Male Linked Genomic Region Determines Sex in Dioecious Amaranthus palmeri.

ABSTRACT: Dioecy, the separation of reproductive organs on different individuals, has evolved repeatedly in different plant families. Several evolutionary paths to dioecy have been suggested, but the mechanisms behind sex determination is not well understood. The diploid dioecious Amaranthus palmeri represents a well-suited model system to study sex determination in plants. Despite the agricultural importance of the species, the genetic control and evolutionary state of dioecy in A. palmeri is currently unknown. Early cytogenetic experiments did not identify heteromorphic chromosomes. Here, we used whole-genome sequencing of male and female pools from 2 independent populations to elucidate the genetic control of dioecy in A. palmeri. Read alignment to a close monoecious relative and allele frequency

SUBMITTER: Neves CJ 

PROVIDER: S-EPMC7846199 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature