RNA interference in formation of the somatic genome of ciliates Paramecium and Tetrahymena

Irina V. Nekrasova; Alexey A. Potekhin

doi:10.17816/ecogen1645-22

Ecological Genetics ›› 2018, Vol. 16 ›› Issue (4) : 5 -22. DOI: 10.17816/ecogen1645-22

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RNA interference in formation of the somatic genome of ciliates Paramecium and Tetrahymena

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Abstract

Ciliates are the model of choice to study RNA interference, the mechanism playing key role in biology of these protists. The genome scanning processes of two ciliates, Tetrahymena and Paramecium (Oligohymenophorea), leading to formation of the somatic genome from the chromosomes of the generative nucleus are compared in the review. Matching of several simulta neously present in one cell genomes is mediated by small RNAs and results in precise reproduction of maternal somatic genome in the sexual progeny.

Keywords

ciliates / RNA interference / small RNAs / macronucleus / chromatin diminution / transposon expansion / gene silencing

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Irina V. Nekrasova, Alexey A. Potekhin. RNA interference in formation of the somatic genome of ciliates Paramecium and Tetrahymena. Ecological Genetics, 2018, 16(4): 5-22 DOI:10.17816/ecogen1645-22