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All Articles Tagged As: mitochondria
 | DNA from a rare, ancient polar bear fossil is yielding information about the response of the species to the devastation wrought by past climate changes. Analyses of the fossil's DNA reveals key pieces of the evolutionary history of both polar bears and brown bears. The fossil's DNA is, by far, the oldest mammal mitochondrial genome to be sequenced -- about twice the age of the oldest genome sequence from a woolly mammoth. ...> Full Article |
Monash University biochemists have described the process by which bacteria developed into more complex cells and found this crucial step happened much earlier in the evolutionary timeline than previously thought.
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 | Researchers excavating an ancient Roman cemetery were surprised when DNA testing on a set of bones revealed East Asian ancestry. ...> Full Article |
 | Some modern horses of Iberian origin are descendants from wild horses from the Early Iberian Neolithic, dated around 6,200 years ago. Ancient lineages are mainly represented in the Lusitano group C, constituted by some modern Lusitano and American horses. This is one of the conclusions obtained by a researchers' team from Spain, Sweden and Denmark and published in Molecular Ecology. ...> Full Article |
 | DNA that is left in the remains of long-dead plants, animals or humans allows a direct look into the history of evolution. ...> Full Article |
 | Penguins that died 44,000 years ago in Antarctica have provided extraordinary frozen DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those approaches have been routinely underestimating the age of many specimens by 200 to 600 percent. ...> Full Article |
Mutational patterns in mitochondrial genomes show functional importance of evolution and disease
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Researchers at the University of Leeds have devised a more accurate method of dating ancient human migration -- even when no corroborating archaeological evidence exists.
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Scientists at deCODE genetics have completed the largest study of ancient DNA from a single population ever undertaken. Analyzing mitochondrial DNA, which is passed from mother to offspring, from 68 skeletal remains, the study provides a detailed look at how a contemporary population differs from that of its ancestors. The study is published Jan. 16 in the open-access journal PLoS Genetics.
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 | A large genetic study of the extinct woolly mammoth has revealed that the species was not one large homogenous group, as scientists previously had assumed, and that it did not have much genetic diversity. ...> Full Article |
 | Researchers have revealed how women, as well as men, held positions of power in ancient Greece by right of birth. ...> Full Article |
 | Human DNA from dried excrement recovered from Oregon's Paisley Caves is the oldest found yet in the New World -- dating to 14,300 years ago, some 1,200 years before Clovis culture -- and provides apparent genetic ties to Siberia or Asia ...> Full Article |
 | Researchers to investigate the effects of natural mitochondrial variation on sperm traits and sperm competitive ability. ...> Full Article |
In a new paper in PLoS Biology, Michael Hofreiter from the Max Planck Institute for Evolutionary Anthropology in Germany, and colleagues from Switzerland and the United States, announce the sequencing of the complete mitochondrial genome of the mastodon (Mammut americanum), a recently extinct relative of the living elephants that diverged about 26 million years ago.
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Copper is an essential part of our lives. From copper pipes and wires - to important copper-containing proteins in the body, copper is necessary for healthy growth and neurological development. Researchers at the Montreal Neurological Institute at McGill University are studying how copper is processed in our bodies and its distinct role in early development.
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Researchers uncover DNA sequence of extinct ancient cattle
Small dogs originated in the Middle East
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Scientists create tiny RNA molecule with big implications for life's origins