A potential role of hybridization in the recent diversification history of the Malagasy baobabs.
Tag - hybridization
AJ Cann
Hybridization and long-distance colonization at different time scales
Africa was apparently colonized by grasses twice from two different sources, Europe and East Asia.
botanyone
Molecular analyses help resolve the evolution of Platanus
Recent research on the history of Platanus has shown that complex hybridization phenomena occurred in the central American species, and its evolutionary history remains unresolved. De Castro et al. employ sequencing of...
Individual mating patterns in mixed oak stands
Trees can mate assortatively, which may be a result of variable compatibility among trees due to genetic and/or environmental factors.
Polyploidy in Leucanthemum in the Iberian Peninsula
Using molecular and systematic techniques to infer the evolutionary history of the L. pluriflorum clan in the north-west of the Iberian Peninsula.
Merging gene pools in Hypericum perforatum
Analysis of extensive field collections demonstrates that H. perforatum is not of hybrid origin, and for the first time, documents wild diploid populations.
Australia’s national flower is an invasive species – even in Australia
How do you control a problem like Acacia pycnantha? First, figure out what you are dealign with.
Evolution and speciation in Sorbus
Interspecific hybridization and polyploidy are key processes in plant evolution and are responsible for ongoing genetic diversification in the genus Sorbus (Rosaceae). Ludwig et al. study mating systems of diploid...
Mechanism of pollinator specificity in Ficus
Pollinator specificity facilitates reproductive isolation among plants, and mechanisms that generate specificity influence species boundaries. Wang et al. use two varieties of an Asian fig tree, Ficus semicordata, that...
Apomixis and reticulate evolution in Aspleniaceae
Ferns have the highest proportion of apomictic species in all plant groups, but the reasons for this are unclear. Dyer et al. determine the reproductive mode of species in the Asplenium monanthes fern complex, and use...
Sexual organ reciprocity in distylous primroses
The main morphological characteristic of heterostyly is the reciprocal placement of anthers and stigmas in two distinct floral morphs; however, the partitioning of reciprocity within and between closely related species...
Minority cytotypes in fragrant orchids
Patterns of ploidy variation can provide useful insights into the evolutionary mechanisms that shape the dynamics of plant systems showing ploidy diversity. Trávníček et al. examine cytotype variation in fragrant...
Reproductive isolation between hybridizing orchids
The potential for gene exchange between species with different ploidy levels has long been recognized, but only a few studies have tested this hypothesis in situ and most of them have focused on not more than two co...
Reticulate evolution and triploidy in Diphasiastrum
Diphasiastrum species have been assumed to produce homoploid hybrids whose reproductive competence is still a matter of debate. Using flow cytometry, Bennert et al. demonstrate that the three Central European primary...
