نتایج جستجو برای: angiosperms

تعداد نتایج: 5280  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
K U Winter A Becker T Münster J T Kim H Saedler G Theissen

The evolutionary origin of the angiosperms (flowering plants sensu stricto) is still enigmatic. Answers to the question of angiosperm origins are intimately connected to the identification of their sister group among extinct and extant taxa. Most phylogenetic analyses based on morphological data agree that among the groups of extant seed plants, the gnetophytes are the sister group of the angio...

Journal: :Molecular biology and evolution 2008
M Virginia Sanchez-Puerta Yangrae Cho Jeffrey P Mower Andrew J Alverson Jeffrey D Palmer

Horizontal gene transfer is surprisingly common among plant mitochondrial genomes. The first well-established case involves a homing group I intron in the mitochondrial cox1 gene shown to have been frequently acquired via horizontal transfer in angiosperms. Here, we report extensive additional sampling of angiosperms, including 85 newly sequenced introns from 30 families. Analysis of all availa...

Journal: :Phyton-international Journal of Experimental Botany 2022

During the evolution, plants acquired ability to synthesize different phenylpropanoid compounds like chlorogenic acid (CGA), which plays vital roles in resistance mechanisms abiotic stresses. These environmental factors, including heavy metal, cold, heat, ultraviolet (UV) light, drought, and salinity affect plant physiological processes, resulting massive losses of agriculture production. As ev...

Journal: :Biological Invasions 2021

Non-native organisms have invaded novel ecosystems for centuries, yet we only a limited understanding of why their impacts vary widely from minor to severe. Predicting the impact non-established or newly detected species could help focus biosecurity measures on with highest potential cause widespread damage. However, predictive models require an drivers and appropriate level at which these shou...

Journal: :American Journal of Botany 2004

Journal: :Proceedings of the National Academy of Sciences 1929

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