Chinese cabbage is one of most important vegetable crop in Eastern Asian countries including Korea. Because Chinese cabbage is a leafy vegetable, genetic research with respect to the leaf morphology is important. In this research, we have used two inbred lines of Chinese cabbages (Kenshin and RCBr) and generated recombinant lines having various leaf morphology. In F2 population of Kenshin X RCBr, leaf shape showed very dramatic variations with normal distribution in terms of leaf size, petiole length, leaf margin and etc. Microarray with a 135K DNA chip (version 3) integrated 2 sets of total Chinese cabbage genes. Biological process of candidate genes was classified into transcription factor, genes encoding kinase activity protein, protein folding related genes, oxidation-reduction process genes. Putative leaf-morphology-related genes were 142 that are involed in phytohormone pathway genes, cell proliferation & cell elongation related genes and genes controlling leaf morphogenesis etc. These genes are further classified to phytohormone signaling-associated genes (SAUR44, PIN2, CPK6, RDUF2), leaf development regulating genes (DWF4, CUC2, TCP15, BLH4, NGA4), and cell division and cell growth related genes (ILP1, TCTP, EMB1027).

• Sangmoo Lee(Chungnam National University)
• Yoonkang Hur(Chungnam National University) Corresponding Author