Non-muscle myosin II is required for correct fate specification in the Caenorhabditis elegans seam cell divisions
During development, cell division often generates two daughters with different developmental fates. Distinct daughter identities can result from the physical polarity and size asymmetry itself, as well as the subsequent activation of distinct fate programmes in each daughter. Asymmetric divisions ar...
| Main Authors: | , |
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| Format: | Journal article |
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Springer Nature
2017
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| _version_ | 1797072932212572160 |
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| author | Ding, S Woollard, A |
| author_facet | Ding, S Woollard, A |
| author_sort | Ding, S |
| collection | OXFORD |
| description | During development, cell division often generates two daughters with different developmental fates. Distinct daughter identities can result from the physical polarity and size asymmetry itself, as well as the subsequent activation of distinct fate programmes in each daughter. Asymmetric divisions are a feature of the C. elegans seam lineage, in which a series of post-embryonic, stem-like asymmetric divisions give rise to an anterior daughter that differentiates and a posterior daughter that continues to divide. Here we have investigated the role of non-muscle myosin II (nmy-2) in these asymmetric divisions. We show that nmy-2 does not appear to be involved in generating physical division asymmetry, but nonetheless is important for specifying differential cell fate. While cell polarity appears normal, and chromosome and furrow positioning remains unchanged when nmy-2 is inactivated, seam cell loss occurs through inappropriate terminal differentiation of posterior daughters. This reveals a role for nmy-2 in cell fate determination not obviously linked to the primary polarity determination mechanisms it has been previously associated with. |
| first_indexed | 2024-03-06T23:14:47Z |
| format | Journal article |
| id | oxford-uuid:66c16166-7c89-423b-9d80-db163fb48e31 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:14:47Z |
| publishDate | 2017 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:66c16166-7c89-423b-9d80-db163fb48e312022-03-26T18:33:54ZNon-muscle myosin II is required for correct fate specification in the Caenorhabditis elegans seam cell divisionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:66c16166-7c89-423b-9d80-db163fb48e31Symplectic Elements at OxfordSpringer Nature2017Ding, SWoollard, ADuring development, cell division often generates two daughters with different developmental fates. Distinct daughter identities can result from the physical polarity and size asymmetry itself, as well as the subsequent activation of distinct fate programmes in each daughter. Asymmetric divisions are a feature of the C. elegans seam lineage, in which a series of post-embryonic, stem-like asymmetric divisions give rise to an anterior daughter that differentiates and a posterior daughter that continues to divide. Here we have investigated the role of non-muscle myosin II (nmy-2) in these asymmetric divisions. We show that nmy-2 does not appear to be involved in generating physical division asymmetry, but nonetheless is important for specifying differential cell fate. While cell polarity appears normal, and chromosome and furrow positioning remains unchanged when nmy-2 is inactivated, seam cell loss occurs through inappropriate terminal differentiation of posterior daughters. This reveals a role for nmy-2 in cell fate determination not obviously linked to the primary polarity determination mechanisms it has been previously associated with. |
| spellingShingle | Ding, S Woollard, A Non-muscle myosin II is required for correct fate specification in the Caenorhabditis elegans seam cell divisions |
| title | Non-muscle myosin II is required for correct fate specification in the Caenorhabditis elegans seam cell divisions |
| title_full | Non-muscle myosin II is required for correct fate specification in the Caenorhabditis elegans seam cell divisions |
| title_fullStr | Non-muscle myosin II is required for correct fate specification in the Caenorhabditis elegans seam cell divisions |
| title_full_unstemmed | Non-muscle myosin II is required for correct fate specification in the Caenorhabditis elegans seam cell divisions |
| title_short | Non-muscle myosin II is required for correct fate specification in the Caenorhabditis elegans seam cell divisions |
| title_sort | non muscle myosin ii is required for correct fate specification in the caenorhabditis elegans seam cell divisions |
| work_keys_str_mv | AT dings nonmusclemyosiniiisrequiredforcorrectfatespecificationinthecaenorhabditiselegansseamcelldivisions AT woollarda nonmusclemyosiniiisrequiredforcorrectfatespecificationinthecaenorhabditiselegansseamcelldivisions |