Symbiogenesis – the appearance of new behaviors, tissues, organs, organ systems, physiologies or species as a result of symbiont interaction – is the major source of evolutionary novelty in eukaryotes: animals, plants and fungi. ❋ Unknown (2009)
In any event, the probability that two or three origins of multicellularity simply arose by chance within eukaryotes as opposed to prokaryotes is somewhere on the order of 1/4 to 1/2, well below the general standards of statistical validity. ❋ Unknown (2009)
They draw on Hartman's and Federov's work on eukaryotic signature proteins (ESPs) – that is, proteins that are widespread in eukaryotes but with no homologs in prokaryotes. ❋ Unknown (2007)
The existence of obligate bacterial endosymbionts in some present eukaryotes is often presented as a substitute for a mechanism, but they remain bacteria and give not rise to new organelles. ❋ Unknown (2007)
That bacteria are reduced eukaryotes is one message you can take away from it. ❋ Unknown (2007)
Are you disputing that mutation rates in eukaryotes are or = 10E-9? ❋ Unknown (2007)
Starting from the beginning, the view of bacteria as reduced eukaryotes is easily compatible with front-loading seen in isolation, but I'm wary of it for other reasons. ❋ Unknown (2007)
For example, there are those who think the whole idea of horizontal gene transfer to multicelular eukaryotes is unproven. ❋ Unknown (2006)
Regulation of translation by antisense RNA also occurs in eukaryotes as was first demonstrated in 1993 when genes governing the development of the worm Caenorhabditis elegans were studied5,6. ❋ Unknown (2006)
Note that in eukaryotes, to which both flies, mice, and sea urchins belong, genes are initially off and need tool kit proteins to turn them on, whereas in bacteria, genes are initially on and need repressors to be turned off. ❋ Unknown (2005)
University of Massachusetts, Amherst, since 1988, drew upon earlier, ridiculed ideas when she first promulgated her theory, in the late 1960s, that cells with nuclei, which are known as eukaryotes and include all the cells in the human body, evolved as a result of symbiotic relationships among bacteria. ❋ By BRUCE WEBER (2011)
Whereas bacterial cells are relatively simple and known as prokaryotes, the newer cellular consortia, known as the eukaryotes, are the building blocks of plant and animal bodies, including our own. ❋ Martin A. Nowak (2011)
The big innovations of the eukaryotes were the diploid genome and meiosis. ❋ Unknown (2009)
Plants, fungi and animals are all in a group called the eukaryotes — distinguished by their advanced cellular machinery. ❋ Unknown (2007)
Animals belonged to a domain known as the eukaryotes, along with plants, fungi and protists. ❋ Unknown (2007)
Kidwell MG (2002) Transposable elements and the evolution of genome size in eukaryotes. ❋ Unknown (2005)
New research shows organisms called eukaryotes -- organisms of one or more complex cells that engage in sexual reproduction and are ancestors of the animal and plant species present today -- existed 50 million to 100 million years before that ice age and somehow did survive. ❋ Staq Mavlen (2006)
