Integration of Agrobacterium Tumefaciens T-DNA in the Saccharomyces Cerevisiae Genome by Illegitimate Recombination
Overview
Authors
Affiliations
Agrobacterium tumefaciens can transfer part of its Ti plasmid, the T-DNA, to plant cells where it integrates into the nuclear genome via illegitimate recombination. Integration of the T-DNA results in small deletions of the plant target DNA, and may lead to truncation of the T-DNA borders and the production of filler DNA. We showed previously that T-DNA can also be transferred from A. tumefaciens to Sac-charomyces cerevisiae and integrates into the yeast genome via homologous recombination. We show here that when the T-DNA lacks homology with the S. cerevisiae genome, it integrates at random positions via illegitimate recombination. From 11 lines the integrated T-DNA was cloned back to Escherichia coli along with yeast flanking sequences. The T-DNA borders and yeast DNA flanking the T-DNA were sequenced and characterized. It was found that T-DNA integration had resulted in target DNA deletions and sometimes T-DNA truncations or filler DNA formation. Therefore, the molecular mechanism of illegitimate recombination by which T-DNA integrates in higher and lower eukaryotes seems conserved.
-Mediated Transformation of the Aquatic Fungus FBCC-F1546.
Yoon J, Kim Y, Kim S, Jeong H, Park J, Jeong M J Fungi (Basel). 2023; 9(12).
PMID: 38132759 PMC: 10744869. DOI: 10.3390/jof9121158.
Practical Approaches for the Yeast Genome Modification.
Stepchenkova E, Zadorsky S, Shumega A, Aksenova A Int J Mol Sci. 2023; 24(15).
PMID: 37569333 PMC: 10419131. DOI: 10.3390/ijms241511960.
Alling R, Galindo-Trigo S Plant Physiol. 2023; 193(4):2292-2297.
PMID: 37555453 PMC: 10663105. DOI: 10.1093/plphys/kiad449.
Molecular Farming of Pembrolizumab and Nivolumab.
Stark M, Joubert A, Visagie M Int J Mol Sci. 2023; 24(12).
PMID: 37373192 PMC: 10298108. DOI: 10.3390/ijms241210045.
JAZ8 Interacts With VirE3 Attenuating Agrobacterium Mediated Root Tumorigenesis.
Li S, Xu B, Niu X, Lu X, Cheng J, Zhou M Front Plant Sci. 2021; 12:685533.
PMID: 34868098 PMC: 8639510. DOI: 10.3389/fpls.2021.685533.