Rogue Scholar Beiträge

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Veröffentlicht in GigaBlog

A correspondence we have contributed to has just been published in the BMC Research Notes “Data standardization, sharing and publication series” on the adventures in data-citation and data-release practices surrounding the Sorghum genome that is available in our GigaDB database and that was published last year in Genome Biology . We use Sorghum as an example to highlight the issues surrounding data release and use strong words,

Veröffentlicht in Quintessence of Dust
Autor Stephen Matheson

Genetic hitchhiking is thought to be an inevitable result of strong positive selection in a population. The basic idea is that if a particular gene is strongly selected for (as opposed to selected against), then the chunk of the genome that carries that gene will become very common in the population.

Veröffentlicht in Quintessence of Dust
Autor Stephen Matheson

The next post will discuss recent evidence for genetic hitchhiking in humans. So, what do we mean when we say that genes can hitchhike? To make sense of this phenomenon, we first need to review chromosomes and sexual reproduction. Most people know that sexual reproduction creates offspring that are genetically distinct from both of the their parents.

Veröffentlicht in Quintessence of Dust
Autor Stephen Matheson

Defenders of intelligent design theory often dwell on the topic of "junk DNA," which has been molded into a masterpiece of folk science. The ID approach to "junk DNA" involves a fictional story about "Darwinism" discouraging its study, and a contorted and simplistic picture of a "debate" about whether "junk DNA" has "function." The fictional story is ubiquitous despite being repeatedly debunked.

Veröffentlicht in Quintessence of Dust
Autor Stephen Matheson

So why is it that I and many other biologists hypothesize that introns are mostly non-functional? (I'll assume that you've read the previous posts, and that you understand what it is that I mean when I challenge claims that introns are functional elements in an information-rich genome.