ArticlePlant molecular biology2014
Characterization and expression analysis of SOMATIC EMBRYOGENESIS RECEPTOR KINASE (SERK) genes in sexual and apomictic Paspalum notatum.
Article in Plant molecular biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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27 citing papers in PubMed, 59 citations in OpenAlex.
- Morphological and molecular evidence supporting advantages of apomictic seed production in castor bean (Ricinus communis L.).BMC plant biology · 2025Article
- Apomixis: oh, what a tangled web we have!Planta · 2023Review
- Effects of genotype and culture conditions on microspore embryogenesis in radish (Molecular breeding : new strategies in plant improvement · 2022Article
- Spotting the Targets of the Apospory ControllerPlants (Basel, Switzerland) · 2022Article
- Tissue Culture and Somatic Embryogenesis in Warm-Season Grasses-Current Status and Its Applications: A Review.Plants (Basel, Switzerland) · 2022Review
- Differential Epigenetic Marks Are Associated with Apospory Expressivity in Diploid Hybrids ofPlants (Basel, Switzerland) · 2021Article
- A study of the heterochronic sense/antisense RNA representation in florets of sexual and apomictic Paspalum notatum.BMC genomics · 2021Article
- Review
- Article
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- Coexpression and Transcriptome analyses identify active Apomixis-related genes in Paspalum notatum leaves.BMC genomics · 2020Article
- Heterochronic reproductive developmental processes between diploid and tetraploid cytotypes of Paspalum rufum.Annals of botany · 2019Article
- Translocation of a parthenogenesis gene candidate to an alternate carrier chromosome in apomictic Brachiaria humidicola.BMC genomics · 2019Article
- The Rise of Apomixis in Natural Plant Populations.Frontiers in plant science · 2019Review
- A Plant-SpecificFrontiers in plant science · 2019Article
- Genetic Loci Governing Androgenic Capacity in Perennial Ryegrass (G3 (Bethesda, Md.) · 2018Article
- The vesicle trafficking regulator PN_SCD1 is demethylated and overexpressed in florets of apomictic Paspalum notatum genotypes.Scientific reports · 2018Article
- iTRAQ-based comparative proteomic analysis provides insights into somatic embryogenesis in Gossypium hirsutum L.Plant molecular biology · 2018Article
- The MAP3K-CodingFrontiers in plant science · 2018Article
- Structure, target-specificity and expression of PN_LNC_N13, a long non-coding RNA differentially expressed in apomictic and sexual Paspalum notatum.Plant molecular biology · 2018Article
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Authors and funding
9 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE (SERK) gene plays a fundamental role in somatic embryogenesis of angiosperms, and is associated with apomixis in Poa pratensis. The objective of this work was to isolate, characterize and analyze the expression patterns of SERK genes in apomictic and sexual genotypes of Paspalum notatum. A conserved 200-bp gene fragment was amplified from genomic DNA with heterologous primers, and used to initiate a chromosomal walking strategy for cloning the complete sequence. This procedure allowed the isolation of two members of the P. notatum SERK family; PnSERK1, which is similar to PpSERK1, and PnSERK2, which is similar to ZmSERK2 and AtSERK1. Phylogenetic analyses indicated that PnSERK1 and PnSERK2 represent paralogous sequences. Southern-blot hybridization indicated the presence of at least three copies of SERK genes in the species. qRT-PCR analyses revealed that PnSERK2 was expressed at significantly higher levels than PnSERK1 in roots, leaves, reproductive tissues and embryogenic calli. Moreover, in situ hybridization experiments revealed that PnSERK2 displayed a spatially and chronologically altered expression pattern in reproductive organs of the apomictic genotype with respect to the sexual one. PnSERK2 is expressed in nucellar cells of the apomictic genotype at meiosis, but only in the megaspore mother cell in the sexual genotype. Therefore, apomixis onset in P. notatum seems to be correlated with the expression of PnSERK2 in nucellar tissue.
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