Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium
Abstract Cyto-Nuclear Incompatibility (CNI), in which there is a mismatch in the interaction between organelles and nucleus, impacts plant species evolution as it has a direct effect on the fitness of plants. It can reduce fertility and/or result in bleached plants devoid of functional chloroplasts....
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2024-01-01
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| Series: | Horticulture Advances |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s44281-023-00015-2 |
| _version_ | 1797355740746219520 |
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| author | FC Breman JW Korver RC Snijder C Villard ME Schranz FT Bakker |
| author_facet | FC Breman JW Korver RC Snijder C Villard ME Schranz FT Bakker |
| author_sort | FC Breman |
| collection | DOAJ |
| description | Abstract Cyto-Nuclear Incompatibility (CNI), in which there is a mismatch in the interaction between organelles and nucleus, impacts plant species evolution as it has a direct effect on the fitness of plants. It can reduce fertility and/or result in bleached plants devoid of functional chloroplasts. Understanding the processes leading to CNI could help to improve breeding efforts, especially in cases where species with desirable traits need to be crossed into existing cultivars. To better understand the occurrence of CNI and its effects on plant phenotype, we combined near comprehensive crossing series across a clade of species from Pelargonium section Ciconium with comparative genomics and protein modelling for plastid-encoded RNA polymerase (PEP), as the rpo genes encoding PEP subunits were found to be unusually highly divergent, especially in two length-variable regions. Of all plastome-encoded genes, we found these genes to contain more variation than observed across angiosperms and that this underlies structural variation inferred for PEP in P. sect. Ciconium. This variation, resulting in differing physico-chemical properties of the rpo-encoded peptides, provides a possible explanation for the observed CNI, but we cannot directly correlate plastid related CNI phenotypes to rpo genotypes. This suggests that more than one interaction between the nuclear genome and the plastome genes are needed to fully explain the observed patterns. |
| first_indexed | 2024-03-08T14:15:24Z |
| format | Article |
| id | doaj.art-acd168fe1b60437fbcfa1847448ed8ea |
| institution | Directory Open Access Journal |
| issn | 2948-1104 |
| language | English |
| last_indexed | 2024-03-08T14:15:24Z |
| publishDate | 2024-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Horticulture Advances |
| spelling | doaj.art-acd168fe1b60437fbcfa1847448ed8ea2024-01-14T12:26:56ZengSpringerHorticulture Advances2948-11042024-01-012111710.1007/s44281-023-00015-2Plastid-encoded RNA polymerase variation in Pelargonium sect CiconiumFC Breman0JW Korver1RC Snijder2C Villard3ME Schranz4FT Bakker5Biosystematics Group, Wageningen University and ResearchBiosystematics Group, Wageningen University and ResearchSyngenta Seeds BV CornelisBiosystematics Group, Wageningen University and ResearchBiosystematics Group, Wageningen University and ResearchBiosystematics Group, Wageningen University and ResearchAbstract Cyto-Nuclear Incompatibility (CNI), in which there is a mismatch in the interaction between organelles and nucleus, impacts plant species evolution as it has a direct effect on the fitness of plants. It can reduce fertility and/or result in bleached plants devoid of functional chloroplasts. Understanding the processes leading to CNI could help to improve breeding efforts, especially in cases where species with desirable traits need to be crossed into existing cultivars. To better understand the occurrence of CNI and its effects on plant phenotype, we combined near comprehensive crossing series across a clade of species from Pelargonium section Ciconium with comparative genomics and protein modelling for plastid-encoded RNA polymerase (PEP), as the rpo genes encoding PEP subunits were found to be unusually highly divergent, especially in two length-variable regions. Of all plastome-encoded genes, we found these genes to contain more variation than observed across angiosperms and that this underlies structural variation inferred for PEP in P. sect. Ciconium. This variation, resulting in differing physico-chemical properties of the rpo-encoded peptides, provides a possible explanation for the observed CNI, but we cannot directly correlate plastid related CNI phenotypes to rpo genotypes. This suggests that more than one interaction between the nuclear genome and the plastome genes are needed to fully explain the observed patterns.https://doi.org/10.1007/s44281-023-00015-2PelargoniumEvolutionPlastid encoded polymeraseCNICiconium |
| spellingShingle | FC Breman JW Korver RC Snijder C Villard ME Schranz FT Bakker Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium Horticulture Advances Pelargonium Evolution Plastid encoded polymerase CNI Ciconium |
| title | Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium |
| title_full | Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium |
| title_fullStr | Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium |
| title_full_unstemmed | Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium |
| title_short | Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium |
| title_sort | plastid encoded rna polymerase variation in pelargonium sect ciconium |
| topic | Pelargonium Evolution Plastid encoded polymerase CNI Ciconium |
| url | https://doi.org/10.1007/s44281-023-00015-2 |
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