The relationship between resistance to a severe strain (BYMV-S) and the type strain (BYMV) of bean yellow mosaic virus in Phaseolus vulgaris L. Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/3t945v386

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Twenty-eight bean breeding lines and cultivars were classified for resistance to bean yellow mosaic virus type strain 7634 (BYMV) and severe strain Gilbert 6 (BYMV-S). 'Great Northern U.I. 31' (G.N. 31) and breeding lines (S-lines) selected from a cross between G.N. 31 and O.S.C. 21 were chosen as parents for their resistance to one or both virus strains. Additional susceptible parents included 'Medford,' 'Romano 1461,' and 'Dwarf Horticultural.' F₁, F₂, and F₃ progeny were screened for resistance to BYMV and BYMV-S. F₁ tests indicated resistance to be recessive for each virus strain. Possible complementary effects of genes from two resistant parents with similar genetic backgrounds were observed on susceptible F₁, F₂, and F₃ plants for both virus strains. Modifying genes apparently obscured or reduced symptom expression in crosses involving the S-lines, G.N. 31, and 'Medford.' F₃ tests were conducted on only five of the crosses. With crosses between 'Dwarf Horticultural' and G.N. 31 F₃ tests indicated that two recessive genes controlled resistance as a 15/1 ratio susceptible: resistant was found for both virus strains. Although modifier effects and complementary gene action were proposed for the cross between the resistant parents, G.N. 31 and Sl-5-1, a two gene system was also suggested in the F₃ as an acceptable nine: seven ratio was obtained in most cases. In addition, reciprocal differences were observed with Sl-5-1, 'Medford, ' and 'Dwarf Horticultural' as female parents. F₃ tests were also used to determine the relationship of inheritance of resistance between the two virus strains. A partial relationship in the inheritance of resistance was found using chi square tests relating family classification of both strains and parental reactions. Using additional chi square tests and correlation coefficients a stronger relationship was found in the classification of families for severity of expression. In crosses where a positive relationship was not indicated, differences were attributed to possible cytoplasmic effects and complementary modifiers.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome, 256 Grayscale) using Scamax Scan+ V.1.0.32.10766 on a Scanmax 412CD by InoTec in PDF format. LuraDocument PDF Compressor V.5.8.71.50 used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Erin Clark (clarkeri@onid.orst.edu) on 2011-09-09T22:04:24Z No. of bitstreams: 1 TATCHELLSANAP1979.pdf: 1083152 bytes, checksum: 8baa2e03512b593bb0343452eb3136af (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2011-09-26T15:17:38Z (GMT) No. of bitstreams: 1 TATCHELLSANAP1979.pdf: 1083152 bytes, checksum: 8baa2e03512b593bb0343452eb3136af (MD5)
  • description.provenance : Made available in DSpace on 2011-09-26T15:17:38Z (GMT). No. of bitstreams: 1 TATCHELLSANAP1979.pdf: 1083152 bytes, checksum: 8baa2e03512b593bb0343452eb3136af (MD5) Previous issue date: 1978-12-12
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2011-09-12T15:36:04Z (GMT) No. of bitstreams: 1 TATCHELLSANAP1979.pdf: 1083152 bytes, checksum: 8baa2e03512b593bb0343452eb3136af (MD5)

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items