ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2024
The holocentricity in the dioecious nutmeg (Myristica fragrans) is not based on major satellite repeats.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- A haplotype-resolved nutmeg genome reveals XY sex chromosome evolution and enables molecular sexing.Communications biology · 2026Article
- Genome survey of nutmeg (Frontiers in plant science · 2026Article
- A new efficient immunoprotocol to detect chromosomal/nuclear proteins along with repetitive DNA in squash preparations of formalin-fixed, long-stored root tips.Plant methods · 2025Article
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Abstract
Holocentric species are characterized by the presence of centromeres throughout the length of the chromosomes. We confirmed the holocentricity of the dioecious, small chromosome-size species Myristica fragrans based on the chromosome-wide distribution of the centromere-specific protein KNL1, α-tubulin fibers, and the cell cycle-dependent histone H3 serine 28 phosphorylation (H3S28ph) mark. Each holocentromere is likely composed of, on average, ten centromere units, but none of the identified and in situ hybridized high-copy satellite repeats is centromere-specific. No sex-specific major repeats are present in the high-copy repeat composition of male or female plants, or a significant difference in genome size was detected. Therefore, it is unlikely that M. fragrans possesses heteromorphic sex chromosomes.
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