ArticleAnnals of botany2011
Tetraploidization events by chromosome doubling of nucellar cells are frequent in apomictic citrus and are dependent on genotype and environment.
Article in Annals of botany, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed.
- Impact of temperature on karyotype differences in Cynodon dactylon of different ploidy levels at different latitudes.BMC plant biology · 2026Article
- Pollen performance under controlled temperatures and chromosome stability of diploid and tetraploid citrus.BMC plant biology · 2025Article
- Insight into Physiological and Biochemical Determinants of Salt Stress Tolerance in Tetraploid Citrus.Antioxidants (Basel, Switzerland) · 2023Article
- Meiotic Behaviors of Allotetraploid Citrus Drive the Interspecific Recombination Landscape, the Genetic Structures, and Traits Inheritance in Tetrazyg Progenies Aiming to Select New Rootstocks.Plants (Basel, Switzerland) · 2023Article
- Pollen Development and Viability in Diploid and Doubled Diploid Citrus Species.Frontiers in plant science · 2022Article
- Better tolerance to Huanglongbing is conferred by tetraploid Swingle citrumelo rootstock and is influenced by the ploidy of the scion.Frontiers in plant science · 2022Article
- Tetraploidy inFrontiers in plant science · 2022Article
- Strategies to Produce Grapefruit-Like Citrus Varieties With a Low Furanocoumarin Content and Distinctive Flavonoid Profiles.Frontiers in plant science · 2021Article
- Specific Physiological and Anatomical Traits Associated With Polyploidy and Better Detoxification Processes Contribute to Improved Huanglongbing Tolerance of the Persian Lime Compared With the Mexican Lime.Frontiers in plant science · 2021Article
- Male and female inheritance patterns in tetraploid 'Moncada' mandarin.Plant cell reports · 2020Article
- Analysis of Crossover Events and Allele Segregation Distortion in Interspecific Citrus Hybrids by Single Pollen Genotyping.Frontiers in plant science · 2020Article
- Preferential Disomic Segregation andFrontiers in plant science · 2020Article
- Synthetic Polyploidy in Grafted Crops.Frontiers in plant science · 2020Review
- Integrated Karyotypes of Diploid and Tetraploid Carrizo Citrange (Frontiers in plant science · 2020Article
- Enhanced ROS scavenging and sugar accumulation contribute to drought tolerance of naturally occurring autotetraploids in Poncirus trifoliata.Plant biotechnology journal · 2019Article
- Facing Climate Change: Biotechnology of Iconic Mediterranean Woody Crops.Frontiers in plant science · 2019Review
- Karyotype Analysis of Diploid and Spontaneously Occurring Tetraploid Blood Orange [Frontiers in plant science · 2019Article
- Origin of C. latifolia and C. aurantiifolia triploid limes: the preferential disomic inheritance of doubled-diploid 'Mexican' lime is consistent with an interploid hybridization hypothesis.Annals of botany · 2018Article
- Preferential Homologous Chromosome Pairing in a Tetraploid Intergeneric Somatic Hybrid (Frontiers in plant science · 2018Article
- Molecular Characterization and Stress Tolerance Evaluation of New Allotetraploid Somatic Hybrids Between Carrizo Citrange andFrontiers in plant science · 2018Article
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10 authors.
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Abstract
BACKGROUND AND
aimsPolyploidy is a major component of plant evolution. The citrus gene pool is essentially diploid but tetraploid plants are frequently encountered in seedlings of diploid apomictic genotypes. The main objectives of the present study were to establish the origin of these tetraploid plants and to ascertain the importance of genotypic and environmental factors on tetraploid formation.
methodsTetraploid seedlings from 30 diploid apomictic genotypes were selected by flow cytometry and genotyped with 24 single sequence repeat (SSR) markers to analyse their genetic origin. Embryo rescue was used to grow all embryos contained in polyembryonic seeds of 'Tardivo di Ciaculli' mandarin, followed by characterization of the plantlets obtained by flow cytometry and SSR markers to accurately establish the rate of tetraploidization events and their potential tissue location. Inter-annual variations in tetraploid seedling rates were analysed for seven genotypes. Variation in tetraploid plantlet rates was analysed between different seedlings of the same genotype ('Carrizo' citrange; Citrus sinensis × Poncirus trifoliata) from seeds collected in different tropical, subtropical and Mediterranean countries. KEY
resultsTetraploid plants were obtained for all the studied diploid genotypes, except for four mandarins. All tetraploid plants were identical to their diploid maternal line for SSR markers and were not cytochimeric. Significant genotypic and environmental effects were observed, as well as negative correlation between mean temperature during the flowering period and tetraploidy seedling rates. The higher frequencies (20 %) of tetraploids were observed for citranges cultivated in the Mediterranean area.
conclusionsTetraploidization by chromosome doubling of nucellar cells are frequent events in apomictic citrus, and are affected by both genotypic and environmental factors. Colder conditions in marginal climatic areas appear to favour the expression of tetraploidization. Tetraploid genotypes arising from chromosome doubling of apomictic citrus are extensively being used as parents in breeding programmes to develop seedless triploid cultivars and have potential direct use as new rootstocks.
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