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- Title
Identification of resistance sources in common bean (Phaseolus vulgaris) genotypes from Turkey and the reactions of some promising genotypes to bean anthracnose (Colletotrichum lindemuthianum).
- Authors
Palacıoğlu, Gülsüm; Yeken, Mehmet Zahit; Kantar, Faik; Çancı, Hüseyin; Çiftçi, Vahdettin; Bayraktar, Harun; Özer, Göksel
- Abstract
Context: Among biotic factors, bean anthracnose caused by Colletotrichum lindemuthianum (Sacc. & Magnus) Briosi & Cavara is one of the most destructive diseases of common bean (Phaseolus vulgaris L.). Resistance in common bean genotypes is controlled by anthracnose resistance loci (designated Co). Aims: The objective of this study was to evaluate the presence of Co resistance genes in common bean genotypes from Turkey and to examine promising genotypes as candidates for parent plants in breeding studies. Methods: The presence of Co resistance genes in 693 common bean genotypes from 35 provinces of Turkey was determined by 12 SCAR (sequence characterised amplified region), RAPD (random amplified polymorphic DNA), STS (sequence-tagged site) and CAPS (cleaved amplified polymorphic sequence) markers. The disease reaction of 40 agronomically promising genotypes to different pathogen isolates was evaluated in a pot study. Key results: The results indicated the presence of Co-1 , Co-1 4 , Co-1 5 , Co-2 , Co-3 3 , Co-4 , Co-4 2 , Co-6 , Co - 10 , Co - 11 and Co - 13 resistance genes, alone or in combination; Co - 5 was not detected in any of the genotypes. Among the genotypes, Co-1 5 was the most frequent resistance source, followed by Co-4 , Co-6 and Co-11 , respectively. Common bean genotypes carrying Co-1 4 , Co-2 , Co-3 3 , Co-11 and Co-13 have been identified for the first time in Turkish germplasm. Five genotypes carrying the various combinations of Co-1 , Co-1 5 , Co-4 , Co-6 , Co-10 , Co-11 and Co-13 were resistant to all isolates in pathogenicity tests. Conclusions: This study is the most comprehensive to date on Co genes linked to the resistance of common bean genotypes throughout Turkey and provides an important gene pool for breeding studies into bean anthracnose. Resistant genotypes identified will be useful as parent plants in resistance breeding studies. Implications: Resistance genotypes carrying different Co genes to bean anthracnose will contribute significantly to the disease management strategy. Host plant resistance is the most economical and environmentally friendly method of protection against plant disease. This study examined Co genes in Turkish common bean genotypes linked to resistance to bean anthracnose. The study provides an important gene pool for breeding studies and identifies genotypes resistant to the pathogen.
- Subjects
TURKEY; COMMON bean; RAPD technique; PLANT breeding; GENOTYPES; ANTHRACNOSE; BEANS
- Publication
Crop & Pasture Science, 2022, Vol 73, Issue 10, p1168
- ISSN
1836-0947
- Publication type
Article
- DOI
10.1071/CP21704