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Tiller production and survival in wheat

Dynamics of tillering and red/far-red ratio (R:FR) at the base of the canopy in the mapping population of ‘Forno’ and ‘Oberkulmer’.
Dynamics of tillering and red/far-red ratio (R:FR) at the base of the canopy in the mapping population of ‘Forno’ and ‘Oberkulmer’. Full details in Xie et al.

Xie et al. identify the genetic basis of tiller production and survival through a detailed quantitative trait locus (QTL) analysis in a bread wheat × spelt mapping population. In addition to genetic control, a low red:far red ratio (R:FR) is associated with early tillering cessation, few total shoots, high infertile shoot number and shoot abortion. They also determine the trade-offs between fertile shoot number and other yield components. These findings provide a deeper insight into the genetic and environmental determination of tillering dynamics and, in turn, yield potential in wheat.

Written by Annals of Botany Office

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

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