ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2017
Cytogenetic comparison of heteromorphic and homomorphic sex chromosomes in Coccinia (Cucurbitaceae) points to sex chromosome turnover.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
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15 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.
- Plant sex chromosomes defy evolutionary models of expanding recombination suppression and genetic degeneration.Nature plants · 2021Pooled it
- Sexy ways: approaches to studying plant sex chromosomes.Journal of experimental botany · 2024Review
- The evolution of huge Y chromosomes inPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- The contributions of Nettie Stevens to the field of sex chromosome biology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- Are plant and animal sex chromosomes really all that different?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- The Sister Chromatid Division of the Heteromorphic Sex Chromosomes inInternational journal of molecular sciences · 2022Article
- A critical review on cytogenetics of Cucurbitaceae with updates on Indian taxa.Comparative cytogenetics · 2022Review
- Interstitial Telomeric-like Repeats (ITR) in Seed Plants as Assessed by Molecular Cytogenetic Techniques: A Review.Plants (Basel, Switzerland) · 2021Review
- Evidence for Dosage Compensation inGenes · 2020Article
- A single gene underlies the dynamic evolution of poplar sex determination.Nature plants · 2020Article
- Sex Determination by Two Y-Linked Genes in Garden Asparagus.The Plant cell · 2020Article
- The distribution of epigenetic histone marks differs between the X and Y chromosomes in Silene latifolia.Planta · 2019Article
- Heterochromatin evolution in Arachis investigated through genome-wide analysis of repetitive DNA.Planta · 2019Article
- Pipeline for the Rapid Development of Cytogenetic Markers Using Genomic Data of Related Species.Genes · 2019Article
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3 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Our understanding of the evolution of plant sex chromosomes is increasing rapidly due to high-throughput sequencing data and phylogenetic and molecular-cytogenetic approaches that make it possible to infer the evolutionary direction and steps leading from homomorphic to heteromorphic sex chromosomes. Here, we focus on four species of Coccinia, a genus of 25 dioecious species, including Coccinia grandis, the species with the largest known plant Y chromosome. Based on a phylogeny for the genus, we selected three species close to C. grandis to test the distribution of eight repetitive elements including two satellites, and several plastid and mitochondrial probes, that we had previously found to have distinct accumulation patterns in the C. grandis genome. Additionally, we determined C-values and performed immunostaining experiments with (peri-)centromere-specific antibodies on two species (for comparison with C. grandis). In spite of no microscopic chromosomal heteromorphism, single pairs of chromosomes in male cells of all three species accumulate some of the very same repeats that are enriched on the C. grandis Y chromosome, pointing to either old (previous) sex chromosomes or incipient (newly arising) ones, that is, to sex chromosome turnover. A 144-bp centromeric satellite repeat (CgCent) that characterizes all C. grandis chromosomes except the Y is highly abundant in all centromeric regions of the other species, indicating that the centromeric sequence of the Y chromosome diverged very recently.
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