Populations of Pilosella species in ruderal habitats in the city of Prague: consequences of the spread of P. aurantiaca and P. rothiana

Result code in IS VaVaI

RIV/67985939:_____/20:00533879 - isvavai.cz

Alternative codes found

RIV/00216208:11310/20:10424222

Result on the web

http://hdl.handle.net/11104/0313766

DOI - Digital Object Identifier

10.23855/preslia.2020.167

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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Type

J_imp - 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

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Preslia

ISSN

0032-7786

e-ISSN

—

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