ArticlePlant physiology2013
A conserved apomixis-specific polymorphism is correlated with exclusive exonuclease expression in premeiotic ovules of apomictic boechera species.
Article in Plant physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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43 citing papers in PubMed, 83 citations in OpenAlex.
- Paradigm shift in apomixis research: Targeting mutants with elements of apomixis in sexual crops.Planta · 2026Review
- Basis of apomixis in flowering plants - state of the art and research perspectives.Plant reproduction · 2026Review
- The Genus Boechera as a Model for Apomixis Research.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Integrative gene expression and heterologous functional analysis identify candidate regulators of apomixis inFrontiers in plant science · 2026Article
- Genome structure and molecular phylogeny of the only Eurasian Boechera species, Boechera falcata (Brassicaceae).G3 (Bethesda, Md.) · 2025Article
- A sexual/apomictic consensus linkage map of Eragrostis curvula at tetraploid level.BMC plant biology · 2025Article
- Widespread application of apomixis in agriculture requires further study of natural apomicts.iScience · 2024Review
- Development of Apomictic 56-Chromosomal Maize-Plants (Basel, Switzerland) · 2024Article
- Article
- Sex- versus apomixis-specific polymorphisms in the 5'UTR of APOLLO fromFrontiers in plant science · 2024Article
- The phenomenon of autonomous endosperm in sexual and apomictic plants.Journal of experimental botany · 2023Review
- Article
- Phylogenetic and Expression Analysis ofPlants (Basel, Switzerland) · 2022Article
- Genomic and Meiotic Changes Accompanying Polyploidization.Plants (Basel, Switzerland) · 2022Review
- Apomixis: genetic basis and controlling genes.Horticulture research · 2022Article
- Evolution of an Apomixis-Specific Allele Class in Supernumerary Chromatin of ApomicticFrontiers in plant science · 2022Article
- Genome-Wide Allele-Specific Expression in Obligately Asexual Daphnia pulex and the Implications for the Genetic Basis of Asexuality.Genome biology and evolution · 2021Article
- Environmental and Genetic Factors Affecting Apospory Expressivity in DiploidPlants (Basel, Switzerland) · 2021Article
- 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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7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Apomixis (asexual seed production) is characterized by meiotically unreduced egg cell production (apomeiosis) followed by its parthenogenetic development into offspring that are genetic clones of the mother plant. Fertilization (i.e. pseudogamy) of the central cell is important for the production of a functional endosperm with a balanced 2:1 maternal:paternal genome ratio. Here, we present the APOLLO (for apomixis-linked locus) gene, an Aspartate Glutamate Aspartate Aspartate histidine exonuclease whose transcripts are down-regulated in sexual ovules entering meiosis while being up-regulated in apomeiotic ovules at the same stage of development in plants of the genus Boechera. APOLLO has both "apoalleles," which are characterized by a set of linked apomixis-specific polymorphisms, and "sexalleles." All apomictic Boechera spp. accessions proved to be heterozygous for the APOLLO gene (having at least one apoallele and one sexallele), while all sexual genotypes were homozygous for sexalleles. Apoalleles contained a 20-nucleotide polymorphism present in the 5' untranslated region that contains specific transcription factor-binding sites for ARABIDOPSIS THALIANA HOMEOBOX PROTEIN5, LIM1 (for LINEAGE ABNORMAL11, INSULIN1, MECHANOSENSORY PROTEIN3), SORLIP1AT (for SEQUENCES OVERREPRESENTED IN LIGHT-INDUCED PROMOTERS IN ARABIDOPSIS THALIANA1), SORLIP2AT, and POLYA SIGNAL1. In the same region, sexalleles contain transcription factor-binding sites for DNA BINDING WITH ONE FINGER2, DNA BINDING WITH ONE FINGER3, and PROLAMIN BOX-BINDING FACTOR. Our results suggest that the expression of a single deregulated allele could induce the cascade of events leading to asexual female gamete formation in an apomictic plant.
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