The <i>SEP</i> homologous gene <i>TEMARY</i> regulates inflorescence phenotypes in <i>Hydrangea Macrophylla</i>.

ABSTRACT: Most Hydrangea species have inflorescences composed of two types of flowers: decorative flowers with showy sepals and plain nondecorative flowers. In wild plants of Hydrangea macrophylla, the decorative flowers are located at the periphery of the corymb, resulting in the lacecap phenotype. However, after the discovery of the mophead phenotype, in which decorative flowers are borne not only at the periphery but also on the entire inflorescence, it developed remarkably as a garden plant. In this study, we aimed to identify the gene controlling the inflorescence type and the mutations causing the mophead phenotype. Linkage analyses identified a SEPALLATA (SEP) homologous gene as a candidate gene, named TEMARY. We analyzed the genome sequences of TEMARY

SUBMITTER: Nashima K 

PROVIDER: S-EPMC11879557 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature