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Overcoming Ploidy Barriers: The Role of Triploid Bridges in the Genetic Introgression of Cardamine amara. [PDF]
Mol EcolABSTRACT Polyploidisation is a significant reproductive barrier, yet genetic evidence indicates that interploidy admixture is more common than previously thought. Theoretical models and controlled crosses support the ‘triploid bridge’ hypothesis, proposing that hybrids of intermediate ploidy facilitate gene flow.
Bartolić P +8 more
europepmc +2 more sources
FEMS Microbiology Letters, 2011 A recently developed real-time PCR method for the determination of genome copy numbers was optimized for the application to cyanobacteria. Three species were chosen to represent a fresh water species, a salt water species, and two strains of a widely used laboratory species.
Marco Griese +2 more
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Ploidy and the evolution of parasitism [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2011 Levels of parasitism are continuously distributed in nature. Models of host–parasite coevolution, however, typically assume that species can be easily characterized as either parasitic or non-parasitic. Consequently, it is poorly understood which factors influence the evolution of parasitism itself.
Leithen K. M'Gonigle, Sarah P. Otto
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The hybrid number of a ploidy profile
Journal of Mathematical Biology, 2022 AbstractPolyploidization, whereby an organism inherits multiple copies of the genome of their parents, is an important evolutionary event that has been observed in plants and animals. One way to study such events is in terms of the ploidy number of the species that make up a dataset of interest.
K. T. Huber, L. J. Maher
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Quantification of ploidy in proteobacteria revealed the existence of monoploid, (mero-)oligoploid and polyploid species [PDF]
, 2011 Bacteria are generally assumed to be monoploid (haploid). This assumption is mainly based on generalization of the results obtained with the most intensely studied model bacterium, Escherichia coli (a gamma-proteobacterium), which is monoploid during ...
Lange, Christian +3 more
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Polyploidy breaks speciation barriers in Australian burrowing frogs Neobatrachus [PDF]
, 2020 Polyploidy has played an important role in evolution across the tree of life but it is still unclear how polyploid lineages may persist after their initial formation.
Booker, William +11 more
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Ploidy levels and reproductive behaviour in invasive Hieracium pilosella in Patagonia [PDF]
, 2011 Within a population of invasive Hieracium pilosella in Chilean Patagonia we found two ploidy levels, pentaploid and hexaploid. Each ploidy level was represented by one clone.
Krahulcová, Anna, Krahulec, František
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Hybridization between wild and cultivated potato species in the Peruvian Andes and biosafety implications for deployment of GM potatoes [PDF]
, 2008 The nature and extent of past and current hybridization between cultivated potato and wild relatives in nature is of interest to crop evolutionists, taxonomists, breeders and recently to molecular biologists because of the possibilities of inverse gene ...
Celis Gamboa, B.C. +4 more
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CENH3-GFP: a visual marker for gametophytic and somatic ploidy determination in Arabidopsis thaliana [PDF]
, 2016 Background: The in vivo determination of the cell-specific chromosome number provides a valuable tool in several aspects of plant research. However, current techniques to determine the endosystemic ploidy level do not allow non-destructive, cell-specific
Angenon, Geert +4 more
core +5 more sources
Ploidy dynamics and evolvability in fungi [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2016 Rapid responses to acute stresses are essential for stress survival and are critical to the ability of fungal pathogens to adapt to new environments or hosts. The rapid emergence of drug resistance is used as a model for how fungi adapt and survive stress conditions that inhibit the growth of progenitor cells. Aneuploidy and loss of heterozygosity (LOH)
Noa Blutraich Wertheimer +2 more
openaire +3 more sources