Conserved regions in the T-DNA of different Agrobacterium rhizogenes root-inducing plasmids
- 1 January 1987
- journal article
- research article
- Published by Springer Nature in Plant Molecular Biology
- Vol. 9 (1) , 19-26
- https://doi.org/10.1007/bf00017983
Abstract
The T-regions of the three so far identified types of Ri plasmids-corresponding to the synthesis of three different hairy root opines, agropine, mannopine and cucumopine-have been compared in detail by Southern blot cross hybridizations. Two distinct zones of very strong sequence homology, approximately 4 and 3 kilobases in length respectively, have been identified in all three T-regions. The highly conserved sequences, not present in Ti plasmid T-DNA, may encode essential rhizogenic functions common to all Agrobacterium rhizogenes T-DNAs.Keywords
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