Natural hybridization and genome size
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F09%3A00029963" target="_blank" >RIV/00216224:14310/09:00029963 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Natural hybridization and genome size
Original language description
The frequency of spontaneous hybrids is non-randomly distributed among plant taxa: while some genera or families contain large numbers of hybrids, the majority contain none. Relationship was found between hybrid promiscuity and genome size in Cirsium: species with smaller genomes hybridize frequently, while those with larger genomes produce few or no hybrids. Moreover, negative correlation between the frequency of natural hybridization and the genome size difference between parental taxa was documentedin the most commonly hybridizing Cirsium species pairs. A similar relation was found in Epilobium. We tested the general model "the higher frequency of hybridization, the smaller genomes" on complete datasets about vascular floras of Great Britain, Germany, and the Czech Republic. The correlation between the average genome size and hybrid promiscuity (counted as number of hybrids / number of species within a particular genus or family) was confirmed both on generic and family.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
EF - Botany
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů