Genetic Interactions in Various Environmental Conditions in <i>Caenorhabditis elegans</i>

Although it is well known that epistasis plays an important role in many evolutionary processes (e.g., speciation, evolution of sex), our knowledge on the frequency and prevalent sign of epistatic interactions is mainly limited to unicellular organisms or cell cultures of multicellular organisms. Th...

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Main Authors: Katarzyna Toch, Mateusz Buczek, Marta K. Labocha
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/14/11/2080
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author Katarzyna Toch
Mateusz Buczek
Marta K. Labocha
author_facet Katarzyna Toch
Mateusz Buczek
Marta K. Labocha
author_sort Katarzyna Toch
collection DOAJ
description Although it is well known that epistasis plays an important role in many evolutionary processes (e.g., speciation, evolution of sex), our knowledge on the frequency and prevalent sign of epistatic interactions is mainly limited to unicellular organisms or cell cultures of multicellular organisms. This is even more pronounced in regard to how the environment can influence genetic interactions. To broaden our knowledge in that respect we studied gene–gene interactions in a whole multicellular organism, <i>Caenorhabditis elegans</i>. We screened over one thousand gene interactions, each one in standard laboratory conditions, and under three different stressors: heat shock, oxidative stress, and genotoxic stress. Depending on the condition, between 7% and 22% of gene pairs showed significant genetic interactions and an overall sign of epistasis changed depending on the condition. Sign epistasis was quite common, but reciprocal sign epistasis was extremally rare. One interaction was common to all conditions, whereas 78% of interactions were specific to only one environment. Although epistatic interactions are quite common, their impact on evolutionary processes will strongly depend on environmental factors.
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spelling doaj.art-5e41f7885f3741fca5a97c9be0c056e22023-11-24T14:44:08ZengMDPI AGGenes2073-44252023-11-011411208010.3390/genes14112080Genetic Interactions in Various Environmental Conditions in <i>Caenorhabditis elegans</i>Katarzyna Toch0Mateusz Buczek1Marta K. Labocha2Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Ul. Gronostajowa 7, 30-387 Krakow, PolandInstitute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Ul. Gronostajowa 7, 30-387 Krakow, PolandInstitute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Ul. Gronostajowa 7, 30-387 Krakow, PolandAlthough it is well known that epistasis plays an important role in many evolutionary processes (e.g., speciation, evolution of sex), our knowledge on the frequency and prevalent sign of epistatic interactions is mainly limited to unicellular organisms or cell cultures of multicellular organisms. This is even more pronounced in regard to how the environment can influence genetic interactions. To broaden our knowledge in that respect we studied gene–gene interactions in a whole multicellular organism, <i>Caenorhabditis elegans</i>. We screened over one thousand gene interactions, each one in standard laboratory conditions, and under three different stressors: heat shock, oxidative stress, and genotoxic stress. Depending on the condition, between 7% and 22% of gene pairs showed significant genetic interactions and an overall sign of epistasis changed depending on the condition. Sign epistasis was quite common, but reciprocal sign epistasis was extremally rare. One interaction was common to all conditions, whereas 78% of interactions were specific to only one environment. Although epistatic interactions are quite common, their impact on evolutionary processes will strongly depend on environmental factors.https://www.mdpi.com/2073-4425/14/11/2080genetic interactionsgene networksenvironmental stressepistasismulticellular
spellingShingle Katarzyna Toch
Mateusz Buczek
Marta K. Labocha
Genetic Interactions in Various Environmental Conditions in <i>Caenorhabditis elegans</i>
Genes
genetic interactions
gene networks
environmental stress
epistasis
multicellular
title Genetic Interactions in Various Environmental Conditions in <i>Caenorhabditis elegans</i>
title_full Genetic Interactions in Various Environmental Conditions in <i>Caenorhabditis elegans</i>
title_fullStr Genetic Interactions in Various Environmental Conditions in <i>Caenorhabditis elegans</i>
title_full_unstemmed Genetic Interactions in Various Environmental Conditions in <i>Caenorhabditis elegans</i>
title_short Genetic Interactions in Various Environmental Conditions in <i>Caenorhabditis elegans</i>
title_sort genetic interactions in various environmental conditions in i caenorhabditis elegans i
topic genetic interactions
gene networks
environmental stress
epistasis
multicellular
url https://www.mdpi.com/2073-4425/14/11/2080
work_keys_str_mv AT katarzynatoch geneticinteractionsinvariousenvironmentalconditionsinicaenorhabditiselegansi
AT mateuszbuczek geneticinteractionsinvariousenvironmentalconditionsinicaenorhabditiselegansi
AT martaklabocha geneticinteractionsinvariousenvironmentalconditionsinicaenorhabditiselegansi