Arabidopsis halleri: a perennial model system for studying population differentiation and local adaptation

Honjo, Mie N.; Kudoh, Hiroshi

doi:10.1093/aobpla/plz076

Cited by 47 publications

(54 citation statements)

References 103 publications

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“…For this reason, they have been studied extensively to the point of becoming experimental models (Cobbett, 2003;Verbruggen et al, 2009b;Honjo and Kudoh, 2019). These include Arabidopsis halleri, Noccaea caerulescens (Brassicaceae) or Sedum alfredii (Crassulaceae).…”

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confidence: 99%

Mechanisms of Cadmium Accumulation in Plants

Sterckeman

Thomine

2020

Critical Reviews in Plant Sciences

143

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Cadmium is a non-essential trace metal, which is highly toxic to nearly all living organisms. Soil pollution causes Cd contamination of crops, thereby rendering plant products responsible for the chronic low level Cd over-exposure of numerous populations in the world. For this reason, Cd accumulation in plants has been studied for about five decades now. The research first focused on the relationships between plant and soil Cd levels, on the factors of the metal availability in soil, as well as the root uptake processes. Cd distribution in plant organs was also investigated, first using a macroscopic and eco-physiological approach, then with the help of molecular biology tools, at both tissue and cell scale. Cadmium has no biological function and hijacks the transport pathways of micronutrients such as Fe, Mn or Zn, in order to enter the plant through the roots and be distributed to all its organs. The study of the genes that control the influx and efflux of the Cd 2 + ion in the cytosol, vacuoles and vascular tissues has significantly contributed to the understanding of the metal root uptake and of its transfer to the aerial parts. However, the mechanisms responsible for its distribution to the different aboveground tissues and specially to fruits and seeds have yet to be clarified. This review summarizes current knowledge in order to present a detailed overview of Cd transport and storage, from the rhizosphere to the different organs and tissues of the plant.

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confidence: 99%

Mechanisms of Cadmium Accumulation in Plants

Sterckeman

Thomine

2020

Critical Reviews in Plant Sciences

143

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“…The perennial life cycle in Arabidopsis halleri ssp. gemmifera ( A. halleri ) is unique in that all developing meristems first become reproductive, then revert to the vegetative phase by developing aerial rosettes, which then propagate clonally ( Aikawa et al, 2010 ; Satake et al, 2013 ; Nishio et al, 2016 , 2020a , b ; Honjo and Kudoh, 2019 ). These characteristics confer experimental advantages, especially in studies in the natural environment.…”

Section: Initial Insights From Perennial Vernalizationmentioning

confidence: 99%

The Flowering Season-Meter at FLOWERING LOCUS C Across Life Histories in Crucifers

2021

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Many plant species overwinter before they flower. Transition to flowering is aligned to the seasonal transition as a response to the prolonged cold in winter by a process called vernalization. Multiple well-documented vernalization properties in crucifer species with diverse life histories are derived from environmental regulation of a central inhibitor of the flowering gene, Flowering Locus C (FLC). Episode(s) of flowering are prevented during high FLC expression and enabled during low FLC expression. FLC repression outlasts the winter to coincide with spring; this heterochronic aspect is termed “winter memory.” In the annual Arabidopsis thaliana, winter memory has long been associated with the highly conserved histone modifiers Polycomb and Trithorax, which have antagonistic roles in transcription. However, there are experimental limitations in determining how dynamic, heterogenous histone modifications within the FLC locus generate the final transcriptional output. Recent theoretical considerations on cell-to-cell variability in gene expression and histone modifications generating bistable states brought support to the hypothesis of chromatin-encoded memory, as with other experimental systems in eukaryotes. Furthermore, these advances unify multiple properties of vernalization, not only the winter memory. Similarly, in the perennial Arabidopsis halleri ssp. gemmifera, recent integration of molecular with mathematical and ecological approaches unifies FLC chromatin features with the all-year-round memory of seasonal temperature. We develop the concept of FLC season-meter to combine existing information from the contrasting annual/perennial and experimental/theoretical sectors into a transitional framework. We highlight simplicity, high conservation, and discrete differences across extreme life histories in crucifers.

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“…For reasons of comparability, specific topics were initially addressed using sister species from within the genus Arabidopsis .Arabidopsis halleri , for example, contributed to understanding the molecular basis of heavy-metal tolerance (Hanikenne et al, 2008), and has been developed into a perennial model system for population ecology and adaptation (reviewed in Honjo & Kudoh, 2019).Arabidopsis arenosa originally served as a model for polyploidy associated with hybridization (Monnahan et al, 2019;Yant & Bomblies, 2017), and more recently for evolutionary ecological genomics (Kolář et al, 2016). Arabidopsis lyrata has attracted attention for studies on mating system shifts (Mable, Dart, Berardo, & Witham, 2005), phylogeography (Schmickl, Jørgensen, Brysting, & Koch, 2010), adaptation (Kemi et al, 2013) and population genomics (Hämälä & Savolainen, 2019).…”

Section: Introductionmentioning

confidence: 99%

Arabis alpina: a perennial model plant for ecological genomics and life-history evolution

Wötzel

Andrello

Albani

et al. 2021

Preprint

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Many model organisms have obtained a prominent status due to an advantageous combination of their life-history characteristics, genetic properties and also practical considerations. In non-crop plants, Arabidopsis thaliana is the most renowned model and has been used as study system to elucidate numerous biological processes at the molecular level. Once a complete genome sequence was available, research has markedly accelerated and further established A. thaliana as the reference to stimulate studies in other species with different biology. Within the Brassicaceae family, the arctic-alpine perennial Arabis alpina has become a model complementary to A. thaliana to study life-history evolution and ecological genomics in harsh environments. In this review, we provide an overview of the properties that facilitated the rapid emergence of A. alpina as a plant model. We summarize the evolutionary history of A. alpina, including the diversification of its mating system, and discuss recent progress in the molecular dissection of developmental traits that are related to its perennial life history and environmental adaptation. We indicate open questions from which future research might be developed in other Brassicaceae species or more distantly related plant families.

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Arabidopsis halleri: a perennial model system for studying population differentiation and local adaptation

Cited by 47 publications

References 103 publications

Mechanisms of Cadmium Accumulation in Plants

Mechanisms of Cadmium Accumulation in Plants

The Flowering Season-Meter at FLOWERING LOCUS C Across Life Histories in Crucifers

Arabis alpina: a perennial model plant for ecological genomics and life-history evolution

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