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Parallel local adaptation to an alpine environment in Arabidopsis arenosa

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F22%3A00562614" target="_blank" >RIV/67985939:_____/22:00562614 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/00216208:11310/22:10457483 RIV/00216224:14740/22:00128560

  • Výsledek na webu

    <a href="https://doi.org/10.1111/1365-2745.13961" target="_blank" >https://doi.org/10.1111/1365-2745.13961</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1111/1365-2745.13961" target="_blank" >10.1111/1365-2745.13961</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Parallel local adaptation to an alpine environment in Arabidopsis arenosa

  • Popis výsledku v původním jazyce

    Parallel local adaptation, that is, when distinct genetic lineages independently adapt to the same selective environment, provides strong evidence for the action of natural selection. A few cases of parallel local adaptation were reported in plants but underlying mechanisms promoting or preventing the parallel response, such as the balance between migration and selection, were rarely quantified. Here, we conducted a transplant experiment to test whether distinct foothill-alpine population pairs of Arabidopsis arenosa exhibited similar adaptive responses to a contrasting alpine environment. We further investigated selection and migration patterns in these populations. Seedlings of 16 foothill and alpine populations of A. arenosa from four distinct mountain regions (one occupied by diploid and three by tetraploid populations) were transplanted into one low- and one high-elevation site. We recorded fitness proxies over two growing seasons to test whether the elevation-of-origin advantage was manifested in the same way across the four regions of origin. Then, we quantified the strength of selection on the traits at each transplantation site and used coalescent simulations to estimate past gene flow intensity between each pair of foothill and alpine populations in each region. We demonstrated that the four pairs of populations exhibited similar adaptive responses to elevation difference in terms of survival, number of flowering plants, stem height and accumulation of above-ground dry biomass. The other traits (rosette size, number of leaves, stems and flowers) exhibited rather regional-specific patterns. In addition, we found minor effects of ploidy level on the fitness proxies recorded. Our selection and migration analysis revealed that parallel local adaptation was probably achieved by differential selective pressure at low versus high elevation in combination with lack or limited gene flow between foothill and alpine populations. Synthesis. We show that the previously documented strong morphological and genetic distinctness of alpine A. arenosa compared to their foothill counterparts, which has been hypothesized to be driven by natural selection, is indeed mirrored in fitness differences consistent with parallel local adaptation. Our results provide experimental support for the repeatability of adaptive evolution and highlight the prominent role of divergent selection.

  • Název v anglickém jazyce

    Parallel local adaptation to an alpine environment in Arabidopsis arenosa

  • Popis výsledku anglicky

    Parallel local adaptation, that is, when distinct genetic lineages independently adapt to the same selective environment, provides strong evidence for the action of natural selection. A few cases of parallel local adaptation were reported in plants but underlying mechanisms promoting or preventing the parallel response, such as the balance between migration and selection, were rarely quantified. Here, we conducted a transplant experiment to test whether distinct foothill-alpine population pairs of Arabidopsis arenosa exhibited similar adaptive responses to a contrasting alpine environment. We further investigated selection and migration patterns in these populations. Seedlings of 16 foothill and alpine populations of A. arenosa from four distinct mountain regions (one occupied by diploid and three by tetraploid populations) were transplanted into one low- and one high-elevation site. We recorded fitness proxies over two growing seasons to test whether the elevation-of-origin advantage was manifested in the same way across the four regions of origin. Then, we quantified the strength of selection on the traits at each transplantation site and used coalescent simulations to estimate past gene flow intensity between each pair of foothill and alpine populations in each region. We demonstrated that the four pairs of populations exhibited similar adaptive responses to elevation difference in terms of survival, number of flowering plants, stem height and accumulation of above-ground dry biomass. The other traits (rosette size, number of leaves, stems and flowers) exhibited rather regional-specific patterns. In addition, we found minor effects of ploidy level on the fitness proxies recorded. Our selection and migration analysis revealed that parallel local adaptation was probably achieved by differential selective pressure at low versus high elevation in combination with lack or limited gene flow between foothill and alpine populations. Synthesis. We show that the previously documented strong morphological and genetic distinctness of alpine A. arenosa compared to their foothill counterparts, which has been hypothesized to be driven by natural selection, is indeed mirrored in fitness differences consistent with parallel local adaptation. Our results provide experimental support for the repeatability of adaptive evolution and highlight the prominent role of divergent selection.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    10611 - Plant sciences, botany

Návaznosti výsledku

  • Projekt

    Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2022

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název periodika

    Journal of Ecology

  • ISSN

    0022-0477

  • e-ISSN

    1365-2745

  • Svazek periodika

    110

  • Číslo periodika v rámci svazku

    10

  • Stát vydavatele periodika

    GB - Spojené království Velké Británie a Severního Irska

  • Počet stran výsledku

    14

  • Strana od-do

    2448-2461

  • Kód UT WoS článku

    000826746600001

  • EID výsledku v databázi Scopus

    2-s2.0-85135060960