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Can I read Genetic variation for tolerance to the downy mildew pathogen Peronospora variabilis in genetic resources of quinoa (Chenopodium quinoa) on EtoBox?
Genetic variation for tolerance to the downy mildew pathogen Peronospora variabilis in genetic resources of quinoa (Chenopodium quinoa) by Colque-Little, Carla (author);Abondano, Miguel Correa (author);Lund, Ole Søgaard (author);Amby, Daniel Buchvaldt (author);Piepho, Hans-Peter (author);Andreasen, Christian (author);Schmöckel, Sandra (author);Schmid, Karl (author) is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Genetic variation for tolerance to the downy mildew pathogen Peronospora variabilis in genetic resources of quinoa (Chenopodium quinoa) about?
## Abstract ## Background Quinoa (Chenopodium quinoa Willd.) is an ancient grain crop that is tolerant to abiotic stress and has favorable nutritional properties. Downy mildew is the main disease of quinoa and is caused by infections of the biotrophic oomycete Peronospora variabilis Gaüm. Since the disease causes major yield losses, identifying sources of downy mildew tolerance in genetic resources and understanding its genetic basis are important goals in quinoa breeding. ## Results We infected 132 South American genotypes, three Danish cultivars and the weedy relative C. album with a single isolate of P. variabilis under greenhouse conditions and observed a large variation in disease traits like severity of infection, which ranged from 5 to 83%. Linear mixed models revealed a significant effect of genotypes on disease traits with high heritabilities (0.72 to 0.81). Factors like altitude at site of origin or seed saponin content did not correlate with mildew tolerance, but stomatal width was weakly correlated with severity of infection. Despite the strong genotypic effects on mildew tolerance, genome-wide association mapping with 88 genotypes failed to identify significant marker-
Who reads Genetic variation for tolerance to the downy mildew pathogen Peronospora variabilis in genetic resources of quinoa (Chenopodium quinoa)?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Colque-Little, Carla (author);Abondano, Miguel Correa (author);Lund, Ole Søgaard (author);Amby, Daniel Buchvaldt (author);Piepho, Hans-Peter (author);Andreasen, Christian (author);Schmöckel, Sandra (author);Schmid, Karl (author)
- Publisher
- Springer Science and Business Media LLC
- Published
- 2021
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)