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Effectiveness of pyramided genes in conferring resistance to anthracnose disease in common bean populations

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Title Effectiveness of pyramided genes in conferring resistance to anthracnose disease in common bean populations
 
Creator Kiryowa, Moses
Nkalubo, Stanley T.
Mukankusi, Clare
Male, Allan
Tukamuhabwe, Phineas
Rubaihayo, P.
Gibson, Paul T.
 
Subject marker-assisted selection
defence mechanisms-resistance mechanisms
pathogens
selección asistida por marcadores
mecanismos de defensa
organismos patógenos
 
Description Anthracnose disease (Colletotrichum lindemuthianum (Sacc. et. Magn) Lams. Scrib.) is one of the most devastating diseases that constrain common bean production in Uganda. A cascading pedigree pyramiding scheme was used to develop common bean populations to evaluate the effectiveness of pyramided and single resistance genes (Co-42, Co-43, Co-5, and Co-9) on disease development. Detached leaf trifoliates of F4:6 genotypes were screened with four C. lindemuthianum races (352, 713,767 and 2047). Disease severity data were subjected to ANOVA. Races, genotypes and Race x Genotype interaction were significant. Genes Co-42 and Co-5 conferred resistance to the four races and the gene pyramids Co-42+Co-5+Co-9 and Co-42+Co-5 had the lowest severity scores. Gene Co-43 conferred resistance to race 352 and weak resistance to race 713; whereas gene Co-9 conferred resistance to race 352. Co-43+Co-9 gene pyramid showed resistance only to race 352. The Co-42 and Co-5 genes conferred resistance to all the four races 352, 713, 767 and 2047. The single gene Co-42 was not significantly different from the pyramids Co-42+Co-5+Co-9 and Co-42+Co-5 (P
 
Date 2021-01-16
2022-12-06T09:15:33Z
2022-12-06T09:15:33Z
 
Type Journal Article
 
Identifier Kiryowa, M.; Nkalubo, S.; Mukankusi, C.; Male, A.; Gibson, P.; Tukamuhabwa, P.; Rubaihayo, P. (2021) Effectiveness of pyramided genes in conferring resistance to anthracnose disease in common bean populations. Journal of Plant Breeding and Crop Science 13(1) 13 p. ISSN: 2006-9758
2006-9758
https://hdl.handle.net/10568/125791
https://doi.org/10.5897/JPBCS2019.0808
 
Rights CC-BY-4.0
Open Access
 
Format p. 1-13
application/pdf
 
Publisher Academic Journals