Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1186/s40168-021-01021-0 |
| Pre-Cambrian roots of novel Antarctic cryptoendolithic bacterial lineages | |
| Albanese, Davide; Coleine, Claudia; Rota-Stabelli, Omar; Onofri, Silvano; Tringe, Susannah G.; Stajich, Jason E.; Selbmann, Laura; Donati, Claudio | |
| 通讯作者 | Selbmann, L (corresponding author), Univ Tuscia, Dept Ecol & Biol Sci, I-01100 Viterbo, Italy. ; Stajich, JE (corresponding author), Univ Calif Riverside, Dept Microbiol & Plant Pathol, Watkins Dr 3401, Riverside, CA 92507 USA. ; Stajich, JE (corresponding author), Univ Calif Riverside, Inst Integrat Genome Biol, Watkins Dr 3401, Riverside, CA 92507 USA. |
| 来源期刊 | MICROBIOME
 |
| ISSN | 2049-2618 |
| 出版年 | 2021 |
| 卷号 | 9期号:1 |
| 英文摘要 | Background: Cryptoendolithic communities are microbial ecosystems dwelling inside porous rocks that are able to persist at the edge of the biological potential for life in the ice-free areas of the Antarctic desert. These regions include the McMurdo Dry Valleys, often accounted as the closest terrestrial counterpart of the Martian environment and thought to be devoid of life until the discovery of these cryptic life-forms. Despite their interest as a model for the early colonization by living organisms of terrestrial ecosystems and for adaptation to extreme conditions of stress, little is known about the evolution, diversity, and genetic makeup of bacterial species that reside in these environments. Using the Illumina Novaseq platform, we generated the first metagenomes from rocks collected in Continental Antarctica over a distance of about 350 km along an altitudinal transect from 834 up to 3100 m above sea level (a.s.l.). Results: A total of 497 draft bacterial genome sequences were assembled and clustered into 269 candidate species that lack a representative genome in public databases. Actinobacteria represent the most abundant phylum, followed by Chloroflexi and Proteobacteria. The Candidatus Jiangella antarctica has been recorded across all samples, suggesting a high adaptation and specialization of this species to the harshest Antarctic desert environment. The majority of these new species belong to monophyletic bacterial clades that diverged from related taxa in a range from 1.2 billion to 410 Ma and are functionally distinct from known related taxa. Conclusions: Our findings significantly increase the repertoire of genomic data for several taxa and, to date, represent the first example of bacterial genomes recovered from endolithic communities. Their ancient origin seems to not be related to the geological history of the continent, rather they may represent evolutionary remnants of pristine clades that evolved across the Tonian glaciation. These unique genomic resources will underpin future studies on the structure, evolution, and function of these ecosystems at the edge of life. |
| 英文关键词 | Antarctica Extremophiles Cryptoendolithic communities Bacteria Evolution Adaptation Metagenomics MAG Functionality |
| 类型 | Article |
| 语种 | 英语 |
| 开放获取类型 | Green Published, gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000630749100001 |
| WOS类目 | Microbiology |
| WOS研究方向 | Microbiology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/351137 |
| 作者单位 | [Albanese, Davide; Rota-Stabelli, Omar; Donati, Claudio] Fdn Edmund Mach, Res & Innovat Ctr, Via E Mach 1, I-38098 San Michele All Adige, Italy; [Coleine, Claudia; Onofri, Silvano; Selbmann, Laura] Univ Tuscia, Dept Ecol & Biol Sci, I-01100 Viterbo, Italy; [Tringe, Susannah G.] Joint Genome Inst, Dept Energy, One Cyclotron Rd, Berkeley, CA 94720 USA; [Stajich, Jason E.] Univ Calif Riverside, Dept Microbiol & Plant Pathol, Watkins Dr 3401, Riverside, CA 92507 USA; [Stajich, Jason E.] Univ Calif Riverside, Inst Integrat Genome Biol, Watkins Dr 3401, Riverside, CA 92507 USA; [Selbmann, Laura] Italian Antarctic Natl Museum MNA, Mycol Sect, Via Porto Antico, I-16128 Genoa, Italy |
| 推荐引用方式 GB/T 7714 | Albanese, Davide,Coleine, Claudia,Rota-Stabelli, Omar,et al. Pre-Cambrian roots of novel Antarctic cryptoendolithic bacterial lineages[J],2021,9(1). |
| APA | Albanese, Davide.,Coleine, Claudia.,Rota-Stabelli, Omar.,Onofri, Silvano.,Tringe, Susannah G..,...&Donati, Claudio.(2021).Pre-Cambrian roots of novel Antarctic cryptoendolithic bacterial lineages.MICROBIOME,9(1). |
| MLA | Albanese, Davide,et al."Pre-Cambrian roots of novel Antarctic cryptoendolithic bacterial lineages".MICROBIOME 9.1(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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