Diversity in bread and durum wheat stigma morphology and linkage of increased stigma length to dwarfing gene Rht14.

ABSTRACT:

Key message

The dwarfing allele Rht14 of durum wheat associates with greater stigma length, an important trait for hybrid breeding, whilst major dwarfing alleles Rht-B1b and Rht-D1b showed little to no effect. Although much understudied in wheat, the stigma is a crucial component for attaining grain set, the fundamental basis for yield, particularly in hybrid production systems where successful grain set relies on wind-driven pollen dispersal by the male parent and effective pollen capture by the female parent. Females with long stigma that exsert early are thought to be advantageous. Using glasshouse-grown lines, we examined variation in Total Stigma Length (TSL) across diverse panels comprising 27 durum and 116 bread wheat genotypes. Contrasting genotypes were selected for popula

SUBMITTER: Pallotta M 

PROVIDER: S-EPMC11178622 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature