Biology Reference
In-Depth Information
Identification of Flowering
Genes in Strawberry, a
perennial sd plant
Katriina Mouhu, Timo Hytönen, Kevin Folta, Marja Rantanen,
Lars Paulin, Petri Auvinen and Paula Elomaa
abstRact
Background
We are studying the regulation of flowering in perennial plants by using dip-
loid wild strawberry (Fragaria vesca L.) as a model. Wild strawberry is a fac-
ultative short-day plant with an obligatory short-day requirement at tem-
peratures above 15°C. At lower temperatures, however, flowering induction
occurs irrespective of photoperiod. In addition to short-day genotypes, ever-
bearing forms of wild strawberry are known. In 'Baron Solemacher' reces-
sive alleles of an unknown repressor, SEASONAL FLOWERING LOCUS
(SFL), are responsible for continuous flowering habit. Although flower in-
duction has a central effect on the cropping potential, the molecular control of
 
 
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