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/speciation/ - Species and Races

Anything related to diverging or established species

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File: 1447358031962.png (2.66 MB, 1460x1929, 1460:1929, 1447312186179.png)

 No.28[Reply]

New coyote-wolf hybrid sees explosion in numbers http://www.independent.co.uk/news/science/coywolf-new-coyote-wolf-hybrid-sees-explosion-in-numbers-a6717151.html

>In one of the great success stories of interspecies animal breeding, the coyote-wolf hybrid ‘coywolf’ can now count its numbers in the millions. >amazing contemporary evolution story that’s happening right underneath our nose >Some dispute whether the coywolf is genetically different enough to be considered its own species but Jonathan Way from the National Park Service says that there’s enough morphological and genetic divergence that it should be placed in a class of its own.

species as understood by geneticists, phylogenists, and most active biologists that understand evolution and speciation (creationism is a belief held by some doctors who are a type of biologist) and accept it

population that is closely related genetically and interbreeds regularly

closely related varies by species and size of population

a slow reproducing species like humans may be the same species for centuries and millennia of complete separation

bacteria can speciate in a few months under the right selective pressures ie an abundant but radically different food source which would take many new genes to be efficient at and a hybrid that digests two wildly different foods would reproduce too slowly

while a species like rabbits or squirrels that loses most offspring before they breed twice may speciate relatively quickly when separated geographically by obstacle or distance into different climates

"clines" Cline is a word used for a successful and populous species that has a large range compared to its movement and the territory of individual groups

depending on time since original expansion and interbreeding this can lead to complete separation and eventual speciation… or it could mean a stable population with gene floPost too long. Click here to view the full text.

13 posts omitted. Click reply to view.

 No.49

55


 No.50

88


 No.51

66


 No.52

99


 No.53

55




File: 1458346638870.jpg (49.62 KB, 800x566, 400:283, 148920727618923.jpg)

 No.46[Reply]

An elite panel of scientists and bioethicists offered guarded approval Wednesday of a novel form of genetic engineering that could prevent congenital diseases but would result in babies with genetic material from three parents.

The committee, which was convened last year at the request of the Food and Drug Administration, concluded that it is ethically permissible to “go forward, but with caution” with mitochondrial replacement techniques (MRT), said the chairman, Jeffrey Kahn, a bioethicist at Johns Hopkins ­University.

But the advisory panel’s conclusions have slammed into a congressional ban: The omnibus fiscal 2016 budget bill passed by Congress late last year contained language prohibiting the government from using any funds to handle applications for experiments that genetically alter human embryos.

Thus the green light from the scientists and ethicists won't translate anytime soon into clinical applications that could potentially help families that want healthy babies, said Shoukhrat Mitalipov, a pioneer of the new technique at Oregon Health & Science University in Portland, Ore.

“It seems like the FDA is disabled in this case by Congress," Mitalipov said. “At this point we’re still not clear how to proceed."

The FDA released a statement Wednesday saying it will carefully review the report from the advisory committee, but added that the congressional ban prohibits the agency from reviewing applications "in which a human embryo is intentionally created or modified to include a heritable genetic modification. As such, human subject research utilizing genetic modification of embryos for the prevention of transmission of mitochondrial disease cannot be performed in the United States in FY 2016."

MRT should be used rarely, with extreme care and with abundant government oversight, and it initially should be applied only to male embryos, the advisory panel said.

The report comes at a time of dazzling advances in genetic engineering and a commensurate struggle to understand the ethics of “playing God,” a phrase uttered twice Wednesday by committee member R. Alta Charo, a professor of law and bioethics at the University of Wisconsin.

Two months ago, scientists fromPost too long. Click here to view the full text.



File: 1455144378851.png (388.51 KB, 3000x1625, 24:13, 1454223257430-2.png)

 No.39[Reply]

Many arguments quickly devolve into arguments with jews about what is white and what mixedbloods will do in the coming racewar.

Nationalism comes in two overlapping flavours.

