Genetic analysis and molecular mapping of the early flowering gene(s) introgressed from the late flowering species Brassica oleracea into B.napus

The Challenge

Risk of frost damage to B. napus is still a threat due to flowering and maturity timing of current cultivars.

The Project

Gain a better understanding of the flowering and maturity genetic control in B. napus through mapping the gene(s) and identifying molecular markers.

The Results

Two major loci were identified by QTL mapping that are involved in controlling the flowering variation. Five QTL affecting leaf, root and total dry matter were identified.

Grower Benefits

Early flowering advantages must be compared to anticipated yield as extreme early flowering type will cost yield, but slight improvement can be achieved without significant yield loss.