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An Overview of the Function and Maintenance of Sexual Reproduction in Dikaryotic Fungi
Different strategies used among the Dikarya, both saprophytic and pathogenic fungi, are explored, and differences between pathogens of mammals and pathogens of plants are highlighted, providing context for selective pressures acting on this interesting group of fungi.
Coordinate regulation of Ustilago maydis ammonium transporters and genes involved in mating and pathogenicity.
Ustilago maydis phosphodiesterases play a role in the dimorphic switch and in pathogenicity.
Data support a role for the phosphodiesterases UmP de1 and UmPde2 in regulating the U. maydis cAMP-dependent PKA pathway through modulation of cAMP levels, thus affecting dimorphic growth and pathogenicity.
The use of immunotherapy to enhance tumor rejection immunity in leukemic (L2C) guinea pigs following remission induction with MeCCNU.
Hungry for Sex: Differential Roles for Ustilago maydis b Locus Components in Haploid Cells vis à vis Nutritional Availability
It is shown that bE and bW are expressed differentially in haploid cells starved for ammonium, which elicits different effects on transcription of mating and pathogenic-related genes and, importantly, on the degree of pathogenic development in host plants.
Regulation of haplid phenotypes in Ustilago maydis by ammonium transporters and components of the b mating locus.
- R. M. Wallen
Tempo of degeneration across independently evolved non-recombining regions
- Fantin Carpentier, R. C. Rodríguez de la Vega, M. Perlin, R. M. Wallen, M. Hood, T. Giraud
- 20 July 2021
This is the first study to disentangle effects of reduced selection efficacy from GC-biased gene conversion in the evolution of optimal codon usage to quantify the tempo of degeneration in non-recombining regions, leveraging on multiple independent recombination suppression events.
Of mice and sigma: Conferred antibiotic resistance in the Salmonella enterica serovar Typhimurium murine model
- R. M. Wallen
This study attempts to model the relationship within the host of Salmonella enterica serovar Typhimurium and demonstrates that co-culture with ampicillin resistant strains of Escherichia coli is able to provide protection for sensitive S. TyphIMurium.
Tempo of Degeneration Across Independently Evolved Nonrecombining Regions
- Fantin Carpentier, R. C. Rodríguez de la Vega, T. Giraud
- BiologyMolecular biology and evolution
- 24 March 2022
A method for disentangling effects of reduced selection efficacy from GC-biased gene conversion in the evolution of codon usage is developed and the tempo of degeneration in nonrecombining regions is quantified, important for knowledge on genomic evolution and on the maintenance of regions without recombination.