이정은 (극지연구소) | 한빛사논문 > 한빛사

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조회339

이정은Jungeun Lee

극지연구소

Plant Cell Environ., Jan 01 2024, | https://doi.org/10.1111/pce.14793 Life under the snow: A year-round transcriptome analysis of Antarctic mosses in natural habitats provides insight into the molecular adaptation of plants under extreme environment

Jihyeon Yu ¹, Hyoungseok Lee^1,2, Sung Mi Cho ^1,2, Yelim Lee ^1,3, Dockyu Kim¹, Soon Gyu Hong ^1,2, Sang-Jong Park ⁴, Sang-Gyu Kim ⁵, Hongshi Jin ¹, Jungeun Lee¹

¹Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea.

²Polar Science, University of Science and Technology, Incheon, South Korea.

³School of Biological Sciences, Seoul National University, Seoul, South Korea.

⁴Division of Atmospheric Sciences, Korea Polar Research Institute, Incheon, South Korea.

⁵Department of Biological Sciences, Korea Advanced Institute for Science and Technology, Daejeon, Korea.

Correspondence: Jungeun Lee

Abstract

Mosses are vital components of ecosystems, exhibiting remarkable adaptability across diverse habitats from deserts to polar ice caps. Sanionia uncinata (Hedw.) Loeske, a dominant Antarctic moss survives extreme environmental condition through perennial lifecycles involving growth and dormancy alternation. This study explores genetic controls and molecular mechanisms enabling S. uncinata to cope with seasonality of the Antarctic environment. We analysed the seasonal transcriptome dynamics of S. uncinata collected monthly from February 2015 to January 2016 in King George Island, Antarctica. Findings indicate that genes involved in plant growth were predominantly upregulated in Antarctic summer, while those associated with protein synthesis and cell cycle showed marked expression during the winter-to-summer transition. Genes implicated in cellular stress and abscisic acid signalling were highly expressed in winter. Further, validation included a comparison of the Antarctic field transcriptome data with controlled environment simulation of Antarctic summer and winter temperatures, which revealed consistent gene expression patterns in both datasets. This proposes a seasonal gene regulatory model of S. uncinate to understand moss adaptation to extreme environments. Additionally, this data set is a valuable resource for predicting genetic responses to climatic fluctuations, enhancing our knowledge of Antarctic flora's resilience to global climate change.

논문정보

형식Research article
게재일2024년 01월 (BRIC 등록일 2024-01-15)
연구진국내 연구진
분야 생명과학 > 유전학

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