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Todd J Widhelm

Explore the profile of Todd J Widhelm including associated specialties, affiliations and a list of published articles. Areas
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Articles 12
Citations 733
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Recent Articles
1.
Coca L, Lumbsch H, Mercado-Diaz J, Widhelm T, Goffinet B, Kirika P, et al.
Mol Phylogenet Evol . 2025 Feb; 206:108312. PMID: 39993490
Coccocarpia Pers. currently comprises 28 mostly broadly distributed tropical species of fungi associated with cyanobacteria. Three of these taxa, C. erythroxyli, C. palmicola, and C. pellita, are presumably pantropical to...
2.
Mercado-Diaz J, Lucking R, Moncada B, St E Campbell K, Delnatte C, Familia L, et al.
Mol Phylogenet Evol . 2023 May; 186:107830. PMID: 37247703
Phylogenetic approaches to macroevolution have provided unique insight into evolutionary relationships, ancestral ranges, and diversification patterns for many taxa. Similar frameworks have also been developed to assess how environmental and/or...
3.
Grewe F, Ametrano C, Widhelm T, Leavitt S, Distefano I, Polyiam W, et al.
IMA Fungus . 2020 Dec; 11(1):27. PMID: 33317627
Parmeliaceae is the largest family of lichen-forming fungi with a worldwide distribution. We used a target enrichment data set and a qualitative selection method for 250 out of 350 genes...
4.
Lindgren H, Moncada B, Lucking R, Magain N, Simon A, Goffinet B, et al.
Mol Phylogenet Evol . 2020 May; 150:106860. PMID: 32473336
Species in the fungal genus Sticta form symbiotic associations primarily with either green algae or cyanobacteria, but tripartite associations or photosymbiodemes involving both types of photobionts occur in some species....
5.
Sadykov M, Windham I, Widhelm T, Yajjala V, Watson S, Endres J, et al.
J Bacteriol . 2019 Sep; 201(23). PMID: 31501288
The death and lysis of a subpopulation of cells during biofilm development benefit the whole bacterial population through the release of an important component of the biofilm matrix, extracellular DNA....
6.
Widhelm T, Grewe F, Huang J, Mercado-Diaz J, Goffinet B, Lucking R, et al.
Sci Rep . 2019 Jun; 9(1):8968. PMID: 31222061
In the age of next-generation sequencing, the number of loci available for phylogenetic analyses has increased by orders of magnitude. But despite this dramatic increase in the amount of data,...
7.
Widhelm T, Bertoletti F, Asztalos M, Mercado-Diaz J, Huang J, Moncada B, et al.
Mol Phylogenet Evol . 2018 Apr; 126:58-73. PMID: 29656104
A major challenge to evolutionary biologists is to understand how biodiversity is distributed through space and time and across the tree of life. Diversification of organisms is influenced by many...
8.
Sadykov M, Ahn J, Widhelm T, Eckrich V, Endres J, Driks A, et al.
Mol Microbiol . 2017 Mar; 104(5):793-803. PMID: 28299860
Numerous bacteria accumulate poly(3-hydroxybutyrate) (PHB) as an intracellular reservoir of carbon and energy in response to imbalanced nutritional conditions. In Bacillus spp., where PHB biosynthesis precedes the formation of the...
9.
Yajjala V, Widhelm T, Endres J, Fey P, Bayles K
Methods Mol Biol . 2015 Feb; 1373:103-10. PMID: 25682373
Transposon mutagenesis is a genetic process that involves the random insertion of transposons into a genome resulting in the disruption of function of the genes in which they insert. Identification...
10.
Thomas V, Sadykov M, Chaudhari S, Jones J, Endres J, Widhelm T, et al.
PLoS Pathog . 2014 Jun; 10(6):e1004205. PMID: 24945831
Similar to developmental programs in eukaryotes, the death of a subpopulation of cells is thought to benefit bacterial biofilm development. However mechanisms that mediate a tight control over cell death...