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Science 21 August 1981:
Vol. 213. no. 4510, pp. 907 - 909
DOI: 10.1126/science.213.4510.907
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Articles

Disease Resistance: Incorporation into Sexually Incompatible Somatic Hybrids of the Genus Nicotiana

DAVID A. EVANS 1, CHRISTOPHER E. FLICK 2, and Roy A. JENSEN 2

1 Campbell Institute for Research and Technology, Cinnaminson, New Jersey 08077
2 Center for Somatic Cell Genetics and Biochemistry, State University of New York, Binghamton 13901

Somatic hybrid plants of Nicotiana nesophila and N. stocktonii with N. tabacum (cultivated tobacco) were produced by protoplast fusion. These combinations cannot be achieved with conventional sexual hybridization, yet are important in that the wild Nicotiana species are resistant to numerous diseases. Hybridity was verified by chromosome number, isoenzyme analysis, morphological characteristics, and genetic behavior. Local lesion-type resistance to tobacco mosaic virus has been observed in leaves of these somatic hybrid plants.

Submitted on September 15, 1980
Revised on March 18, 1981


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Nuclear DNA Content Estimates in Multicellular Green, Red and Brown Algae: Phylogenetic Considerations.
D. F. KAPRAUN (2005)
Ann. Bot. 95, 7-44
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Science. ISSN 0036-8075 (print), 1095-9203 (online)