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The Physcomitrella genome reveals evolutionary insights into the conquest of land by plants.
- Source :
-
Science (New York, N.Y.) [Science] 2008 Jan 04; Vol. 319 (5859), pp. 64-9. Date of Electronic Publication: 2007 Dec 13. - Publication Year :
- 2008
-
Abstract
- We report the draft genome sequence of the model moss Physcomitrella patens and compare its features with those of flowering plants, from which it is separated by more than 400 million years, and unicellular aquatic algae. This comparison reveals genomic changes concomitant with the evolutionary movement to land, including a general increase in gene family complexity; loss of genes associated with aquatic environments (e.g., flagellar arms); acquisition of genes for tolerating terrestrial stresses (e.g., variation in temperature and water availability); and the development of the auxin and abscisic acid signaling pathways for coordinating multicellular growth and dehydration response. The Physcomitrella genome provides a resource for phylogenetic inferences about gene function and for experimental analysis of plant processes through this plant's unique facility for reverse genetics.
- Subjects :
- Adaptation, Physiological
Animals
Arabidopsis genetics
Arabidopsis physiology
Bryopsida physiology
Chlamydomonas reinhardtii genetics
Chlamydomonas reinhardtii physiology
Computational Biology
DNA Repair
Dehydration
Gene Duplication
Genes, Plant
Magnoliopsida genetics
Magnoliopsida physiology
Metabolic Networks and Pathways genetics
Multigene Family
Oryza genetics
Oryza physiology
Phylogeny
Plant Proteins genetics
Plant Proteins physiology
Repetitive Sequences, Nucleic Acid
Retroelements
Sequence Analysis, DNA
Signal Transduction genetics
Biological Evolution
Bryopsida genetics
Genome, Plant
Subjects
Details
- Language :
- English
- ISSN :
- 1095-9203
- Volume :
- 319
- Issue :
- 5859
- Database :
- MEDLINE
- Journal :
- Science (New York, N.Y.)
- Publication Type :
- Academic Journal
- Accession number :
- 18079367
- Full Text :
- https://doi.org/10.1126/science.1150646