Martina V Silber

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Ubiquitin is highly conserved 76 amino acid protein involved, among other functions, in the selective degradation of proteins in the cell. From a tomato (Lycopersicon esculentum Mill. cv. Craigella) genomic library, we have isolated a clone encoding a polyubiquitin gene, designated ubq1-1 comprising seven repeats of ubiquitin and two C-terminal extension(More)
Relatively few species of flowering plants are dioecious and even fewer are known to have sex chromosomes. Current theory posits that homomorphic sex chromosomes, such as found in Bryonia dioica (Cucurbitaceae), offer insight into the early stages in the evolution of sex chromosomes from autosomes. Little is known about these early steps, but an(More)
Since the early evolution of land plants from primitive green algae, phenylpropanoid compounds have played an important role. In the biosynthesis of phenylpropanoids, 4-coumarate:CoA ligase (4CL; EC has a pivotal role at the divergence point from general phenylpropanoid metabolism to several major branch pathways. Although higher plant 4CLs have(More)
In tomato plants (Lycopersicon esculentum Mill.), the genes Tm-2 and Tm-2 2 confer resistance to Tomato mosaic virus (ToMV). Sequence analysis of ToMV strains able to break the Tm-2 or Tm-2 2 resistance revealed distinct amino acid exchanges in the viral 30 kDa protein, suggesting that the movement protein is recognized by both resistance genes to induce(More)
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