Heritability and variance components of seed size in wild species: influences of breeding design and the number of genotypes tested.

ABSTRACT: Seed size affects individual fitness in wild plant populations, but its ability to evolve may be limited by low narrow-sense heritability (h²). h² is estimated as the proportion of total phenotypic variance (σ²_P) attributable to additive genetic variance (σ²_A), so low values of h² may be due to low σ²_A (potentially eroded by natural selection) or to high values of the other factors that contribute to σ²_P, such as extranuclear maternal effects (m²) and environmental variance effects (e²). Here, we reviewed the published literature and performed a meta-analysis to determine whether h² of seed size is routinely low in wild populations and, i

SUBMITTER: Larios E 

PROVIDER: S-EPMC10076259 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature