Phylogeography of Icelandic <i>Agrostis</i> (Poaceae) Reveals a New Geothermal Lineage

Nuppenau, Jan-Niklas; Höglund, Elsa; Minadakis, Nikolaos; Kainulainen, Kent; Humphreys, Aelys M.

doi:10.1086/725164

International Journal of Plant Sciences

2023

DOI: 10.1086/725164

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Phylogeography of Icelandic Agrostis (Poaceae) Reveals a New Geothermal Lineage

Jan-Niklas Nuppenau¹,

Elsa Höglund²,

Nikolaos Minadakis³

et al.

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2024

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Recent Advances in Adaptation Genomics in Fumarole Fields: An Overlooked Extreme Environment

Nagasawa,

Setoguchi,

Sakaguchi

2024

Plant and Cell Physiology

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Extreme environments and plants thriving in them, known as extremophytes, offer promising platforms for studying the diverse adaptive mechanisms that have evolved in plants. However, research on adaptation to extreme environments is still limited to those environments where model species or their relative can survive. Fumarole fields, an extreme environment often overlooked, are characterized by multi-hazardous abiotic stressors, including atmospheric contamination (high concentration of H2S, SO2, and CO2), high soil temperature (~60℃), and strong soil acidification (pH=2–3). These conditions make fumarole fields a rich source for studying stress tolerance mechanisms in plants. In this review, we highlight the recent ecological, physiological, and genomic advances involved in fumarole field adaptation, and discuss the forward avenues. The studies outlined in this paper demonstrate that the extreme levels of abiotic stressors found in fumarole fields make them unparalleled field laboratories for studying the unknown stress tolerance mechanisms, warranting further genomic assessments. Some studies succeeded in identifying genes associated with fumarole field adaptation and shedding light on evolutionary implications; however, they have also encountered challenges such as limited genome resources and high genetic differentiation from related species and/or neighboring populations. To overcome such difficulties, we propose integrating ecophysiological and genomic approaches, drawing from the recent studies in other extreme environments. We expect that further studies in the fumarole fields will contribute to broadening our general knowledge of the limits of life.

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Recent Advances in Adaptation Genomics in Fumarole Fields: An Overlooked Extreme Environment

Nagasawa,

Setoguchi,

Sakaguchi

2024

Plant and Cell Physiology

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show abstract

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Phylogeography of Icelandic Agrostis (Poaceae) Reveals a New Geothermal Lineage

Cited by 1 publication

References 86 publications

Recent Advances in Adaptation Genomics in Fumarole Fields: An Overlooked Extreme Environment

Recent Advances in Adaptation Genomics in Fumarole Fields: An Overlooked Extreme Environment

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