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QTL analysis of heterostyly in Primula

QTL analysis of heterostyly in <i>Primula</i>
QTL analysis of heterostyly in <i>Primula</i>

Heterostyly and self-incompatibility are usually controlled by the S locus complex, but the usually distylous Primula siebolodii shows continuous variation of anther and stigma position in some populations. Yoshida et al. make a genetic map of the species, and show that major QTLs for stigma and anther heights collocate with the S locus (accounting for 85% of the phenotypic variance). There are additional QTLs controlling anther height and corolla tube length, some being morph-specific. The markers were effective for investigating morph ratios in non-flowering populations, important as floral morphology is a target of selection and ratios differ between populations.

Written by Annals of Botany Office

The Annals of Botany Office is based at the University of Oxford.

Inbreeding and outbreeding depression in Grevillea

Inbreeding and outbreeding depression in Grevillea

Estimating below-ground biomass in forest plantations

Estimating below-ground biomass in forest plantations