background preloader

Uddøde arter

Facebook Twitter

Genetiker drømmer om mammutter. TEDxDeExtinction. The GreatPassenger PigeonComeback Male passenger pigeon, painting by Tim Hough.


News & updates on the project using museum-specimen DNA to bring this iconic species all the way back. Extinction Continuum Learn about the genetic situation of a variety of endangered and extinct animals and how biotechnologies might be applied. A continuum of genetic predicaments is matched with a continuum of genetic rescue techniques.Explore the interactive continuum. Criteria Checklist Can a particular extinct species be revived? Never Say Never Extinct heath hen Gazette archives “Heath Hen May Get Its Boom Back” Revive & Restore posed the question of bringing the heath hen back to Martha’s Vineyard. TEDx Videos On March 15, 2013 at National Geographic, twenty-five extraordinary talks by leading scientists and conservationists were captured on video on the concept of de-extinction. Watch TEDxDeExtinction Videos Stewart Brand’s TED Talk Become a Supporter JOIN our growing band of supporters today!

Revivors Mailing List. Genetic rescue for endangered and extinct species. De-Extinction - Bringing Extinct Species Back to Life - Pictures, News, TEDx Conference. BioMed Central. CRISPR: A game-changing genetic engineering technique – Science in the News. Have you heard?

CRISPR: A game-changing genetic engineering technique – Science in the News

A revolution has seized the scientific community. Within only a few years, research labs worldwide have adopted a new technology that facilitates making specific changes in the DNA of humans, other animals, and plants. Compared to previous techniques for modifying DNA, this new approach is much faster and easier. This technology is referred to as “CRISPR,” and it has changed not only the way basic research is conducted, but also the way we can now think about treating diseases [1,2]. What is CRISPR CRISPR is an acronym for Clustered Regularly Interspaced Short Palindromic Repeat. How does it work? Figure 1 ~ The steps of CRISPR-mediated immunity. Interspersed between the short DNA repeats of bacterial CRISPRs are similarly short variable sequences called spacers (FIGURE 1). The CRISPR immune system works to protect bacteria from repeated viral attack via three basic steps [5]: What are some applications of the CRISPR system? In Industry In the Lab In Medicine References: 1. 2.

A method for positive forensic identification of samples from extremely low-coverage sequence data. Two loci are in linkage disequilibrium (LD) if their alleles are not randomly associated [23].

A method for positive forensic identification of samples from extremely low-coverage sequence data

As the name implies, LD can occur because alleles that are physically linked and nearby on chromosomes are often co-inherited. This non-random association implies that observing the allelic state of one locus provides some information about the state of the other. Our approach is based on the idea that observations of alleles made in one sample consistently provide information about the allelic state in another sample via LD if and only if the samples are from the same individual (or from a genetically identical individual, i.e., a monozygotic twin). On the other hand, when comparing data from samples from unrelated individuals, each sample provides no predictive information about alleles in the other sample. Consider a pair of SNP loci in physical proximity on the same chromosome in linkage disequilibrium (Fig. 1). Reconstructing genome evolution in historic samples of the Irish potato famine pathogen. Mammoth 2.0: will genome engineering resurrect extinct species?

Beth ShapiroAffiliated withDepartment of Ecology and Evolutionary Biology and UCSC Genomics Institute, University of California Santa Cruz Email author 10.1186/s13059-015-0800-4 Copyright information Abstract It is impossible to ‘clone’ species for which no living cells exist.

Mammoth 2.0: will genome engineering resurrect extinct species?

Genome editing may therefore provide the only means to bring extinct species — or, more accurately, extinct traits — back to life. Abbreviations clustered regularly interspaced short palindromic repeats Introduction Coincident with the release of the latest in the ‘Jurassic Park’ series of movies, George Church’s lab at Harvard University’s Wyss Institute reported their first successes in editing living elephant cells so that they contain gene sequences from the elephant’s recently extinct relative, the woolly mammoth [1].

According to George Church, his team’s goal is to create elephants that have mammoth-derived adaptations to cold climates. Existing technologies Next steps A new tool for biodiversity conservation. How to Clone a Mammoth: The Science of De-Extinction - Beth Shapiro - Google Books.