Sentences with phrase «genome of the common ancestor»

Pevzner likens the genome of the common ancestor of mice and men to a deck of cards.

A group of researchers has re-created with remarkable accuracy part of the genome of the common ancestor of almost all placental mammals, a small shrew - like creature that prowled the forests of what...

Although the diversity of sponges and their uncertain phylogeny make it doubtful that any single species can reveal the intricacies of early animal evolution, comparison of the A. queenslandica draft genome with sequences from other species can provide a conservative estimate of the genome of the common ancestor of all animals and the timing and nature of the genomic events that led to the origin and early evolution of animal lineages.

Not exact matches

It could have been that chimpanzees and human genomes showed no evidence of having a common ancestor.

Darwinian theory predicts that all genomes are related by descent, that we share common ancestors and so the genomes of all living things were derived from previous living things that were the common ancestors of current living things.

A third piece of evidence relates to the last common ancestor of the two known leprosy bacteria, which completed reductive evolution around 10 million years ago, resulting in a lean genome and the loss of free - living ability.

Before the divergence, the common bacteria ancestor had undergone a massive reductive evolution that resulted in inactivation of approximately 40 percent of all the genes in its genome.

By comparing the genomes of 203 vertebrates, they first traced the origin of KZFPs back to a common ancestor of tetrapods (four - legged animals) and coelacanth, a fish that evolved over 400 million years ago.

By analyzing the genomes of 28 bears — polar bears, including a roughly 120,000 - year - old specimen from Norway's Svalbard archipelago, as well as modern brown bears and black bears — the scientists in effect read back in time to a common ancestor at least four million years ago.

One of the outputs of the evolutionary analysis of genomes is the reconstruction of phylogenetic trees that map out common ancestors, their descendants, and the relationships between the different species.

As another example of the value of the Amborella genome, Joshua Der at Penn State noted «We estimate that at least 14,000 protein - coding genes existed in the last common ancestor of all flowering plants.

Applying equivalent methodologies to the Y chromosome and the mitochondrial genome, we estimate the time to the most recent common ancestor (TMRCA) of the Y chromosome to be 120 to 156 thousand years and the mitochondrial genome TMRCA to be 99 to 148 thousand years.

The Y chromosome and the mitochondrial genome have been used to estimate when the common patrilineal and matrilineal ancestors of humans lived.

«Their genomes are necessary to fill the gap in our understanding of the genes shared by the common ancestor of all deuterostomes,» explains Dr Oleg Simakov, lead author of this study.

He says this idea has «very profound» implications for the debate over the origins of bacterial genes that are present in the human genome but absent in our closest relatives (Science, 8 June, p. 1903): The amount of conjugation Waters detected is «high enough to readily explain» the possible infiltration of bacterial genesinto our DNA, meaning that conjugation could have happened quickly enough to add genes only to humans, in the years since they split from the common ancestor they shared with chimpanzees.

Oldest human genome dug up in Spain's pit of bones A 400,000 - year - old genome from ancient human bone could herald a missing - link species — taking us closer than ever to our common ancestor with Neanderthals.

Dunn compared the genomes of 71 animal species and found that the common ancestor of all the animals on the planet may not have been as simple as a sponge, as previously thought.

They found that the genomes had undergone quite a bit of rearrangement since the two species shared a common ancestor, at least 50 million years ago.

The comparative genomics analysis could «backtrack» the history of their genes, and showed that the two bacteria have diverged 13.9 million years ago from a common ancestor with a similar genome structure, and possibly a similar lifestyle.

The genome from this ancient specimen, which has been radiocarbon dated to 35,000 years ago, reveals that the Taimyr wolf represents the most recent common ancestor of modern wolves and dogs.

The adaptation evolved 8 million years ago in the common ancestor of carp and goldfish, via a process known as whole - genome duplication.

Venter, who pioneered the sequencing of microbial genomes, estimated that 50 to 100 more genomes needed to be sequenced to help triangulate back to the last common ancestor.