Mosses Make Two Different Plants From the Same Genome, and a Single Gene Can Make the Difference
One of the most astonishing secrets in biology is this: every plant you see makes two different plants from the same genome. And, scientists recently reported, a single gene from an ancient, powerful lineage can make the difference.
The Genome Compiler is an IDE for DNA projects for all you DIYbio enthusiasts. Previously. Previously.
Icky face-pooping flesh mites are only the tip of the iceberg. You've heard that your gut bacteria are necessary to help you digest, meaning not all germs are bad. Without them, we couldn't digest healthily. But stop and look at how far our interconnectedness with other forms of life goes: 1. Human DNA itself is at least 8.3% ancient viruses; without one of these viruses you could never have been born. 2. Mitochondria in human cells originated when the same type of bacteria that causes typhus disease raided one of our cellular ancestors and instead of hijacking it was pressed into service. (The same origin as chloroplasts in plants from cyanobacteria). 3. Far more of the cells in your body are non-human microorganisms than actual human cells. This relationship is not just interconnectedness. This is integration. [more inside]
Omes have a long history and describe general interactions of biological information objects in various omes. But not all omes are real omes. Some have a problem with omes as neologisms.
"The ability to design and create new forms of life marks a turning-point in the history of our species and our planet." - Freeman Dyson, on the J.C. Venter Institute's creation of a cell controlled by a synthetic genome. We are now in the business of engineering life.
Neandertals are the closest ancestral relatives to modern humans. Today, Nature published a special report on the Neandertal genome, for which a draft sequencing of three billion nucleotides has been completed. This high-throughput sequencing project shows how the genetic relationship between Neandertals and modern Europeans and Asians suggests localized interbreeding between the two species roughly 40-80,000 years ago, complicating the common "out-of-Africa" story of how modern humans originated. Additional research extends this low-coverage, first-pass sequencing with a microarray approach that uncovers specific differences between the human and Neandertal genomes.
Followup to this post: A US District Court has ruled that Myriad Genetic's patents on breast cancer genes BRCA1 and BRCA2, which allow them to hold exclusive rights to a widely used genetic test for inherited breast and ovarian cancer susceptibility, are invalid. Genomics Law Report analyzes the ruling in two posts. The decision is likely to be challenged in a legal appeal — but if upheld, it could have huge implications for the biotechnology industry. [more inside]
We may soon be able to clone Neanderthals. But should we? An essay from Archaeology Magazine examines the ethical, scientific and legal ramifications. (Via Heather Pringle's Time Machine blog, where essay author Zach Zorich posted a reply and elicited a response.) [more inside]
On behalf of medical organizations, universities, & individual patients, pathologists and genetics researchers, the ACLU has filed a lawsuit against Utah-based Myriad Genetics and the US Patent and Trademark Office. Myriad holds the US patents to the BRCA1 and BRCA2 genes, associated with hereditary causes of breast and ovarian cancers. Their patents guarantee the company the right to prevent anyone else from testing or studying those genes, which the ACLU says is unconstitutional and inhibits researchers from finding treatments and cures. [more inside]
A more efficient microbe genome. A more efficient sorting algorithm. A more efficient keyboard layout.
"There are only a few hundred genes that we have in the human genome that are not in the mouse genome,"
"There are only a few hundred genes that we have in the human genome that are not in the mouse genome," says Craig Venter, chief scientific officer at Celera Genomics. Information on the human genome released today reveals that there are far fewer genes than first thought - humans only have double the amount that worms and flies do. [more inside...]