetic architecture of 18 domestication traits in maize and its ancestor teosinte using matched populations. We observed a strongly reduced number of QTL for domestication traits in maize relative to teosinte, which is consistent with the previously reported depletion of additive variance by selection during domestication. We also observed more dominance in maize than teosinte, likely a consequence of selective removal of additive variants. We observed that large effect QTL have low minor

SUBMITTER: Chen Q 

PROVIDER: S-EPMC7266358 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature