Cloning and analysis of the resistance gene fragments from silverleaf sunflower Helianthus agrophyllus

Cloning and analysis of the resistance gene fragments from silverleaf sunflower Helianthus... Using a combination of degenerate primers designed from the NBS domains of the resistance genes, amplification and subsequent cloning of the resistance gene fragments from sunflower (Helianthus agrophyllus) was conducted. Sequences of cloned PCR products differed from one another and displayed homology to NBS domain fragments of the already known plant resistance genes, as well as to the analogous genes from different classes. The highest homology was shown to the NBS domain regions of cultivated sunflower and the other members of the family Compositae. Two cloned fragments had open reading frames, while the other sequences carried stop codons and seemed to belong to pseudogenes. Amino acid sequences of Helianthus agrophyllus analyzed contained conservative regions typical of NBS domains of the resistance gene products. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Cloning and analysis of the resistance gene fragments from silverleaf sunflower Helianthus agrophyllus

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Publisher
Springer Journals
Copyright
Copyright © 2007 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795407040059
Publisher site
See Article on Publisher Site

Abstract

Using a combination of degenerate primers designed from the NBS domains of the resistance genes, amplification and subsequent cloning of the resistance gene fragments from sunflower (Helianthus agrophyllus) was conducted. Sequences of cloned PCR products differed from one another and displayed homology to NBS domain fragments of the already known plant resistance genes, as well as to the analogous genes from different classes. The highest homology was shown to the NBS domain regions of cultivated sunflower and the other members of the family Compositae. Two cloned fragments had open reading frames, while the other sequences carried stop codons and seemed to belong to pseudogenes. Amino acid sequences of Helianthus agrophyllus analyzed contained conservative regions typical of NBS domains of the resistance gene products.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Apr 20, 2007

References

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