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Association mapping, transcriptomics, and transient expression identify candidate genes mediating plant-pathogen interactions in a tree.

A new interesting article has been published in Proc Natl Acad Sci U S A. 2018 Nov 6;115(45):11573-11578. doi: 10.1073/pnas.1804428115. Epub 2018 Oct 18. and titled:

Association mapping, transcriptomics, and transient expression identify candidate genes mediating plant-pathogen interactions in a tree.

Authors of this article are:

Muchero W, Sondreli KL, Chen JG, Urbanowicz BR, Zhang J, Singan V, Yang Y, Brueggeman RS, Franco-Coronado J, Abraham N, Yang JY, Moremen KW, Weisberg AJ, Chang JH, Lindquist E, Barry K, Ranjan P, Jawdy S, Schmutz J, Tuskan GA, LeBoldus JM.

A summary of the article is shown below:

Invasive microbes causing diseases such as sudden oak death negatively affect ecosystems and economies around the world. The deployment of resistant genotypes for combating introduced diseases typically relies on breeding programs that can take decades to complete. To demonstrate how this process can be accelerated, we employed a genome-wide association mapping of ca 1,000 resequenced Populus trichocarpa trees individually challenged with Sphaerulina musiva, an invasive fungal pathogen. Among significant associations, three loci associated with resistance were identified and predicted to encode one putative membrane-bound L-type receptor-like kinase and two receptor-like proteins. A susceptibility-associated locus was predicted to encode a putative G-type D-mannose-binding receptor-like kinase. Multiple lines of evidence, including allele analysis, transcriptomics, binding assays, and overexpression, support the hypothesized function of these candidate genes in the P. trichocarpa response to S. musiva.

Check out the article’s website on Pubmed for more information:



This article is a good source of information and a good way to become familiar with topics such as:

Populus trichocarpa;association mapping;disease resistance;invasive disease;septoria canker

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