Molecular cloning and characterization of three CoIDA genes in Camellia oleifera

The INFLORESCENCE DEFICIENT IN ABSCISSION (IDA) controls floral organ abscission in plants. IDA belongs to IDA-LIKE (IDL) gene family that is involved regulation of Arabidopsis development. Herein, we identified three genes, CoIDA1, CoIDA2 and CoIDA3 Camellia oleifera (Camellia Abel. cv. Huashuo) suggested their involvement the fruits abscission. full-length cDNA sequences were 207 bp, 276 bp 273 encoding proteins 68, 91 90 amino acids, respectively. These CoIDA genes single exon (SEGs) with a conserved extended PIP motif (EPIP) at C-terminal has been implicated play an important role governing protein function for enhanced flower abortion rate. highest expression CoIDA1 was young peduncles lowest fruits. However, expressions both roots, significantly increased zones (AZs) abnormal (AF) ethephon treated (ETH-F) respect normal (NF), which suggest are related C. oleifera. This study provided preliminary understanding about could lead detailed functional analysis utilization improving yield potential.