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. 2022 Mar 28;20(6):1182–1196. doi: 10.1111/pbi.13801

Figure 6.

Figure 6

Genetic basis of flower development. (a) Flower developmental stages (S1–S7). (b) Phylogenetic tree of type Ⅱ MADS‐box family, carnation genes denoted by blue dots. (c) The gene expression patterns of A‐/C‐function genes from various floral organs. Pe‐out (A): outer petals; Pe‐mid (B): inner petals; Pel‐st (C): petaloid stamens; and St (D): stamens. (d) The phenotype of 35S::DcaPI2.2 in Arabidopsis. The flower of 35S::DcPI2.2 transgenic are spread out (ⅰ) and contained petaloid sepals (ⅱ), Col means Colombia Arabidopsis. (e) ABC model in the double flower phenotype in carnation where in class A gene expression is maintained across floral organs resulting in the petalization of the inner whorls. S: sepal; P: petal; PI: petaloid stamen; St: stamen; C: carpel.