Abstract:This article examines the development of strain-specific sequence-characterized amplified region (SCAR) molecular markers in two strains of Beauveria bassiana and Metarhizium anisopliae, as well as their use for tracking pathogens in coinfected insect pests. The markers were designed based on the polymorphic introns of the large subunit region of the ribosomal DNA. These markers were used to distinguish between two strains of Beauveria (B55 and B51) and two strains of Metarhizium (M20 and M48). The entomopatho… Show more
“…). Lower dose can cause even highly competitive genotypes to lose their advantage (Ben‐Ami & Routtu ; Ummidi & Vadlamani ), possibly because they are more easily overcome by the immune system or competitors when in small numbers. Testing our model for a wide range of parameter values revealed that the predictions are robust to different allogrooming efficiencies (Fig.…”
Coinfections with multiple pathogens can result in complex within-host dynamics affecting virulence and transmission. While multiple infections are intensively studied in solitary hosts, it is so far unresolved how social host interactions interfere with pathogen competition, and if this depends on coinfection diversity. We studied how the collective disease defences of antstheir social immunityinfluence pathogen competition in coinfections of same or different fungal pathogen species. Social immunity reduced virulence for all pathogen combinations, but interfered with spore production only in different-species coinfections. Here, it decreased overall pathogen sporulation success while increasing co-sporulation on individual cadavers and maintaining a higher pathogen diversity at the community level. Mathematical modelling revealed that host sanitary care alone can modulate competitive outcomes between pathogens, giving advantage to fast-germinating, thus less grooming-sensitive ones. Host social interactions can hence modulate infection dynamics in coinfected group members, thereby altering pathogen communities at the host level and population level.
“…). Lower dose can cause even highly competitive genotypes to lose their advantage (Ben‐Ami & Routtu ; Ummidi & Vadlamani ), possibly because they are more easily overcome by the immune system or competitors when in small numbers. Testing our model for a wide range of parameter values revealed that the predictions are robust to different allogrooming efficiencies (Fig.…”
Coinfections with multiple pathogens can result in complex within-host dynamics affecting virulence and transmission. While multiple infections are intensively studied in solitary hosts, it is so far unresolved how social host interactions interfere with pathogen competition, and if this depends on coinfection diversity. We studied how the collective disease defences of antstheir social immunityinfluence pathogen competition in coinfections of same or different fungal pathogen species. Social immunity reduced virulence for all pathogen combinations, but interfered with spore production only in different-species coinfections. Here, it decreased overall pathogen sporulation success while increasing co-sporulation on individual cadavers and maintaining a higher pathogen diversity at the community level. Mathematical modelling revealed that host sanitary care alone can modulate competitive outcomes between pathogens, giving advantage to fast-germinating, thus less grooming-sensitive ones. Host social interactions can hence modulate infection dynamics in coinfected group members, thereby altering pathogen communities at the host level and population level.
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