Sentences with phrase «duplication events»

The phrase "duplication events" refers to instances in which certain genes or segments of DNA are copied, resulting in additional or extra copies of that genetic material in an organism's genome. Full definition
This whole genome duplication event probably occurred in the ancestor to all angiosperms, about 240 million years ago, the Amborella Genome Project reports today in Science.
These fish have two distinct copies of the SWS2 gene — SWS2A and SWS2B, which arose from an ancient gene duplication event 198 million years ago in the ancestor of all spiny - finned fish.
Rather than supporting a genome duplication event at the time when yeast evolved to have twice the number of chromosomes, their data indicated that the duplicated genes had begun to diverge long before.
The Amborella Genome Project (p. 10.1126 / science.1241089) was able to infer that a whole - genome duplication event preceded the evolution of this ancestral angiosperm, and Rice et al. (p. 1468) found that numerous genes in the mitochondrion were acquired by horizontal gene transfer from other plants, including almost four entire mitochondrial genomes from mosses and algae.
Rather then being the result of the reductive evolution seen in other intracellular bacteria, these pseudogenes appear to be the product of ongoing sequence duplication events.
The large size of the octopus genome was initially attributed to whole genome duplication events during evolution, which can lead to increased genomic diversity and complexity.
Besides assessing the taxonomic distribution for each herpesvirus protein, we computationally inferred gene duplication events and performed a comparative protein domain architecture analysis for every protein family.
Such «whole genome duplications» are now known to be surprisingly widespread; for instance, we know that whole genome duplications were important in the early evolution of vertebrates (our own genomes bear the hallmarks of two separate ancient whole genome duplication events) and that it is a very common phenomenon in plants, especially cultivated ones such as wheat.
To their surprise, they found that the age of some duplicated genes seemed to be much greater than that predicted by the theory for the whole genome duplication event.
I think, you know, biologists have been onto this for several decades and, you know, we've been looking at the signatures, sort of the outcome of these duplications event [s]; you know, when we look at human genes and you know genes of lots of other organisms that are important to us, you know, medically or agriculturally, things like that; but really, teasing apart sort of the step by step process of how one gene becomes two different genes, that's been hard to do experimentally.
The other two genes appeared to be paralogs — genes that are the result of a duplication event in the DNA.
The large genome size of the octopus was previously believed to be the result of whole genome duplication events, which can also be seen in the genomes of vertebrates, including humans.
Unlike many large and complex crop genomes, there is no evidence to support a whole - genome duplication event.
This technique, however, becomes quite challenging when the species of interest has undergone whole genome duplication events (i.e., polyploidy), as is common in many plant lineages.
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