Genome-wide patterns of segregation and linkage disequilibrium: The construction of a linkage genetic map of the poplar rust fungus Melampsora larici-populina
- Author: mycolabadmin
- 2014-09-10
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Summary
Background
The poplar rust fungus Melampsora larici-populina causes significant yield reduction and economic losses in commercial poplar plantations. After decades of breeding for qualitative resistance and subsequent breakdown of resistance genes, breeders now focus on quantitative resistance, perceived to be more durable. However, quantitative resistance can also be challenged by increased pathogen aggressiveness. Understanding the genetic architecture of aggressiveness traits is therefore crucial for developing durable resistance.
Objective
To construct a genetic linkage map for M. larici-populina to enable mapping of quantitative trait loci related to aggressiveness. This required generating a large progeny through selfing of the reference strain 98AG31 on larch plants and validating the progeny’s meiotic origin through segregation analysis.
Results
Conclusion
- Published in:Frontiers in Plant Science,
- Study Type:Genetic Mapping Study,
- Source: 10.3389/fpls.2014.00454