One is genetic and this results in similar behaviors and desires and allows for common goals despite low communication. If you had a twin, they could probably read your mind better than a lifetime spouse.

The other is cultural and this requires strong values to be the foundation of the culture. It is often closely tied to a geographic region which is preferred by most people in the nation and thus defended as if it were part of the bodies of the people.

The reason these two can not be entirely separated and must overlap is simply because similar people will result in similar views most of the time. There are components to this; such as the fact that culture (predisposition to actions, behaviors, beliefs) is genetic, understanding of your people despite any language barriers requires you have similar desires and ways of dealing with prolems, and a united front is over time always more successful than a diverse front.

Now a white nationalist is not a different kind of nationalist or someone that thinks all white people are a nation. A finger is not a hand, a nation is a subgroup of race and it does not mean race.

A white nationalist in America is going to believe in cultural nationalism and an overarching American nation. Most white nationalists also believe that the European race requires voluntary federation between the nations. A white nationalist despises the multicultural EU which actually hates Europeans as can be seen by the response to the flood of migrants.

So you are neither hwhite (European by blood) nor do you care for many of the European values, what does nationalism mean to you? The answers to this will vary because there are so many different types of people in the world that are not European. Here we will do a brief overview of the races and of certain types of mixbloods. Remember that all mixbloods can be misidentified by different groups so you run different risks depending on where you are.

Post too long. Click here to view the full text.

 No.40

File: 1455144415463.jpg (843.72 KB, 1920x1080, 16:9, 1412368307405.jpg)

>>39

Mixbloods can be two or more types and even genetic sequencing can make it difficult to identify some if they have more than 2 ancestries. There are certain types more common and this trend holds true due to several factors.

If you are an Asian/European mixblood then you might even be able to merge back into either society depending on your phenotypes. Nationalism to you means that you could be treated as an alien in any group or you could be lauded for your achievements and you could deemphasize one of your ancestries. In certain places ranging from Russia down to Turkey and through to India you could be irrecognizable from some of the people that have lived there for centuries.

If you are an African/European mixblood then you are likely going to have some African traits not often found all at once in Europeans. Your best bet is either going to lead African people with your connections. Your other option is to live in America and merge into the left or right by being an intellectual and in current times leveraging the race tensions to your benefit.

If you are a mix of native american and European you either have legal right to the benefits of your tribe or you are just another American. Your appearance is likely easy to play off as European if you choose.

Now if you are so mixed you don't know what you are then you can either play it off by appearance or simply focus on your work and let others see you as they will see you. Don't let people pin you to any nationalism you don't want to be related to.

There are many more specific and less specific mixbloods and each has to rely as much as they can on their community, perhaps more so than people who don't mix.

A genetic nationalism does not exist because of ideology but because of inherent results of certain genetic groups. Denying these types of differences will lead one to many false narratives based on incoherent ideologies which can not be properly refuted or supported if the biological aspect is ignored. Be wary if you deny genetics.

A cultural nationalism does not exist because people choose to eat certain foods and wave cerPost too long. Click here to view the full text.




File: 1445197526197.jpg (53.55 KB, 700x454, 350:227, cancer.jpg)

 No.23[Reply]

We know for a fact that oxidative stress is linked to increased tumour growth.

[ https://archive.is/Gyis5 ]

Now researchers are saying not to take antioxidants!

Why? Well because cancer cells will benefit more than normal cells!

Uh… should we not eat or stop breathing because cancer cells might use oxygen and glucose better than most normal cells? Of course not.

Be wary of this type of advice that goes against all reason.

The study itself is interesting because many types of growth factors were studied for specfic effects. So have a read and make your own conclusions.

https://archive.is/DRwiZ

 No.36

interesting




File: 1440987211625.jpg (346.25 KB, 980x1315, 196:263, 1491247124912472463.jpg)

 No.14[Reply]

Are organisms able to adapt and thrive despite rapid climate changes?

Marine organisms living in acidified waters exhibit a tendency to nurture their offspring to a greater extent than those in more regular conditions.

