CO/FT regulatory module controls timing of flowering and seasonal growth cessation in trees.
2006 (English)In: Science, ISSN 1095-9203, Vol. 312, no 5776, 1040-3 p.Article in journal (Refereed) Published
Forest trees display a perennial growth behavior characterized by a multiple-year delay in flowering and, in temperate regions, an annual cycling between growth and dormancy. We show here that the CO/FT regulatory module, which controls flowering time in response to variations in daylength in annual plants, controls flowering in aspen trees. Unexpectedly, however, it also controls the short-day–induced growth cessation and bud set occurring in the fall. This regulatory mechanism can explain the ecogenetic variation in a highly adaptive trait: the critical daylength for growth cessation displayed by aspen trees sampled across a latitudinal gradient spanning northern Europe.
Place, publisher, year, edition, pages
2006. Vol. 312, no 5776, 1040-3 p.
Adaptation; Physiological/genetics, Arabidopsis/genetics/growth & development, Arabidopsis Proteins/genetics/physiology, DNA-Binding Proteins/genetics/physiology, Flowers/*genetics/growth & development, Gene Expression Regulation; Plant, Genes; Plant, Germany, Photoperiod, Phytochrome A/genetics/physiology, Plant Proteins/*genetics/physiology, Plants; Genetically Modified, Populus/*genetics/growth & development, Seasons, Sweden, Transcription Factors/genetics/physiology, Trees/*genetics/growth & development
IdentifiersURN: urn:nbn:se:umu:diva-14208DOI: doi:10.1126/science.1126038PubMedID: 16675663OAI: oai:DiVA.org:umu-14208DiVA: diva2:153879