Tag Archives: Chimp

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30% of gorilla genome contradicts Darwinian prediction of human and ape phylogeny

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The latest episode of ID the Future discusses a recent (March 2012) paper about the gorilla genome.

Details:

On this episode of ID The Future, Casey Luskin discusses how the recent complete sequencing of the gorilla genome has challenged conventional thinking about human ancestry and explains what neo-Darwinists are doing to try to minimize the impact of this new information. Says Luskin: “There is not a clear signal of ancestral relationships that is coming out of the gorilla genome once you add it into the mix.” Tune in to hear about this interesting development!

The MP3 file is here.

Rather than summarize this short 10-minute podcast, I wanted to excerpt a post of Evolution News about it.

Excerpt: (links removed)

A whopping 30% of the gorilla genome — amounting to hundreds of millions of base pairs of gorilla DNA — contradicts the standard supposed evolutionary phylogeny of great apes and humans. That’s the big news revealed last week with the publication of the sequence of the full gorilla genome. But there’s a lot more to this story.

Eugenie Scott once taught us that when some evolutionary scientist claims some discovery “sheds light” on some aspect of evolution, we might suspect that’s evolution-speak for ‘this find really messed up our evolutionary theory.’ That seems to be the case here. Aylwyn Scally, the lead author of the gorilla genome report, was quoted saying, “The gorilla genome is important because it sheds light on the time when our ancestors diverged from our closest evolutionary cousins around six to 10 million years ago.” NPR titled its story similarly: “Gorilla Genome Sheds Light On Human Evolution.” What evolutionary hypothesis did the gorilla genome mess up?

The standard evolutionary phylogeny of primates holds that humans and chimps are more closely related to one-another than to other great apes like gorillas. In practice, all that really means is that when we sequence human, chimp, and gorilla genes, human and chimp genes have a DNA sequence that is more similar to one-another’s genes than to the gorilla’s genes. But huge portions of the gorilla genome contradict that nice, neat tidy phylogeny. That’s because these gorilla genes are more similar to the human or chimp version than the human or chimp versions are to one-another. In fact, it seems that some 30% of the gorilla genome contradicts the standard primate phylogeny in this manner.

The Evolution News post then cites New Scientist and Nature’s comments on the study.

This isn’t the first time we’ve heard about a study like this – the last time was about the chimpanzee genome and the paper was published in Nature – the most prestigious peer-reviewed journal.

News

New study: Gorilla genome calls common ancestry thesis into question

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ECM sent me this must-read article from Evolution News.

Excerpt:

A whopping 30% of the gorilla genome — amounting to hundreds of millions of base pairs of gorilla DNA — contradicts the standard supposed evolutionary phylogeny of great apes and humans. That’s the big news revealed last week with the publication of the sequence of the full gorilla genome.

[…]The standard evolutionary phylogeny of primates holds that humans and chimps are more closely related to one-another than to other great apes like gorillas. In practice, all that really means is that when we sequence human, chimp, and gorilla genes, human and chimp genes have a DNA sequence that is more similar to one-another’s genes than to the gorilla’s genes. But huge portions of the gorilla genome contradict that nice, neat tidy phylogeny. That’s because these gorilla genes are more similar to the human or chimp version than the human or chimp versions are to one-another. In fact, it seems that some 30% of the gorilla genome contradicts the standard primate phylogeny in this manner.

[…]The bottom line is that the gorilla genome has confirmed that there is not a consistent story of common ancestry coming from the genomes of the great apes and humans. Hundreds of millions of base pairs in the gorilla genome conflict with the supposed phylogeny of great apes and humans. They might think their explanation salvages common ancestry, but clearly the gorilla genome data badly messes up the supposedly nice, neat, tidy arguments which they use to claim humans are related to the great-apes.

Read the whole thing to see how the Darwinists wiggle and squirm to avoid the implications of the data.

We have to form our beliefs about origins based on scientific evidence, not based on philosophical assumptions. It does not good at all to assume materialism and then determine in advance that some sort of physical process must be responsible for the diversity of life. We have to eschew philosophical assumptions and led the scientific experiments determine our conclusions. Experiments are good, naturalistic religious dogma is bad.

News

New study shows that human and chimpanzee DNA are very different

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And this new study is from Nature, the prestigious peer-reviewed journal. (H/T Evolution News via Neil Simpson’s latest round-up)

Excerpt:

A Nature paper from January, 2010 titled, “Chimpanzee and human Y chromosomes are remarkably divergent in structure and gene content,” found that Y chromosomes in humans and chimps “differ radically in sequence structure and gene content,” showing “extraordinary divergence” where “wholesale renovation is the paramount theme.” Of course, the paper attributes these dramatic genetic changes to “rapid evolution during the past 6 million years.”

One of the scientists behind the study was quoted in a Nature news article stating, “It looks like there’s been a dramatic renovation or reinvention of the Y chromosome in the chimpanzee and human lineages.” The news article states that “many of the stark changes between the chimp and human Y chromosomes are due to gene loss in the chimp and gene gain in the human” since “the chimp Y chromosome has only two-thirds as many distinct genes or gene families as the human Y chromosome and only 47% as many protein-coding elements as humans.” According to the news piece, “Even more striking than the gene loss is the rearrangement of large portions of the chromosome. More than 30% of the chimp Y chromosome lacks an alignable counterpart on the human Y chromosome, and vice versa, whereas this is true for less than 2% of the remainder of the genome.”

I’m sure this will make it into the public school textbooks and PBS/Discovery Channel documentaries right away. Right! Away!