Researchers at Plymouth University have found that polychaete worms located around volcanic vents in the Mediterranean grow and develop their eggs within the protection of the family unit - in contrast to closely-related species that release them into the water column to fend for themselves.

The scientists say the findings could provide an important insight into how organisms might adjust to increasing levels of carbon dioxide in the sea - and the ramifications that might have for future biodiversity.

> "One of the most interesting annelid worms here typically grows to around 3cm in length and is found on the seafloor. It was previously thought that their breeding is triggered by a full moon, when they swim up to the surface and release - or 'broadcast' - their eggs.

>But our studies at the CO2 vents off Ischia have found something very different: those species living near the volcanic vents, in waters rich in carbon dioxide, seem to have adapted to the harsher conditions by brooding their offspring."

The team found that 12 of the 13 species that had colonized the vent area exhibited brooding characteristics, most notably producing fewer and larger eggs that were usually retained within some form of protective sac. Ten of those species were in higher abundance around the vents than in the ambient areas surrounding them - some by a ratio as high as nine-to-one.

The observation that brooding worms dominated the CO2 vent areas, and existing evidence of physiological and genetic adaptation in vent-inhabiting species, prompted the researchers to take immature adult Platynereis dumerilii specimens and attempt to cross breed them in the laboratory. A male - taken from the ambient control area - and a female - from the vent zone - almost immediately began to breed. But instead of the typical broadcast pattern, the eggs produced were five times larger than the average and were laid in aPost too long. Click here to view the full text.

 No.16

>>14

nice


 No.27

love these finds


 No.35

>>27

same




File: 1445205471559.jpg (89.24 KB, 1244x756, 311:189, australian migrations big.jpg)

 No.24[Reply]

It is known that there had to be some migrations back into Africa due to the genetics recovered from northern africa prior to the islam.

Now there is even more evidence showing this departures and returns.

This so-called Mota genome is the first sequenced from African skeletal remains, which are less hospitable to DNA molecules due to the warm climate. “Africa is going to be a difficult place for having ancient genomes—especially high quality genomes,” Carles LaLueza-Fox, a paleogeneticist at the Institute of Evolutionary Biology in Barcelona, Spain, who was not involved with the study, told Nature.

An international team published the ancient genome last week (October 8) in Science.The researchers compared Mota’s DNA sequence with modern African genomes and ancient Eurasian DNA, finding evidence to suggest that the man’s genetic material most closely aligns with DNA from modern Ethiopian highlanders of the Ari tribe. Mota and modern Ari genomes bear marks of ancestors likely moved from the Near East into Europe about 9,000 years ago.

“By having these high coverage genomes, we can start seeing a lot of information about what happened,” study coauthor Ron Pinhasi from University College Dublin, Ireland, told New Scientist. “It is the right direction but we need more.”

https://archive.is/9Fwnd

https://archive.is/wB4Ct

 No.34

speciation




File: 1446423163708.jpg (184.76 KB, 800x667, 800:667, 1446220629123.jpg)

 No.26[Reply]

The concept that biodiversity feeds upon itself is an old idea, but it's difficult to prove because it requires biologists to simultaneously catch several species red-handed just as they are becoming new species. Now biologists have proof.

'"Our study addresses one of the central questions in biology: How do new forms of life originate?"'

Rhagoletis is in the act of evolving into two species. The change is driven by differently timed fruiting cycles between apple trees, which some Rhagoletis prefer, and the North American hawthorn, the native fruit where Rhagoletis have traditionally laid their eggs.

Analyses showed that all three wasp species were also in the process of diverging into two distinct species, both genetically and with respect to host-associated physiology and behavior.

http://www.sciencedaily.com/releases/2015/10/151029185553.htm

TL; DR: A species of fruit fly is in process of speciation (forming a new species) and 3 other parasitoid wasps were found to enter speciation process in response.

