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The hornwort genome and early land plant evolution
- Source :
- Nature Plants, NATURE PLANTS
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- Hornworts, liverworts and mosses are three early diverging clades of land plants, and together comprise the bryophytes. Here, we report the draft genome sequence of the hornwort Anthoceros angustus. Phylogenomic inferences confirm the monophyly of bryophytes, with hornworts sister to liverworts and mosses. The simple morphology of hornworts correlates with low genetic redundancy in plant body plan, while the basic transcriptional regulation toolkit for plant development has already been established in this early land plant lineage. Although the Anthoceros genome is small and characterized by minimal redundancy, expansions are observed in gene families related to RNA editing, UV protection and desiccation tolerance. The genome of A. angustus bears the signatures of horizontally transferred genes from bacteria and fungi, in particular of genes operating in stress-response and metabolic pathways. Our study provides insight into the unique features of hornworts and their molecular adaptations to live on land.<br />A draft genome sequence of the hornwort Anthoceros augustus confirms the phylogenetic relationships among the three clades of bryophytes and provides insight into the unique characteristics of hornworts and their adaptations to live on land.
- Subjects :
- 0106 biological sciences
Identification
Anthoceros
Lineage (evolution)
Anthocerotophyta
Plant Science
Physcomitrella-patens
Gene
Insights
01 natural sciences
Genome
Article
Hornwort
Plant evolution
03 medical and health sciences
Monophyly
Sequence
Phylogeny
030304 developmental biology
Whole genome sequencing
0303 health sciences
biology
Reveals
Comparative genomics
Bryophytes
Biology and Life Sciences
15. Life on land
biology.organism_classification
Biological Evolution
Phylogenetics
Evolutionary biology
Multigene Family
Pentatricopeptide Repeat Proteins
Genetic redundancy
Prediction
Genome, Plant
Transcription Factors
010606 plant biology & botany
Subjects
Details
- ISSN :
- 20550278
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Nature Plants
- Accession number :
- edsair.doi.dedup.....be91c4d49a91dade15dbfbd4b51285c3