ArticleEcology and evolution2013
Interploidy hybridization in sympatric zones: the formation of Epidendrum fulgens × E. puniceoluteum hybrids (Epidendroideae, Orchidaceae).
Article in Ecology and evolution, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 46 citations in OpenAlex.
- Nuclear genome profiling of two species ofNAR genomics and bioinformatics · 2026Article
- Unraveling the Genome of Epidendrum Fulgens: Demographic History and Gene Family Dynamics in a Resilient Neotropical Orchid.Genome biology and evolution · 2026Article
- The Repeatome in the Mega-GenusGenes · 2026Article
- An Overview of Orchidaceae from Brazil: Advances and Shortfalls After 400 Years of Studies.Plants (Basel, Switzerland) · 2025Review
- Hybridization and embryological patterns underpinning reproductive barriers in Dactylorhiza (Orchidaceae).Scientific reports · 2025Article
- In Vitro Polyploidization ofPlants (Basel, Switzerland) · 2023Article
- Two pathways of 2n gamete formation and differences in the frequencies of 2n gametes between wild species and interspecific hybrids.Plant cell reports · 2022Article
- Differential gene expression reveals mechanisms related to habitat divergence between hybridizing orchids from the Neotropical coastal plains.BMC plant biology · 2020Article
- Genomic nucleotide-based distance analysis for delimiting old world monkey derived herpes simplex virus species.BMC genomics · 2020Article
- Hybridization and geographic distribution shapes the spatial genetic structure of two co-occurring orchid species.Heredity · 2019Article
- Article
- Rock outcrop orchids reveal the genetic connectivity and diversity of inselbergs of northeastern Brazil.BMC evolutionary biology · 2014Article
- Multiple hybridization events, polyploidy and low postmating isolation entangle the evolution of neotropical species of Epidendrum (Orchidaceae).BMC evolutionary biology · 2014Article
- Intrachromosomal karyotype asymmetry in Orchidaceae.Genetics and molecular biologyArticle
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Interspecific hybridization is a primary cause of extensive morphological and chromosomal variation and plays an important role in plant species diversification. However, the role of interploidal hybridization in the formation of hybrid swarms is less clear. Epidendrum encompasses wide variation in chromosome number and lacks strong premating barriers, making the genus a good model for clarifying the role of chromosomes in postzygotic barriers in interploidal hybrids. In this sense, hybrids from the interploidal sympatric zone between E. fulgens (2n = 2x = 24) and E. puniceoluteum (2n = 4x = 56) were analyzed using cytogenetic techniques to elucidate the formation and establishment of interploidal hybrids. Hybrids were not a uniform group: two chromosome numbers were observed, with the variation being a consequence of severe hybrid meiotic abnormalities and backcrossing with E. puniceoluteum. The hybrids were triploids (2n = 3x = 38 and 40) and despite the occurrence of enormous meiotic problems associated with triploidy, the hybrids were able to backcross, producing successful hybrid individuals with broad ecological distributions. In spite of the nonpolyploidization of the hybrid, its formation is a long-term evolutionary process rather than a product of a recent disturbance, and considering other sympatric zones in Epidendrum, these events could be recurrent.
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