Interspecific Hybrids Between Pelargonium × hortorum and Species From P. Section Ciconium Reveal Biparental Plastid Inheritance and Multi-Locus Cyto-Nuclear Incompatibility

Breteler, F.J.; Snijder, R.C.; Korver, Joost W.; Pelzer, Sieme; Sancho-Such, Mireia; Schranz, M. Eric; Bakker, Freek T.

doi:10.3389/fpls.2020.614871

Cited by 9 publications

(25 citation statements)

References 74 publications

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“…Leaf material for DNA extraction was collected after 10 months. Pelargonium strains used were published previously (Breman et al 2020) and summarized in the supplementary materials (supplementary material 1).…”

Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

“…Numerous studies point to nuclear genomic alleles being responsible for the occurrence of CNI in Ciconium (Tilney-Basset 1976, 1984, Metzlaff et al 1982, Tilney-Basset and Almouslem 1989, Tilney-Basset et al 1992, Apitz et al 2013, Horn 1994, Breman et al 2020 and co-evolution between functionally related genes was shown to occur (Zhang et al 2015. In Geraniaceae, and certainly in Ciconium, ERC seems to occur in genes controlling the ribosomal machinery (referred to here as: rERC) rather than the photosynthetic machinery (referred to here as: phERC).…”

Section: Evolutionary Rate Covariation Affects the Ribosomal Machinery In Ciconiummentioning

confidence: 99%

“…We have added two previously undescribed species to our study (P. yemenense sp. nov. (Baur 1909, Tilney-Basset et al 1992, Breman et al 2020.…”

Section: Introductionmentioning

confidence: 99%

“…Establishing interspecific hybrids between many species of Pelargonium is relatively easy (Horn 1994, Breman et al 2020; however, the resulting offspring often display signs of Cyto-Nuclear Incompatibility (CNI). When caused by mitochondria ('mCNI') this manifests itself as the occurrence of dwarf growth or (partial) male sterility (Schnable and Wise 1998).…”

Section: Introductionmentioning

confidence: 99%

“…When caused by mitochondria ('mCNI') this manifests itself as the occurrence of dwarf growth or (partial) male sterility (Schnable and Wise 1998). Plastid induced CNI ('pCNI') is manifested by the occurrence of bleaching of the leaves (chlorosis) which occurs regularly in F 1 hybrids of interspecific crosses in Pelargonium (Baur 1909, Horn 1994, Breman et al 2020. This is caused by the fact that chloroplasts can be inherited from either parent in Pelargonium (Baur 1909, Guo and Hu 1995, Weihe et al 2009, Apitz et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Exploring patterns of cytonuclear incompatibility in Pelargonium section Ciconium

Breteler

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Table of contents Chapter 1General introduction Chapter 2Interspecific hybrids between Pelargonium x hortorum and species from P. section Ciconium reveal biparental plastid inheritance and multi-locus cyto-nuclear incompatibility Chapter 3 Repeatome evolution in Pelargonium section Ciconium (Sweet) Harvey Chapter 4 Rapid plastome evolution in Pelargonium section Ciconium linked with altered plastidic ribosomes Chapter 5 Possible causes of plastid induced CNI and organellar inheritance in Pelargonium section Ciconium (Sweet) Chapter 6 General discussion References Summary Samenvatting Acknowledgements About the author List of publications Overview of training activities CWR: Crop Wild Relatives CNI: Cyto-Nuclear Incompatibility pCNI: plastid-induced CNI mCNI: mitochondrially-induced CNI plastome: the entire genome contained in the chloroplast mitome: the entire genome contained in the mitochondrion anterograde signaling: nuclear control of organellar function retrograde signaling: signaling pathways emanating from the organelles and influencing the expression of the nuclear genome CMS: Cytoplasmic male sterility, caused by mitochondrially induced cyto nuclear incompatibilities (mCNI) chlorosis: 'bleaching of leaves' caused by chloroplast induced by chloroplast induced cyto nuclear incompatibilities (pCNI) repeat: a DNA based sequence that has a repeating sequence pattern. Plays numerous, partially unknown, roles in the genome, dependent on the type repeatome: the collective repetitive part of the genome

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Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

Section: Evolutionary Rate Covariation Affects the Ribosomal Machinery In Ciconiummentioning

confidence: 99%

“…We have added two previously undescribed species to our study (P. yemenense sp. nov. (Baur 1909, Tilney-Basset et al 1992, Breman et al 2020.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exploring patterns of cytonuclear incompatibility in Pelargonium section Ciconium

Breteler

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Assessment of combining capacity and hybrid performance for morphological traits in geranium (Pelargonium×hortorum) genotypes using diallel analysis

do Nascimento Costa Ferreira,

Viana Ferraz,

Matos Monção

et al. 2024

Euphytica

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Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium

Breman,

Korver,

Snijder

et al. 2024

HORTIC. ADV.

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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.

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Interspecific Hybrids Between Pelargonium × hortorum and Species From P. Section Ciconium Reveal Biparental Plastid Inheritance and Multi-Locus Cyto-Nuclear Incompatibility

Cited by 9 publications

References 74 publications

Exploring patterns of cytonuclear incompatibility in Pelargonium section Ciconium

Exploring patterns of cytonuclear incompatibility in Pelargonium section Ciconium

Assessment of combining capacity and hybrid performance for morphological traits in geranium (Pelargonium×hortorum) genotypes using diallel analysis

Plastid-encoded RNA polymerase variation in Pelargonium sect Ciconium

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