Resistance of Phytophthora infestans in three Solanum nigrum F3 families

Jadwiga Śliwka


Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland (Poland)

Iga Tomczyńska


Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland (Poland)

Marcin Chmielarz


Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland (Poland)

Emil Stefańczyk


Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland (Poland)

Renata Lebecka


Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland (Poland)

Ewa Zimnoch-Guzowska


Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland (Poland)


Abstract

Solanum nigrum is a self-pollinating, hexaploid weed and one of a few Solanaceae species native to Europe. It used to be described as a non-host  for Phytophthora infestans. However, now it is known that, like its distant relatives: potato (Solanum tuberosum L.) and tomato (Solanum lycopersicum L.), S. nigrum can suffer from potato late blight caused by this pathogen. Both susceptible and resistant S. nigrum genotypes  have been previously identified and inheritance of resistance originating from one accession has been described based on population of F2 plants and 15 F3 lines. The goal of this study was to evaluate resistance of three families of F3 lines, originating from crosses between  a susceptible and three different  resistant  S. nigrum accessions  followed  by two self-pollinations.  Parental  acces- sions were tested for the spectrum of late blight resistance against 48 P. infestans isolates. The three families consisted of 106, 96 and 115 F3 lines, respectively, and from each line 20 plants were tested for resistance to P. infestans. Laboratory  detached leaf assays were  performed in two dates and two replications  of three leaves  each.  Segregation  of the trait  within the line  allowed  us  to distinguish hetero- and homozygous lines. In one F3 family, the ratio of resistant homozygotes: heterozygotes: susceptible  homozygotes  was 1:2:1, indicating  that  a single  gene is  most likely  underlying  the late blight resistance in this case. In the other two, observed segregations of the trait significantly deviated from this model suggesting more complex inheritance patterns.


Keywords:

black nightshade, inheritance, late blight, potato, Solanum tuberosum, virulence

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Published
2012-08-20

Cited by

Śliwka, J. ., Tomczyńska, I. ., Chmielarz, M. ., Stefańczyk, E. ., Lebecka, R. ., & Zimnoch-Guzowska, E. . (2012). Resistance of Phytophthora infestans in three Solanum nigrum F3 families. Plant Breeding and Seed Science, 66, 63–73. Retrieved from http://ojs.ihar.edu.pl/index.php/pbss/article/view/318

Authors

Jadwiga Śliwka 

Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland Poland

Authors

Iga Tomczyńska 

Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland Poland

Authors

Marcin Chmielarz 

Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland Poland

Authors

Emil Stefańczyk 

Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland Poland

Authors

Renata Lebecka 

Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland Poland

Authors

Ewa Zimnoch-Guzowska 

Plant Breeding and Acclimatization Institute-National Research Institute, Młochów Research Centre, Platanowa 19, 05-831 Młochów, Poland Poland

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