Chromosome-level assemblies of Amaranthus palmeri, Amaranthus retroflexus, and Amaranthus hybridus allow for genomic comparisons and identification of a sex-determining region.

ABSTRACT: Amaranthus palmeri (Palmer amaranth), Amaranthus retroflexus (redroot pigweed), and Amaranthus hybridus (smooth pigweed) are troublesome weeds that are economically damaging to several cropping systems. Collectively referred to as "pigweeds," these species are incredibly adaptive and have become successful competitors in diverse agricultural settings. The development of genomic resources for these species promises to facilitate the elucidation of the genetic basis of traits such as biotic and abiotic stress tolerance (e.g., herbicide resistance) and sex determination. Here, we sequenced and assembled chromosome-level genomes of these three pigweeds. By combining the haplotype-resolved assembly of A. palmeri with existing restriction site-associated DNA sequencing data, we identified an app

SUBMITTER: Raiyemo DA 

PROVIDER: S-EPMC11850965 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature