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Armin P Moczek on Muck Rack

Armin P Moczek

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Articles

A Conserved Somatic Sex Determination Cascade Instructs Trait‐Specific Sexual Dimorphism in Horned Dung Beetles

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By London Mitchell, Armin P Moczek, Erica M Nadolski
| Wiley Online Library Verified
1 Introduction Sexual dimorphism, or the presence of trait differences between the sexes, is widespread across eukaryotes and represents one of the most striking dimensions of phenotypic variation both within and across species. Sexual dimorphisms are among the fastest evolving traits and as such constitute the trait class most often used to morphologically distinguish closely related species.
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A conserved somatic sex determination cascade instructs trait-specific sexual dimorphism in horned dung beetles

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By London Mitchell, Armin P Moczek, Erica M Nadolski
| BioRxiv
Abstract Sex-specific trait expression represents a striking dimension of morphological variation within and across species. The mechanisms instructing sex-specific organ development have been well studied in a small number of insect model systems, suggesting striking conservation in some parts of the somatic sex determination pathway while hinting at possible evolutionary lability in others.
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Divergent Hox cluster collinearity in horned beetles reveals adult head patterning function of labial

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By Erica M Nadolski, Isabel Manley, Armin P Moczek, Sukhmani Gill
| BioRxiv
Abstract Hox genes play critical roles in specifying the regionalization of the body axis across metazoa, with the exception of the anterior dorsal head of bilaterian animals, which instead is instructed by a deeply conserved set of non-Hox regulators. The anterior dorsal head is also a hot spot of evolutionary diversification, raising the question as to the developmental-genetic underpinnings of such innovation.
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