Ecological and evolutionary consequences of ploidy-driven trait variation: Insights from Saxifraga oppositifolia L.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F25%3A00644535" target="_blank" >RIV/67985939:_____/25:00644535 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/25:43910765 RIV/00216208:11310/25:10500239

Výsledek na webu

<a href="https://doi.org/10.1139/as-2024-0020" target="_blank" >https://doi.org/10.1139/as-2024-0020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1139/as-2024-0020" target="_blank" >10.1139/as-2024-0020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ecological and evolutionary consequences of ploidy-driven trait variation: Insights from Saxifraga oppositifolia L.

Popis výsledku v původním jazyce

The patterns of polyploid speciation and the ecological consequences of ploidy-driven trait variation under the harsh climatic conditions of Arctic environments remain poorly understood. Here, we summarized data accumulated over the past decade in the Svalbard populations of mixed-ploidy arctic-alpine plant species, Saxifraga oppositifolia. Within a long-term field study, 768 permanently tagged plants were screened for ploidy level, trait variation and environmental associations. Svalbard populations of the species encompass a mixed-ploidy contact zone with the average cytotype frequencies 63%, 16% and 21% for diploids, triploids and tetraploids, respectively. Ploidy level of individuals is strongly associated with certain traits, including growth form, leaf mass area, flower investment, seed production and habitat preferences. Diploids usually dominate drier, warmer ridge habitats, whereas polyploids thrive in moister, thermally more stable areas. Interestingly, in spite of the harsh climatic conditions, we found rather low frequencies of unreduced (2n) gametes, indicating that enhanced 2n-gamete production is not necessarily a key driver of polyploid establishment in arctic species.

Název v anglickém jazyce

Ecological and evolutionary consequences of ploidy-driven trait variation: Insights from Saxifraga oppositifolia L.

Popis výsledku anglicky

The patterns of polyploid speciation and the ecological consequences of ploidy-driven trait variation under the harsh climatic conditions of Arctic environments remain poorly understood. Here, we summarized data accumulated over the past decade in the Svalbard populations of mixed-ploidy arctic-alpine plant species, Saxifraga oppositifolia. Within a long-term field study, 768 permanently tagged plants were screened for ploidy level, trait variation and environmental associations. Svalbard populations of the species encompass a mixed-ploidy contact zone with the average cytotype frequencies 63%, 16% and 21% for diploids, triploids and tetraploids, respectively. Ploidy level of individuals is strongly associated with certain traits, including growth form, leaf mass area, flower investment, seed production and habitat preferences. Diploids usually dominate drier, warmer ridge habitats, whereas polyploids thrive in moister, thermally more stable areas. Interestingly, in spite of the harsh climatic conditions, we found rather low frequencies of unreduced (2n) gametes, indicating that enhanced 2n-gamete production is not necessarily a key driver of polyploid establishment in arctic species.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Arctic Science

ISSN

2368-7460

e-ISSN

2368-7460

Svazek periodika

11

Číslo periodika v rámci svazku

March 26

Stát vydavatele periodika

CA - Kanada

Počet stran výsledku

26

Strana od-do

0020

Kód UT WoS článku

001454807400001

EID výsledku v databázi Scopus

2-s2.0-105001444055