Chapter title |
Population biology of fungal plant pathogens.
|
---|---|
Chapter number | 20 |
Book title |
Plant Fungal Pathogens
|
Published in |
Methods in molecular biology, December 2011
|
DOI | 10.1007/978-1-61779-501-5_20 |
Pubmed ID | |
Book ISBNs |
978-1-61779-500-8, 978-1-61779-501-5
|
Authors |
Atallah ZK, Subbarao KV, Zahi K. Atallah, Krishna V. Subbarao |
Abstract |
Studies of the population genetics of fungal and oomycetous phytopathogens are essential to clarifying the disease epidemiology and devising management strategies. Factors commonly associated with higher organisms such as migration, natural selection, or recombination, are critical for the building of a clearer picture of the pathogen in the landscape. In this chapter, we focus on a limited number of experimental and analytical methods that are commonly applied in population genetics. At first, we present different types of qualitative and quantitative traits that could be identified morphologically (phenotype). Subsequently, we describe several molecular methods based on dominant and codominant markers, and we provide our assessment of the advantages and shortfalls of these methods. Third, we discuss various analytical methods, which include phylogenies, summary statistics as well as coalescent-based methods, and we elaborate on the benefits associated with each approach. Last, we develop a case study in which we investigate the population structure of the fungal phytopathogen Verticillium dahliae in coastal California, and assess the hypotheses of transcontinental gene flow and recombination in a fungus that is described as asexual. |
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