The present invention relates to a modified Cullin1 gene which leads to a plant type that enables efficient cultivation and/or is suitable for situations that require smaller portions, or reduces the labour, time and expenses involved with storing, handling and transporting of redundant plant leaves. The invention also relates to plants comprising the modified Cullin1 gene. The modified Cullin1 gene provides plants with a compact growth phenotype, i.e. comprising shorter internode length and/or a smaller leaf area when compared to plants not comprising the modified Cullin1 gene. The invention further relates to the use of the modified Cullin1 gene for the identification and development of a plant showing a compact growth phenotype, i.e. comprising shorter internodes and/or a smaller leaf area.
