Aida M, Ishida T, Fukaki H, Fujisawa H, Tasaka M
Department of Botany, Graduate School of Science, Kyoto University, Japan.
Plant Cell. 1997 Jun;9(6):841-57. doi: 10.1105/tpc.9.6.841.
Mutations in CUC1 and CUC2 (for CUP-SHAPED COTYLEDON), which are newly identified genes of Arabidopsis, caused defects in the separation of cotyledons (embryonic organs), sepals, and stamens (floral organs) as well as in the formation of shoot apical meristems. These defects were most apparent in the double mutant. Phenotypes of the mutants suggest a common mechanism for separating adjacent organs within the same whorl in both embryos and flowers. We cloned the CUC2 gene and found that the encoded protein was homologous to the petunia NO APICAL MERISTEM (NAM) protein, which is thought to act in the development of embryos and flowers.
CUC1和CUC2（杯状子叶）是拟南芥新鉴定出的基因，其突变导致子叶（胚器官）、萼片和雄蕊（花器官）分离以及茎尖分生组织形成出现缺陷。这些缺陷在双突变体中最为明显。突变体的表型表明在胚胎和花的同一轮中相邻器官分离存在共同机制。我们克隆了CUC2基因，发现其编码的蛋白质与矮牵牛无顶端分生组织（NAM）蛋白同源，该蛋白被认为在胚胎和花的发育中起作用。
