Genome-wide identification and functional characterization of LBD gene family in four Cymbidium species (Orchidaceae) and potential regulatory role of CsiLBD27 in floral development of Cymbidium sinense.

Background: The Lateral Organ Boundaries Domain (LBD) gene family, encompassing plant-specific LOB domain proteins, plays essential roles in various aspects of plant growth and development, and has continuously diversified its functions across numerous species. However, studies on LBD genes in the Orchidaceae family remain limited. To our knowledge, this is the first systematic investigation of the LBD gene family in Cymbidium, a genus that exhibits remarkable species and trait diversity within the Orchidaceae.

Genome-Wide Identification, Expression, and Molecular Characterization of the Gene Family in Seven Orchid Species.

The orchid is one of the most distinctive and highly valued flowering plants. Nevertheless, the () gene family plays significant roles in the control of flowering, and its functions in Orchidaceae have been minimally explored. This research identified 68 potential genes within seven orchids' complete genome, divided into three groups (groups I, II, and III) via a phylogenetic tree.

Functional conservation and divergence of -like genes in floral development in .

is one of the most important traditional Chinese Orchids due to its unique and highly ornamental floral organs. Although the ABCDE model for flower development is well-established in model plant species, the precise roles of these genes in are not yet fully understood. In this study, four -like genes were isolated and identified from .