Mealybug chromosome cycle as a paradigm of epigenetics.

Genetics Research International
G Prantera, S Bongiorni

Abstract

Recently, epigenetics has had an ever-growing impact on research not only for its intrinsic interest but also because it has been implied in biological phenomena, such as tumor emergence and progression. The first epigenetic phenomenon to be described in the early 1960s was chromosome imprinting in some insect species (sciaridae and coccoideae). Here, we discuss recent experimental results to dissect the phenomenon of imprinted facultative heterochromatinization in Lecanoid coccids (mealybugs). In these insect species, the entire paternally derived haploid chromosome set becomes heterochromatic during embryogenesis in males. We describe the role of known epigenetic marks, such as DNA methylation and histone modifications, in this phenomenon. We then discuss the models proposed to explain the noncanonical chromosome cycle of these species.

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Citations

Aug 6, 2014·Die Naturwissenschaften·Hofit Kol-MaimonMurad Ghanim
Dec 22, 2017·Medical and Veterinary Entomology·A G DE LA FiliaL Ross
Jul 4, 2018·Environmental Microbiology·Younès DelleroAlberto Amato
Feb 19, 2019·Journal of Evolutionary Biology·Andrés G de la FiliaLaura Ross
Jul 1, 2020·Genome Biology and Evolution·Hollie MarshallEamonn B Mallon
Mar 12, 2021·Molecular Biology and Evolution·Andrés G de la FiliaLaura Ross
Sep 21, 2021·Biological Reviews of the Cambridge Philosophical Society·Dmitrij Dedukh, Alla Krasikova

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Methods Mentioned

BETA
RIP
chromosomal aberrations
acetylation
dissection

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