NDLI: Homology-dependent DNA Transfer from Plants to a Soil Bacterium Under Laboratory Conditions: Implications in Evolution and Horizontal Gene Transfer

Content Provider	Springer Nature Link
Author	Tepfer, David Garcia Gonzales, Rolando Mansouri, Hounayda Seruga, Martina Message, Brigitte Leach, Francesca Perica, Mirna Curkovic
Copyright Year	2003
Abstract	DNA transfer was demonstrated from six species of donor plants to the soil bacterium, Acinetobacter spp. BD413, using neomycin phosphotransferase (nptII) as a marker for homologous recombination. These laboratory results are compatible with, but do not prove, DNA transfer in nature. In tobacco carrying a plastid insertion of nptII, transfer was detected with 0.1 g of disrupted leaves and in oilseed rape carrying a nuclear insertion with a similar quantity of roots. Transfer from disrupted leaves occurred in sterile soil and water, without the addition of nutrients. It was detected using intact tobacco leaves and intact tobacco and Arabidopsis plants in vitro. Transfer was dose-dependent and sensitive to DNase, and mutations in the plant nptII were recovered in receptor bacteria. DNA transfer using intact roots and plants in vitro was easily demonstrated, but with greater variability. Transfer varied with plant genome size and the number of repeats of the marker DNA in the donor plant. Transfer was not detected in the absence of a homologous nptII in the receptor bacteria. We discuss these results with reference to non-coding DNA in plant genomes (e.g., introns, transposons and junk DNA) and the possibility that DNA transfer could occur in nature.
Starting Page	425
Ending Page	437
Page Count	13
File Format	PDF
ISSN	09628819
Journal	Transgenic Research
Volume Number	12
Issue Number	4
e-ISSN	15739368
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Genetics Plant Sciences Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Genetics Animal Science and Zoology Biotechnology Agronomy and Crop Science

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