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The EMB30 gene is involved in apical-basal pattern formation in the Arabidopsis embryo. Mutations in this locus produce mutants with a wide range of seedling phenotypes, but all of the mutants lack a root and a true hypocotyl. We have cloned the EMB30 gene, and it encodes a protein that has similarity to the yeast Sec7 protein and to two other open reading(More)
Severa1 homeotic genes that are involved in floral differentiation have recently been isolated and characterized from Antirrhinum majus and Arabidopsis thaliana (Sommer et al., 1990; Yanofsky et al., 1990). Based on genetic and molecular studies, a model has been proposed to explain the roles of different homeotic genes in the specification of floral organ(More)
The Arabidopsis EMB30 gene is essential for controlling the polarity of cell growth and for normal cell adhesion during seedling development. In this article, we show that emb30 mutations also affect the growth of undifferentiated plant cells and adult tissues. EMB30 possesses a Sec7 domain and, based on similarities to other proteins, presumably functions(More)
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