Populations of Pilosella species in ruderal habitats in the city of Prague: consequences of the spread of P. aurantiaca and P. rothiana
Result description
Consequences of Pilosella aurantiaca and P. rothiana (stabilized hybridogenous species P. echioides > P. officinarum) spreading into three semi-ruderal localities in the city of Prague were studied. Numbers of chromosomes / DNA ploidy level and mode of reproduction are given for all the species and hybrids studied. Both P. aurantiaca and P. rothiana are apomictic and tetraploid with 2n =4x = 36. Pilosella rothiana hybridizes with pentaploid P. piloselloides (P. xheterodoxa, 2n = 6x = 53/54) and tetraploid P. officinarum (P. xbifurca, 2n = 6x = 54). Pilosella aurantiaca hybridizes with tetraploid P. caespitosa (P. xfuscoatra, 2n = 4x = 36), P. piloselloides (P. xderubella, 2n =5x = 45), P. officinarum (P. xrubm, 2n = 6x) P. mthiana (2n = 6x =54), P. xbifurca (with 2n = 5x =45) and P. visianii (tetraploid, 2n = 4x = 36). Hybrids of P. aurantiaca with tetraploid P. xleptophyton were of two types, the tetraploid hybrid originating from parental reduced gametes and the hexaploid hybrid originating from a reduced and an unreduced parental gamete, respectively. Introgression from apomictic P. bauhini towards sexual P. officinarum was found in a hybrid swarm in one of the populations studied. Evolutionary potential of recent hybrids was evaluated with respect to their mode of reproduction: most of the recent hybrids were not apomictic. It seems impossible to predict the mode of reproduction from that of the parental species.
Keywords
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/00216208:11310/20:10424222
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Populations of Pilosella species in ruderal habitats in the city of Prague: consequences of the spread of P. aurantiaca and P. rothiana
Original language description
Consequences of Pilosella aurantiaca and P. rothiana (stabilized hybridogenous species P. echioides > P. officinarum) spreading into three semi-ruderal localities in the city of Prague were studied. Numbers of chromosomes / DNA ploidy level and mode of reproduction are given for all the species and hybrids studied. Both P. aurantiaca and P. rothiana are apomictic and tetraploid with 2n =4x = 36. Pilosella rothiana hybridizes with pentaploid P. piloselloides (P. xheterodoxa, 2n = 6x = 53/54) and tetraploid P. officinarum (P. xbifurca, 2n = 6x = 54). Pilosella aurantiaca hybridizes with tetraploid P. caespitosa (P. xfuscoatra, 2n = 4x = 36), P. piloselloides (P. xderubella, 2n =5x = 45), P. officinarum (P. xrubm, 2n = 6x) P. mthiana (2n = 6x =54), P. xbifurca (with 2n = 5x =45) and P. visianii (tetraploid, 2n = 4x = 36). Hybrids of P. aurantiaca with tetraploid P. xleptophyton were of two types, the tetraploid hybrid originating from parental reduced gametes and the hexaploid hybrid originating from a reduced and an unreduced parental gamete, respectively. Introgression from apomictic P. bauhini towards sexual P. officinarum was found in a hybrid swarm in one of the populations studied. Evolutionary potential of recent hybrids was evaluated with respect to their mode of reproduction: most of the recent hybrids were not apomictic. It seems impossible to predict the mode of reproduction from that of the parental species.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Preslia
ISSN
0032-7786
e-ISSN
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Volume of the periodical
92
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
24
Pages from-to
167-190
UT code for WoS article
000573572400004
EID of the result in the Scopus database
2-s2.0-85093098624
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Plant sciences, botany
Year of implementation
2020