NONADAPTIVE PROCESSES GOVERNING EARLY STAGES OF POLYPLOID EVOLUTION: INSIGHTS FROM A PRIMARY CONTACT ZONE OF RELICT SERPENTINE KNAUTIA ARVENSIS (CAPRIFOLIACEAE)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10283968" target="_blank" >RIV/00216208:11310/14:10283968 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3732/ajb.1400005" target="_blank" >http://dx.doi.org/10.3732/ajb.1400005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3732/ajb.1400005" target="_blank" >10.3732/ajb.1400005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

NONADAPTIVE PROCESSES GOVERNING EARLY STAGES OF POLYPLOID EVOLUTION: INSIGHTS FROM A PRIMARY CONTACT ZONE OF RELICT SERPENTINE KNAUTIA ARVENSIS (CAPRIFOLIACEAE)

Popis výsledku v původním jazyce

Premise of the study: Contact zones between polyploids and their diploid progenitors may provide important insights into the mechanisms of sympatric speciation and local adaptation. However, most published studies investigated secondary contact zones where the effects of genome duplication can be confounded by previous independent evolution of currently sympatric cytotypes. We compared genetically close diploid and autotetraploid serpentine cytotypes of Knautia arvensis (Caprifoliaceae) in a primary contact zone and evaluated the role of adaptive and nonadaptive processes for cytotype coexistence. Methods: DNA flow cytometry was used to determine ploidy distribution at various spatial scales (from across the entire contact zone to microgeographic). Habitat preferences of diploids and polyploids were assessed by comparing vegetation composition of nearby ploidy-uniform sites and by recording plant species immediately surrounding both cytotypes in mixed-ploidy plots. Key results: Tetrapl

Název v anglickém jazyce

NONADAPTIVE PROCESSES GOVERNING EARLY STAGES OF POLYPLOID EVOLUTION: INSIGHTS FROM A PRIMARY CONTACT ZONE OF RELICT SERPENTINE KNAUTIA ARVENSIS (CAPRIFOLIACEAE)

Popis výsledku anglicky

Premise of the study: Contact zones between polyploids and their diploid progenitors may provide important insights into the mechanisms of sympatric speciation and local adaptation. However, most published studies investigated secondary contact zones where the effects of genome duplication can be confounded by previous independent evolution of currently sympatric cytotypes. We compared genetically close diploid and autotetraploid serpentine cytotypes of Knautia arvensis (Caprifoliaceae) in a primary contact zone and evaluated the role of adaptive and nonadaptive processes for cytotype coexistence. Methods: DNA flow cytometry was used to determine ploidy distribution at various spatial scales (from across the entire contact zone to microgeographic). Habitat preferences of diploids and polyploids were assessed by comparing vegetation composition of nearby ploidy-uniform sites and by recording plant species immediately surrounding both cytotypes in mixed-ploidy plots. Key results: Tetrapl

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

<a href="/cs/project/7AMB13AT015" target="_blank" >7AMB13AT015: Heteroploidní a homoploidní hybridizace vzácných českých a rakouských endemických zástupců rodu chrastavec (Knautia)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

American Journal of Botany

ISSN

0002-9122

e-ISSN

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Svazek periodika

101

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

935-945

Kód UT WoS článku

000340453400004

EID výsledku v databázi Scopus

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