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Title: Screening bean germplasm for cross-resistance to candidate begomoviruses and Beet mild curly top virus

Author
item BROWN, J - UNIV OF ARIZONA
item Larsen, Richard

Submitted to: Bean Improvement Cooperative Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 10/15/2007
Publication Date: 10/29/2007
Citation: Brown, J. K., and Larsen, R. C. Screening bean germplasm for cross-resistance to candidate begomoviruses and Beet mild curly top virus. 19th Biennial Bean Improvement Cooperative. October 29-31, 2007, Madison, WI. Page 16.

Interpretive Summary:

Technical Abstract: Candidate cultivars of selected Phaselous vulgaris L. in a core collection (Americas) were screened for geminivirus cross-resistance by inoculating seedlings with candidate viruses from phylogenetically divergent genera Begomovirus and Curtovirus (family Geminiviridae). Field trials under natural virus pressure with Beet mild curly top virus (BMCTV) (previously, Worland strain) showed that Hystyle, Cardinal, G122, Othello, Zacatecano, Porrillo Sintetico, Moncayo, and Royal Red were highly resistant. Nine of 15 lines experimentally inoculated with Bean golden yellow mosaic virus (Puerto Rico), Bean calico mosaic virus, Cotton leaf crumple virus, and Squash leaf curl virus exhibited a resistance response. Of those, Cardinal, Moncayo, Othello, Royal Red, DOR, T39 and UI-114 also were resistant to BMCTV, indicating some extent of cross-resistance between virus genera and species in certain lines.