The genetics of phenotypic plasticity in nematode feeding structures. Issue 3 (15th March 2017)

• Record Type: Journal Article
• Authors: Sommer, Ralf J.; Dardiry, Mohannad; Lenuzzi, Masa; Namdeo, Suryesh; Renahan, Tess; Sieriebriennikov, Bogdan; Werner, Michael S.
• Is Part Of: Open biology. Volume 7:Issue 3(2017)
• Publication Date: 2017-03-15
• Subjects: phenotypic plasticity -- Pristionchus pacificus -- switch genes -- nuclear hormone receptors -- epigenetics; Biology -- Periodicals; 570
• DOI: 10.1098/rsob.160332
• Languages: English
• ISSNs: 2046-2441

Abstract

Abstract : Abstract : Phenotypic plasticity has been proposed as an ecological and evolutionary concept. Ecologically, it can help study how genes and the environment interact to produce robust phenotypes. Evolutionarily, as a facilitator it might contribute to phenotypic novelty and diversification. However, the discussion of phenotypic plasticity remains contentious in parts due to the absence of model systems and rigorous genetic studies. Here, we summarize recent work on the nematode Pristionchus pacificus, which exhibits a feeding plasticity allowing predatory or bacteriovorous feeding. We show feeding plasticity to be controlled by developmental switch genes that are themselves under epigenetic control. Phylogenetic and comparative studies support phenotypic plasticity and its role as a facilitator of morphological novelty and diversity.