ArticlePlants (Basel, Switzerland)2020
Comparative Chromosomal Localization of 45S and 5S rDNA Sites in 76 Purple-Fleshed Sweet Potato Cultivars.
Article in Plants (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Research Progress in the Cytogenetics of Sweetpotato and Its Wild Relatives.Plants (Basel, Switzerland) · 2026Review
- Comparative cytogenomic characterization of 18 wheat core collection cultivars from six continents using triple-color PLOP-FISH.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Comparative Analysis of Chromosome Repeat DNA Patterns in FourInternational journal of molecular sciences · 2025Article
- Chromosomal Localization and Diversity Analysis of 5S and 18S Ribosomal DNA in 13 Species from the GenusGenes · 2024Article
- Cytomolecular diversity among Vigna Savi (Leguminosae) subgenera.Protoplasma · 2024Article
- The Application of Fluorescence In Situ Hybridization in the Prescreening ofPlants (Basel, Switzerland) · 2024Article
- High Chromosomal Reorganization and Presence of Microchromosomes in Chactidae Scorpions from the Brazilian Amazon.Biology · 2023Article
- Investigating the Origin and Evolution of PolyploidPlants (Basel, Switzerland) · 2023Article
- Article
- Karyotypic stability of Fragaria (strawberry) species revealed by cross-species chromosome painting.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2021Article
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Authors and funding
8 authors.
Funding
Abstract
In recent years, the purple-fleshed sweet potato has attracted more attention because of its high nutritional value. The cytogenetics of this crop is relatively unexplored, limiting our knowledge on its genetic diversity. Therefore, we conducted cytogenetic analysis of 76 purple-fleshed sweet potato cultivars to analyze the chromosome structure and distribution of 45S and 5S rDNA. We noted that only 62 cultivars had 90 chromosomes, and the others were aneuploid with 88, 89, 91, or 92 chromosomes. The number of 45S rDNA in the 76 cultivars varied from 16 to 21; these sites showed different signal sizes and intensities and were localized at the chromosomal termini or satellite. The number of 5S rDNA was relatively stable; 74 cultivars showed six sites located at the chromosomal sub-terminal or near the centromere. Only the 'Quanzishu 96' and 'Yuzixiang 10' showed seven and five 5S rDNA sites, respectively. Additionally, both parent cultivars of 'Quanzishu 96' showed 18 45S and six 5S rDNA sites. Overall, our results indicate a moderate diversity in the distribution pattern of rDNAs. Our findings provide comprehensive cytogenetic information for the identification of sweet potato chromosomes, which can be useful for developing a high-quality germplasm resource.
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