Out of the Water: Origin and Diversification of the LBD Gene Family
| Autor: | Douglas E. Soltis, André S. Chanderbali, Pamela S. Soltis, Fengmei He |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Plant evolution
biology Charophyceae fungi food and beverages Diversification (marketing strategy) biology.organism_classification Genes Plant Evolution Molecular Evolutionary biology Phylogenomics Botany Genetics Gene family Embryophyta Viridiplantae Molecular Biology Gene Ecology Evolution Behavior and Systematics Function (biology) hormones hormone substitutes and hormone antagonists Discoveries |
| Zdroj: | Molecular biology and evolution. 32(8) |
| ISSN: | 1537-1719 |
| Popis: | LBD (lateral organ boundaries domain) genes are essential to the developmental programs of many fundamental plant organs and function in some of the basic metabolic pathways of plants. However, our historical perspective on the roles of LBD genes during plant evolution has, heretofore, been fragmentary. Here, we show that the LBD gene family underwent an initial radiation that established five gene lineages in the ancestral genome of most charophyte algae and land plants. By inference, the LBD gene family originated after the emergence of the green plants (Viridiplantae), but prior to the diversification of most extant streptophytes. After this initial radiation, we find limited instances of gene family diversification in land plants until successive rounds of expansion in the ancestors of seed plants and flowering plants. The most dynamic phases of LBD gene evolution, therefore, trace to the aquatic ancestors of embryophytes followed by relatively recent lineage-specific expansions on land. |
| Databáze: | OpenAIRE |
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