ArticleThe Plant cell2008
Sexual and apomictic seed formation in Hieracium requires the plant polycomb-group gene FERTILIZATION INDEPENDENT ENDOSPERM.
Article in The Plant cell, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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Who cites it
30 citing papers in PubMed, 65 citations in OpenAlex.
- Paradigm shift in apomixis research: Targeting mutants with elements of apomixis in sexual crops.Planta · 2026Review
- Pilosella: A Dicotyledonous Model for Studying Aposporous, Autonomous Apomixis.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Inspiration from apomictic species of Rutaceae: AGL11-FIE module induces autonomous development of maize embryo and endosperm without fertilization.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- The phenomenon of autonomous endosperm in sexual and apomictic plants.Journal of experimental botany · 2023Review
- Genetic mapping of theFrontiers in plant science · 2023Article
- 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
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- Comparative transcriptome analysis of the wild-type model apomict Hieracium praealtum and its loss of parthenogenesis (lop) mutant.BMC plant biology · 2018Article
- Auxin: a molecular trigger of seed development.Genes & development · 2018Review
- Concerted Divergence after Gene Duplication in Polycomb Repressive Complexes.Plant physiology · 2017Article
- Genetic analyses of the inheritance and expressivity of autonomous endosperm formation in Hieracium with different modes of embryo sac and seed formation.Annals of botany · 2017Article
- FIE, a nuclear PRC2 protein, forms cytoplasmic complexes in Arabidopsis thaliana.Journal of experimental botany · 2016Article
- Mechanisms of endosperm initiation.Plant reproduction · 2016Review
- A CURLY LEAF homologue controls both vegetative and reproductive development of tomato plants.Plant molecular biology · 2016Article
- Isolation, expression and evolution of FERTILIZATION INDEPENDENT ENDOSPERM homologs in Podostemaceae.Journal of plant research · 2016Article
- The genetic control of apomixis: asexual seed formation.Genetics · 2014Review
- Genome-wide analysis of the WD-repeat protein family in cucumber and Arabidopsis.Molecular genetics and genomics : MGG · 2014Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A Polycomb-Group (PcG) complex, FERTILIZATION INDEPENDENT SEED (FIS), represses endosperm development in Arabidopsis thaliana until fertilization occurs. The Hieracium genus contains apomictic species that form viable seeds asexually. To investigate FIS function during apomictic seed formation, FERTILIZATION INDEPENDENT ENDOSPERM (FIE), encoding a WD-repeat member of the FIS complex, was isolated and downregulated in sexual and apomictic Hieracium species. General downregulation led to defects in leaf and seed development, consistent with a role in developmental transitions and cell fate. PcG-like activity of Hieracium FIE was also supported by its interaction in vitro with the Arabidopsis CURLY LEAF PcG protein. By contrast, specific downregulation of FIE in developing seeds of sexual Hieracium did not result in autonomous endosperm proliferation but led to seed abortion after cross-pollination. Furthermore, in apomictic Hieracium, specific FIE downregulation inhibited autonomous embryo and endosperm initiation, and most autonomous seeds displayed defective embryo and endosperm growth. Therefore, FIE is required for both apomictic and fertilization-induced seed initiation in Hieracium. Since Hieracium FIE failed to interact with FIS class proteins in vitro, its partner proteins might differ from those in the FIS complex of Arabidopsis. These differences in protein interaction were attributed to structural modifications predicted from comparisons of Arabidopsis and Hieracium FIE molecular models.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.