NDLI: Field resistance of transgenic burley tobacco lines and hybrids expressing the tobacco vein mottling virus coat protein gene

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Field resistance of transgenic burley tobacco lines and hybrids expressing the tobacco vein mottling virus coat protein gene

Combining a host gene and a tobacco vein mottling virus coat protein gene for broad and effective resistance to potyviruses in tobacco (Nicotiana tabacum L.)

Molecular Breeding : Volume 3, Issue 3, June 1997

Molecular Breeding : Volume 3, Issue 2, April 1997

Molecular Breeding : Volume 3, Issue 1, February 1997

Field resistance of transgenic burley tobacco lines and hybrids expressing the tobacco vein mottling virus coat protein gene

Content Provider	Springer Nature Link
Author	Xu, Dongmei Collins, Glenn B. Hunt, Arthur G. Nielsen, Mark T.
Copyright Year	1997
Abstract	Fifty transgenic lines expressing the tobacco vein mottling virus (TVMV) coat protein (CP) gene in five genetic backgrounds were evaluated under field conditions for response to mechanic inoculation with TVMV, tobacco etch virus (TEV) and potato virus Y (PVY). TVMV CP transgenic lines conferred resistance to TVMV, TEV and PVY under field conditions. Combining two strategies, coat protein-mediated resistance (CPMR) coupled with an endogenous resistance gene (Virgin A Mutant, VAM) significantly extended the range and magnitude of virus resistance and provided a potential valuable new source of protection against potyviruses. CP transgenic lines lacking the VAM gene had high resistance to TEV, medium resistance to PVY, and a recovery phenotype to TVMV. A series of hybrids involving transgenic lines were generated and tested under field conditions for response to virus inoculation. One copy of TVMV-CP gene presented in lines homozygous for the VAM gene provided effective resistance to all three potyviruses. These studies also suggested that selection of a suitable recipient genotype was critical and that field evaluation was necessary in order to select elite resistant transgenic lines. Engineering viral CP genes into genotypes possessing some level of virus resistance could be critical to achieve an effective level of resistance.
Starting Page	319
Ending Page	330
Page Count	12
File Format	PDF
ISSN	13803743
Journal	Molecular Breeding
Volume Number	3
Issue Number	4
e-ISSN	15729788
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1997-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Molecular Biology Biotechnology Agronomy and Crop Science

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Field resistance of transgenic burley tobacco lines and hybrids expressing the tobacco vein mottling virus coat protein gene

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