Population genomics of Zea species identifies selection signatures during maize domestication and adaptation.

ABSTRACT:

Background

Maize (Zea mays L. ssp. mays) was domesticated from teosinte (Zea mays ssp. parviglumis) about 9000 years ago in southwestern Mexico and adapted to a range of environments worldwide. Researchers have depicted the maize domestication and adaptation processes over the past two decades, but efforts have been limited either in sample size or genetic diversity. To better understand these processes, we conducted a genome-wide survey of 982 maize inbred lines and 190 teosinte accessions using over 40,000 single-nucleotide polymorphism markers.

Results

Population structure, principal component analysis, and phylogenetic trees all confirmed the evolutionary relationship between maize and teosinte, and determined the evolutionary lineage of all species within teosinte. Shar

SUBMITTER: Xu G 

PROVIDER: S-EPMC8855575 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature