Apr 1, 2020

Phylogenetic, geographic and ecological distribution of a green-brown polymorphisms in European Orthopterans

BioRxiv : the Preprint Server for Biology
Shensi ShenAlfonso Jaramillo


The green-brown polymorphism among polyneopteran insects represents one of the most penetrant color polymorphism in any group of organisms. Yet systematic overviews are lacking. I here present analyses of the phylogenetic, geographic and habitat distribution of the green-brown polymorphisms across the complete European Orthopteran fauna. Overall, 30% of European Orthopterans are green-brown polymorphic (36% when excluding crickets and cave crickets). Polymorphic species are scattered across the entire phylogenetic tree, including roughly equal proportions of Ensifera and Caelifera. Some taxonomic groups, however, include only brown species. Polymorphic species occur more frequently in clades that contain green species than in those without green species. The relative abundance of color morphs in polymorphic species is skewed towards green, and in particular rare/exceptional brown morphs are more common in predominantly green species than rare/exceptional green morphs in predominantly brown species. Polymorphic species are particularly common in moist to mesic grasslands. Alpine and arboreal habitats also host high proportions of polymorphic species, while dry, open, rocky and cave habitats as well as nocturnal lifestyles are do...Continue Reading

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Mentioned in this Paper

Small Nuclear RNA
Signaling Cascade
RNA, Untranslated
Catalytic RNA
Strand Displacement Amplification
Gene Expression
Ribozyme Location
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Signal Transducer Activity

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