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@article{1073542,
author = {Šarhanová, Petra and Radim J., Vašut and Dančák, Martin and Bureš, Petr and Travníček, Bohumil},
article_number = {4},
doi = {http://dx.doi.org/10.1007/s00497-012-0200-9},
keywords = {Apomixis; Endosperm; Flow cytometry; Hybridisation; Rubus},
language = {eng},
issn = {0934-0882},
journal = {Sexual Plant Reproduction},
title = {New insights into the variability of reproduction modes in European populations of Rubus subgen. Rubus: how sexual are polyploid brambles?},
url = {http://download.springer.com/static/pdf/903/art%253A10.1007%252Fs00497-012-0200-9.pdf?auth66=1353072724_462854859451a5732fa7a88ff102c287&ext=.pdf},
volume = {25},
year = {2012}
}
TY - JOUR
ID - 1073542
AU - Šarhanová, Petra - Radim J., Vašut - Dančák, Martin - Bureš, Petr - Travníček, Bohumil
PY - 2012
TI - New insights into the variability of reproduction modes in European populations of Rubus subgen. Rubus: how sexual are polyploid brambles?
JF - Sexual Plant Reproduction
VL - 25
IS - 4
SP - 319-335
EP - 319-335
PB - Springer
SN - 09340882
KW - Apomixis
KW - Endosperm
KW - Flow cytometry
KW - Hybridisation
KW - Rubus
UR - http://download.springer.com/static/pdf/903/art%253A10.1007%252Fs00497-012-0200-9.pdf?auth66=1353072724_462854859451a5732fa7a88ff102c287&ext=.pdf
N2 - Rubus subgen. Rubus includes common European species with highly complicated taxonomy, ongoing hybridisation and facultative apomixis. Out of approximately 750 species recognised in Europe, only 3 diploid sexual species are known, along with numerous apomictic brambles that are highly connected to polyploidy. One exception of a tetraploid taxon is R. ser. Glandulosi, which is known for prevalent sexuality. This taxon highly hybridises with tetraploid members of R. ser. Discolores and leads to the origin of many hybridogenous populations and individuals. In this study, we verify reproduction modes in different diploid, triploid and tetraploid species of subgen. Rubus, with focus on taxa putatively involved in such hybridisation by applying flow cytometric seed screen analysis. We found 100 % sexuality of diploid species, whereas triploid species had obligate unreduced embryo sac development. In contrast, tetraploid plants had varying degrees of sexuality. Additionally, we discovered that R. bifrons has the ability to undergo a reproduction mode switch as a reaction to environmental conditions. These results provide insight into reproductive modes of European brambles and shed light on their reticulate evolution and speciation.
ER -
ŠARHANOVÁ, Petra, Vašut RADIM J., Martin DANČÁK, Petr BUREŠ a Bohumil TRAVNÍČEK. New insights into the variability of reproduction modes in European populations of Rubus subgen. Rubus: how sexual are polyploid brambles? \textit{Sexual Plant Reproduction}. Springer, 2012, roč.~25, č.~4, s.~319-335. ISSN~0934-0882. Dostupné z: https://dx.doi.org/10.1007/s00497-012-0200-9.
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