ArticleBMC evolutionary biology2013
Chromosomal diversification and karyotype evolution of diploids in the cytologically diverse genus Prospero (Hyacinthaceae).
Article in BMC evolutionary biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 65 citations in OpenAlex.
- Cytogenetic insights into the diversification of Calanthe: polyploidy, karyotype variation, and genome size evolution.BMC plant biology · 2026Article
- Patterns of base chromosome numbers, genome size and rDNA loci evolution in the genusFrontiers in plant science · 2026Article
- PhytoKeys · 2024Article
- Does the evolution of micromorphology accompany chromosomal changes on dysploid and polyploid levels in the Barnardia japonica complex (Hyacinthaceae)?BMC plant biology · 2023Article
- Towards the Investigation of the Adaptive Divergence in a Species of Exceptional Ecological Plasticity: Chromosome-Scale Genome Assembly ofInternational journal of molecular sciences · 2023Article
- The Chromosome Number and rDNA Loci Evolution inInternational journal of molecular sciences · 2022Article
- Comparative Analyses of Complete Chloroplast Genomes and Karyotypes of AllotetraploidInternational journal of molecular sciences · 2022Article
- Comparative analysis of two Korean irises (Iris ruthenica and I. uniflora, Iridaceae) based on plastome sequencing and micromorphology.Scientific reports · 2022Article
- Molecular and Cytogenetic Analysis of rDNA Evolution in Crepis Sensu Lato.International journal of molecular sciences · 2022Article
- Distribution patterns of rDNA loci in theComparative cytogenetics · 2022Article
- Asymmetrical canina meiosis is accompanied by the expansion of a pericentromeric satellite in non-recombining univalent chromosomes in the genus Rosa.Annals of botany · 2020Article
- An explicit test of Pleistocene survival in peripheral versus nunatak refugia in two high mountain plant species.Molecular ecology · 2020Article
- Distinguishing Sichuan Walnut Cultivars and Examining Their Relationships withFrontiers in plant science · 2020Article
- Cytogenetic and molecular genotyping in the allotetraploid Festuca pratensis × Lolium perenne hybrids.BMC genomics · 2019Article
- Ancestral remnants or peripheral segregates? Phylogenetic relationships of two narrowly endemicAoB PLANTS · 2019Article
- Karyotype analysis of eight cultivated Allium species.Journal of applied genetics · 2019Article
- Euchromatic Supernumerary Chromosomal Segments-Remnants of Ongoing Karyotype Restructuring in theGenes · 2018Article
- Multiple Origins and Nested Cycles of Hybridization Result in High Tetraploid Diversity in the MonocotFrontiers in plant science · 2018Article
- Molecular and karyological data confirm that the enigmatic genus Platypholis from Bonin-Islands (SE Japan) is phylogenetically nested within Orobanche (Orobanchaceae).Journal of plant research · 2017Article
- Structural polymorphisms and distinct genomic composition suggest recurrent origin and ongoing evolution of B chromosomes in the Prospero autumnale complex (Hyacinthaceae).The New phytologist · 2016Article
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7 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundProspero (Hyacinthaceae) provides a unique system to assess the impact of genome rearrangements on plant diversification and evolution. The genus exhibits remarkable chromosomal variation but very little morphological differentiation. Basic numbers of x = 4, 5, 6 and 7, extensive polyploidy, and numerous polymorphic chromosome variants were described, but only three species are commonly recognized: P. obtusifolium, P. hanburyi, and P. autumnale s.l., the latter comprising four diploid cytotypes. The relationship between evolutionary patterns and chromosomal variation in diploids, the basic modules of the extensive cytological diversity, is presented.
resultsEvolutionary inferences were derived from fluorescence in situ hybridization (FISH) with 5S and 35S rDNA, genome size estimations, and phylogenetic analyses of internal transcribed spacer (ITS) of 35S rDNA of 49 diploids in the three species and all cytotypes of P. autumnale s.l. All species and cytotypes possess a single 35S rDNA locus, interstitial except in P. hanburyi where it is sub-terminal, and one or two 5S rDNA loci (occasionally a third in P. obtusifolium) at fixed locations. The localization of the two rDNA types is unique for each species and cytotype. Phylogenetic data in the P. autumnale complex enable tracing of the evolution of rDNA loci, genome size, and direction of chromosomal fusions: mixed descending dysploidy of x = 7 to x = 6 and independently to x = 5, rather than successive descending dysploidy, is proposed.
conclusionsAll diploid cytotypes are recovered as well-defined evolutionary lineages. The cytogenetic and phylogenetic approaches have provided excellent phylogenetic markers to infer the direction of chromosomal change in Prospero. Evolution in Prospero, especially in the P. autumnale complex, has been driven by differentiation of an ancestral karyotype largely unaccompanied by morphological change. These new results provide a framework for detailed analyses of various types of chromosomal rearrangements and karyotypic variation in polyploids.
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