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An Antarctic lichen isolate (Cladonia borealis) genome reveals potential adaptation to extreme environments.
Cho, Minjoo; Lee, Seung Jae; Choi, Eunkyung; Kim, Jinmu; Choi, Soyun; Lee, Jun Hyuck; Park, Hyun.
Afiliación
  • Cho M; Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea.
  • Lee SJ; Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea.
  • Choi E; Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea.
  • Kim J; Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea.
  • Choi S; Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea.
  • Lee JH; Research Unit of Cryogenic Novel Material, Korea Polar Research Institute, Incheon, 21990, South Korea. junhyucklee@kopri.re.kr.
  • Park H; Department of Polar Sciences, University of Science and Technology, Incheon, 21990, South Korea. junhyucklee@kopri.re.kr.
Sci Rep ; 14(1): 1342, 2024 01 16.
Article en En | MEDLINE | ID: mdl-38228797
ABSTRACT
Cladonia borealis is a lichen that inhabits Antarctica's harsh environment. We sequenced the whole genome of a C. borealis culture isolated from a specimen collected in Antarctica using long-read sequencing technology to identify specific genetic elements related to its potential environmental adaptation. The final genome assembly produced 48 scaffolds, the longest being 2.2 Mbp, a 1.6 Mbp N50 contig length, and a 36 Mbp total length. A total of 10,749 protein-coding genes were annotated, containing 33 biosynthetic gene clusters and 102 carbohydrate-active enzymes. A comparative genomics analysis was conducted on six Cladonia species, and the genome of C. borealis exhibited 45 expanded and 50 contracted gene families. We identified that C. borealis has more Copia transposable elements and expanded transporters (ABC transporters and magnesium transporters) compared to other Cladonia species. Our results suggest that these differences contribute to C. borealis' remarkable adaptability in the Antarctic environment. This study also provides a useful resource for the genomic analysis of lichens and genetic insights into the survival of species isolated from Antarctica.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ascomicetos / Líquenes Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Corea del Sur Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ascomicetos / Líquenes Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Corea del Sur Pais de publicación: Reino Unido