Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Markers linked to the bc-3 gene conditioning resistance to bean common mosaic potyviruses in common bean
Euphytica, Volume 144, No. 3, Year 2005
Notification
URL copied to clipboard!
Description
Necrotic strains of bean common mosaic potyviruses are becoming increasingly problematic in bean growing areas of Africa and Europe. Pyramiding epistatic resistance genes provides the most effective long-term strategy for disease control against all known strains of the virus. Indirect selection using tightly linked markers should facilitate the breeding of desired epistatic resistance gene combinations. In common bean, the most effective strategy for broad spectrum control of the bean common mosaic potyviruses is to combine I and bc-3 genes. We describe the use of near-isogenic lines and segregating populations from different gene pools combined with bulked segregant analysis to identify markers tightly linked with the recessive bc-3 gene that conditions resistance to all strains of bean common mosaic necrosis virus. We identified a RAPD marker, OG6595, linked at 3.7 cM from the bc-3, and the marker was used to confirm the location of bc-3 gene on bean linkage group B6. A codominant AFLP marker, E ACA M CGG -169/172 was identified and linked at 3.5 cM from the bc-3 and the AFLP and OG6595 markers flanked the bc-3 gene. The AFLP marker was converted to the STS marker SE ACA M CGG -134/137 which showed co-segregation with the original AFLP marker. The 134 bp fragment associated with resistance was linked with the bc-3 gene present in a diverse group of bean genotypes except in two kidney bean lines. The OG6595 marker mapped on B6 supported independence of bc-3 from the I gene located on B2, which provides the opportunity to readily combine both genes in a single bean cultivar for broad spectrum resistance to bean common mosaic potyviruses. © Springer 2005.
Authors & Co-Authors
Mukeshimana, Gerardine
Rwanda, Butare
University of Rwanda
Pañeda, Astrid
Spain, Oviedo
Universidad de Oviedo
Rodríguez-Suárez, Cristina
Spain, Oviedo
Universidad de Oviedo
Ferreira, Juan José
Spain, Villaviciosa
Serida
Giraldez, Ramón
Spain, Oviedo
Universidad de Oviedo
Kelly, James D.
United States, East Lansing
Michigan State University
Statistics
Citations: 58
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1007/s10681-005-7397-8
ISSN:
00142336
Research Areas
Genetics And Genomics