Territorial Behavior and Social Stability in the Mouse Require Correct Expression of Imprinted Cdkn1c
Genomic imprinting, the epigenetic process by which transcription occurs from a single parental allele, is believed to influence social behaviors in mammals. An important social behavior is group living, which is enriched in Eutherian mammals relative to monotremes and marsupials. Group living facil...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-02-01
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| Series: | Frontiers in Behavioral Neuroscience |
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| Online Access: | http://journal.frontiersin.org/article/10.3389/fnbeh.2018.00028/full |
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| author | Gráinne I. McNamara Rosalind M. John Anthony R. Isles |
| author_facet | Gráinne I. McNamara Rosalind M. John Anthony R. Isles |
| author_sort | Gráinne I. McNamara |
| collection | DOAJ |
| description | Genomic imprinting, the epigenetic process by which transcription occurs from a single parental allele, is believed to influence social behaviors in mammals. An important social behavior is group living, which is enriched in Eutherian mammals relative to monotremes and marsupials. Group living facilitates resource acquisition, defense of territory and co-care of young, but requires a stable social group with complex inter-individual relationships. Co-occurring with increased group living in Eutherians is an increase in the number of imprinted loci, including that spanning the maternally expressed Cdkn1c. Using a ‘loss-of-imprinting’ model of Cdkn1c (Cdkn1cBACx1), we demonstrated that twofold over expression of Cdkn1c results in abnormal social behaviors. Although, our previous work indicated that male Cdkn1cBACx1 mice were more dominant as measured by tube test encounters with unfamiliar wild-type (WT) males. Building upon this work, using more ecologically relevant assessments of social dominance, indicated that within their normal social group, Cdkn1cBACx1 mice did not occupy higher ranking positions. Nevertheless, we find that presence of Cdkn1cBACx1 animals within a group leads to instability of the normal social hierarchy, as indicated by greater variability in social rank within the group over time and an increase in territorial behavior in WT cage-mates. Consequently, these abnormal behaviors led to an increased incidence of fighting and wounding within the group. Taken together these data indicate that normal expression of Cdkn1c is required for maintaining stability of the social group and suggests that the acquisition of monoallelic expression of Cdkn1c may have enhanced social behavior in Eutherian mammals to facilitate group living. |
| first_indexed | 2024-04-13T13:57:02Z |
| format | Article |
| id | doaj.art-dc2d260a7170454e9246ffd69148f1da |
| institution | Directory Open Access Journal |
| issn | 1662-5153 |
| language | English |
| last_indexed | 2024-04-13T13:57:02Z |
| publishDate | 2018-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Behavioral Neuroscience |
| spelling | doaj.art-dc2d260a7170454e9246ffd69148f1da2022-12-22T02:44:10ZengFrontiers Media S.A.Frontiers in Behavioral Neuroscience1662-51532018-02-011210.3389/fnbeh.2018.00028309177Territorial Behavior and Social Stability in the Mouse Require Correct Expression of Imprinted Cdkn1cGráinne I. McNamara0Rosalind M. John1Anthony R. Isles2Behavioural Genetics Group, MRC Centre for Neuropsychiatric Genetics and Genomics, Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United KingdomSchool of Biosciences, Cardiff University, Cardiff, United KingdomBehavioural Genetics Group, MRC Centre for Neuropsychiatric Genetics and Genomics, Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United KingdomGenomic imprinting, the epigenetic process by which transcription occurs from a single parental allele, is believed to influence social behaviors in mammals. An important social behavior is group living, which is enriched in Eutherian mammals relative to monotremes and marsupials. Group living facilitates resource acquisition, defense of territory and co-care of young, but requires a stable social group with complex inter-individual relationships. Co-occurring with increased group living in Eutherians is an increase in the number of imprinted loci, including that spanning the maternally expressed Cdkn1c. Using a ‘loss-of-imprinting’ model of Cdkn1c (Cdkn1cBACx1), we demonstrated that twofold over expression of Cdkn1c results in abnormal social behaviors. Although, our previous work indicated that male Cdkn1cBACx1 mice were more dominant as measured by tube test encounters with unfamiliar wild-type (WT) males. Building upon this work, using more ecologically relevant assessments of social dominance, indicated that within their normal social group, Cdkn1cBACx1 mice did not occupy higher ranking positions. Nevertheless, we find that presence of Cdkn1cBACx1 animals within a group leads to instability of the normal social hierarchy, as indicated by greater variability in social rank within the group over time and an increase in territorial behavior in WT cage-mates. Consequently, these abnormal behaviors led to an increased incidence of fighting and wounding within the group. Taken together these data indicate that normal expression of Cdkn1c is required for maintaining stability of the social group and suggests that the acquisition of monoallelic expression of Cdkn1c may have enhanced social behavior in Eutherian mammals to facilitate group living.http://journal.frontiersin.org/article/10.3389/fnbeh.2018.00028/fullgenomic imprintingCdkn1c (p57Kip2)social groupdominanceepigenetics |
| spellingShingle | Gráinne I. McNamara Rosalind M. John Anthony R. Isles Territorial Behavior and Social Stability in the Mouse Require Correct Expression of Imprinted Cdkn1c Frontiers in Behavioral Neuroscience genomic imprinting Cdkn1c (p57Kip2) social group dominance epigenetics |
| title | Territorial Behavior and Social Stability in the Mouse Require Correct Expression of Imprinted Cdkn1c |
| title_full | Territorial Behavior and Social Stability in the Mouse Require Correct Expression of Imprinted Cdkn1c |
| title_fullStr | Territorial Behavior and Social Stability in the Mouse Require Correct Expression of Imprinted Cdkn1c |
| title_full_unstemmed | Territorial Behavior and Social Stability in the Mouse Require Correct Expression of Imprinted Cdkn1c |
| title_short | Territorial Behavior and Social Stability in the Mouse Require Correct Expression of Imprinted Cdkn1c |
| title_sort | territorial behavior and social stability in the mouse require correct expression of imprinted cdkn1c |
| topic | genomic imprinting Cdkn1c (p57Kip2) social group dominance epigenetics |
| url | http://journal.frontiersin.org/article/10.3389/fnbeh.2018.00028/full |
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