The PIN2 ortholog in barley modifies root gravitropism and architecture.

ABSTRACT: Roots provide the critical interface where plants acquire nutrients and water, but our limited understanding of the genetic controls modulating root system architecture (RSA) in crop species constrains opportunities to develop future cultivars with improved root systems. However, there is vast knowledge of root developmental genes in model plant species, which has the potential to accelerate progress in crops with more complex genomes, particularly given that genome editing protocols are now available for most species. PIN-FORMED2 (PIN2) encodes a root-specific polar auxin transporter, where its absence resulted in roots being unable to orient themselves using gravity, producing a significantly wider root system. To explore the role of PIN2 in a cereal crop, we used CRISPR/Cas9 (where CRIS

SUBMITTER: Aldiss Z 

PROVIDER: S-EPMC12328839 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature