ArticleBMC plant biology2019
Genetic and cytological analyses reveal the recombination landscape of a partially differentiated plant sex chromosome in kiwifruit.
Article in BMC plant biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 28 citations in OpenAlex.
- Recombination suppression in plant adaptation and speciation.The New phytologist · 2026Review
- Kiwifruit genomics and applications: recent advances, current challenges, and future prospects.Horticulture research · 2026Article
- Comparative chloroplast genomics provides insights into the phylogenetic relationships and evolutionary history for Actinidia species.Scientific reports · 2025Article
- The genome of Hippophae salicifolia provides new insights into the sexual differentiation of sea buckthorn.GigaScience · 2025Article
- Molecular breeding of flower load related traits in dioecious autotetraploidMolecular breeding : new strategies in plant improvement · 2024Article
- The origin and evolution of sex chromosomes, revealed by sequencing of the Silene latifolia female genome.Current biology : CB · 2023Article
- Evolution of plant sex and molecular mechanisms underlying plants sex separation.Forestry research · 2023Review
- Telomere-to-telomere assembly of a fish Y chromosome reveals the origin of a young sex chromosome pair.Genome biology · 2021Article
- Widespread Recombination Suppression Facilitates Plant Sex Chromosome Evolution.Molecular biology and evolution · 2021Article
- The Diversity of Plant Sex Chromosomes Highlighted through Advances in Genome Sequencing.Genes · 2021Review
- Targeted Mutagenesis of the Female-SuppressorPlants (Basel, Switzerland) · 2020Article
- QTL Mapping for Resistance to Cankers Induced byPathogens (Basel, Switzerland) · 2020Article
- Evidences for a role of two Y-specific genes in sex determination in Populus deltoides.Nature communications · 2020Article
- Fine mapping of the sex locus inHorticulture research · 2020Article
- Molecular Characterisation of a Supergene Conditioning Super-High Vitamin C in Kiwifruit Hybrids.Plants (Basel, Switzerland) · 2019Article
Corrections and comments
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Authors and funding
14 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundAngiosperm sex chromosomes, where present, are generally recently evolved. The key step in initiating the development of sex chromosomes from autosomes is the establishment of a sex-determining locus within a region of non-recombination. To better understand early sex chromosome evolution, it is important to determine the process by which recombination is suppressed around the sex determining genes. We have used the dioecious angiosperm kiwifruit Actinidia chinensis var. chinensis, which has an active-Y sex chromosome system, to study recombination rates around the sex locus, to better understand key events in the development of sex chromosomes.
resultsWe have confirmed the sex-determining region (SDR) in A. chinensis var. chinensis, using a combination of high density genetic mapping and fluorescent in situ hybridisation (FISH) of Bacterial Artificial Chromosomes (BACs) linked to the sex markers onto pachytene chromosomes. The SDR is a subtelomeric non-recombining region adjacent to the nucleolar organiser region (NOR). A region of restricted recombination of around 6 Mbp in size in both male and female maps spans the SDR and covers around a third of chromosome 25.
conclusionsAs recombination is suppressed over a similar region between X chromosomes and between and X and Y chromosomes, we propose that recombination is suppressed in this region because of the proximity of the NOR and the centromere, with both the NOR and centromere suppressing recombination, and this predates suppressed recombination due to differences between X and Y chromosomes. Such regions of suppressed recombination in the genome provide an opportunity for the evolution of sex chromosomes, if a sex-determining locus develops there or translocates into this region.
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