Fig. 5

The PEBP family in Tulipa gesneriana. (A) ML phylogenetic tree of tulip PEBPs (highlighted in green) in comparison to other PEBP proteins of flowering plants. Abbreviations for the species names are as follows: Ac (Allium cepa), At (Arabidopsis thaliana), Os (Oryza sativa), Sl (Solanum lycopersicum), St (Solanum tuberosum), Tg (Tulipa gesneriana) and Vv (Vitis vinifera). Relative expression of PEBP genes in (B) leaves of the mother plant, (C) scales of the mother plant (F-A is the scale associated with the flowering bud; NF-A is the scale associated with the non-flowering bud), or (D) the meristematic area of daughter bulbs, which refers to the blue bulblets depicted in C. In the illustrations, the purple color indicates the mother plant, while blue indicates the daughter bulbs. (B-D) x-axis indicates the time in Weeks After Planting (WAP). Sampling of leaves (B) and scales (C) from the mother plant did not proceed after the indicated time points (24 and 14 WAP, respectively) because of the senescence of the material