Polyploid species rely on vegetative reproduction more than diploids: a re-examination of the old hypothesis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F17%3A00480250" target="_blank" >RIV/67985939:_____/17:00480250 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/17:10371568

Result on the web

<a href="http://dx.doi.org/10.1093/aob/mcx009" target="_blank" >http://dx.doi.org/10.1093/aob/mcx009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/aob/mcx009" target="_blank" >10.1093/aob/mcx009</a>

Result language

angličtina

Original language name

Polyploid species rely on vegetative reproduction more than diploids: a re-examination of the old hypothesis

Original language description

Polyploidy is arguably the single most important genetic mechanism in plant speciation and diversification. It has been repeatedly suggested that polyploids show higher vegetative reproduction than diploids (to by-pass low fertility after the polyploidization), but there are no rigorous tests of it. Data were analysed by phylogenetic regressions of clonal growth parameters, and vegetative reproduction in culture on the ploidy status of a large set of species (approx. 900) from the Central European Angiosperm flora. Further, correlated evolution of ploidy and clonal traits was examined to determine whether or not polyploidy precedes vegetative reproduction. The analyses showed that polyploidy is strongly associated with vegetative reproduction, whereas diploids rely more on seed reproduction. The rate of polyploid speciation is strongly enhanced by the existence of vegetative reproduction (namely extensive lateral spread), whereas the converse is not true. These findings confirm the old hypothesis that polyploids can rely on vegetative reproduction which thus may save many incipient polyploids from extinction. A closer analysis also shows that the sequence of events begins with development of vegetative reproduction, which is then followed by polyploidy. Vegetative reproduction is thus likely to play an important role in polyploid speciation.

Czech name

—

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

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/GA16-19245S" target="_blank" >GA16-19245S: Response to disturbance as the key process in evolution of herbaceous and clonal growth forms: linking phylogenetic and experimental approaches</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Name of the periodical

Annals of Botany

ISSN

0305-7364

e-ISSN

—

Volume of the periodical

120

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

341-349

UT code for WoS article

000407118500013

EID of the result in the Scopus database

2-s2.0-85026447917