Inside the Tangled Bank of Arthropods

 

We unravel the molecular-genetic mechanisms of hybrid dysfunction, herbivory, and pesticide resistance. One of the major research lines dissects the mechanistic underpinnings of symbiont-host interactions. We use interdisciplinary approaches to study the molecular architecture of these complex traits.

 

 

 

August 2024 Update

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>>> Lennert Beele and Siebe van Wunnik recently started their PhD projects. They will study the mechanisms and community consequences of herbivore-plant interactions. Excited to dissect these interactions both in the molecular lab as in the field!

 

>>> Happy to announce that I have been selected as an Invitational Fellow of JSPS (Japan Society for the Promotion of Science). I will be hosted by Yohsuke Tagami and I will visit several research institutes in Japan, including Shizuoka University.

June 2024 Update

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>>> Together with Thomas Parmentier, we published a first chapter in our study of the causes and consequences of granivory in silverfish. CLICK HERE.
We collected silverfish species that interact differently with ants. Our collection of myrmecophilous silverfish included obligate generalists and specialists.
To study their feeding ecologies, we combined stable isotope profiling, feeding assays, phylogenetic reconstruction, and microbiome analyses.
We show that the social interactions of Messor-specialized silverfish shape their trophic niche, suggestive of a granivorous lifestyle. Controlled feeding assays confirm that these silverfish can feed on plant seeds.
We further uncover that these Messor-specialized silverfish carry different bacterial symbionts compared to congeneric silverfish with a broad ant host range.
Here, Weissella bacteria display a remarkable association with a granivorous lifestyle.

>>> Lennert, Tessa, and Kobe recently submitted their master dissertations and are about to defend.

>>> We were visited by Steven Van Belleghem and his group, a first of many mutual lab days!

 

 

 

Autumn 2023 Update

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>>> Our study of the underlying mechanisms and relevance of Wolbachia-induced sex allocation distortion (Sd) in haplodiploids has been published this summer in Heredity! GO TO ARTICLE! Sd is an often neglected symbiont-mediated reproductive phenotype in haplodiploids. We show that Wolbachia-mediated Sd is driven by increasing egg provisioning, facilitating egg fertilization and subsequent female development. This physiological effect is contingent on the female host genotype and can cause larger adult offspring. Our simulations show that Sd is able to remove the threshold for Wolbachia invasion under certain realistic conditions.

>>> Presented the group's ongoing work at ECE 2023 (Greece).
 
>>> Lennert and Kobe started their labwork for their master dissertation. Lennert is dissecting the role of ecology in postzygotic isolation in Tetranychus mites, while Kobe is studying the microbial community of ants and myrmecophilous beetles.