Anonymous 10/30/15 (F



File: 1444530384295.jpg (74.55 KB, 678x491, 678:491, 1489101210283873.jpg)

 No.21[Reply]

The year is 2060. The United States Senate is sponsored by ExxonMobilShellCorp and the executive throne is still occupied by CEO Trump, our 114-year-old dictator with the youthful vigor of a lion cub thanks to a full head transplant and GMO anti-aging serums. Times are dark in these United States circa 2060: Despite decades of warning, humanity has completely failed to curb carbon emissions, the White House is now ocean-front, and MTV still doesn’t play music videos. In a last-ditch effort to save the world from ourselves, we’ve resorted to something that was previously both illegal and impossible: human engineering.

At least, this is the world as imagined by S. Matthew Liao, a bioethicist who in 2012 published a paper on a “new kind of solution to climate change, what we call human engineering, which involves biomedical modifications of humans so that they can mitigate and/or adapt to climate change,” according to the abstract.

In other words, he’s talking about fucking with our bodies so we stop fucking with the planet.

http://grist.org/living/can-we-cope-with-climate-change-by-genetically-engineering-people/

While the majority—49%—were opposed to genetic engineering of babies, 41% remained in favor, with 10% undecided.

http://inhabitat.com/the-designer-baby-debate-should-we-allow-genetic-engineering-of-babies-in-the-us/

Scientists, philosophers and science fiction authors have been discussing designer babies since the 1930s. However, the issues they have been discussing have remained theoretical because of the difficulty in getting genes to do what they want. The new technology of genome editing, known as CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats), which makes possible precise modifications of the genetics of organisms, changes things dramatically. Genetic modification of humans now looks all too possible.

Post too long. Click here to view the full text.



File: 1435023082867.jpg (387.03 KB, 2055x1103, 2055:1103, 1DNA.jpg)

 No.1[Reply]

placeholder

 No.3

>>>/genes/3

>race = large group that can be identified by its genes that includes a number of nations, a thorough taxonomical analysis could identify

>

>subspecies and race as one and the same and there would be a "nation" below that and an "ethnicity" below it

>

>think that before 200 years ago large migrations to far away lands were few and since then they have still been relatively few permanent ones and almost all to the new world so ethnicity helps define regional differences in the same nation such as between different germans

>

>if you consider the research into how it is possible that you dont have 16 billion ancestors all alive at the same time in the year 100bc then you can acknowledge that 2nd and 3rd cousin marriages were not only common but also not detrimental genetically - the oft cited anti incest rhetoric are royal families of middle ages into industrialization europe but most of them married exclusively first cousins … or closer

>

>on the other hand if the average rate of marrying back into your own gene pool is about 3rd degree cousins meaning many are more distant than there is not only enough variety but also chances for genetic purging




File: 1437730619760.jpg (1.28 MB, 1182x721, 1182:721, 3121tyyrty111.jpg)

 No.5[Reply]

New Genes Are Expressed in the Early Developing Human Brain

>Previous analyses of the molecular evolution of the human brain did not find consistent evidence of rapid evolution in the protein-coding genes expressed in the adult human brain [8]–[9]. Faster evolution in the human lineage was not observed at the gene expression level either [2].

>However, we noticed that all these analyses were based on the adult brain, just one stage of brain development. It is thus understandable that they were inconclusive as to the understanding of the genetic basis for the evolution of how the brain develops.

>Our analyses revealed an unexpected pattern: the expression patterns and protein sequences of new genes appear to contribute to the early (fetal and infant) brain development of humans.

>This pattern supports the argument that genes formed by duplication and by de novo origination could escape pleiotropic constraints [42]. On the other hand, the enrichment of transcription factors in human young genes also suggests the important role of regulation in the development of the human brain [1],[4]–[6].

>Our results show that regulatory evolution can occur in both cis [5] and trans, in the protein sequence of transcription factors [32],[43], and in the creation of new transcription factors through gene duplication. From this aspect, fine-tuning of gene regulation by human-specific genes [44] might underlie many human-specific characteristics and behaviors.

>However, we also observed that young genes were associated with diverse functions, ranging from nuclear pore proteins to ribosomal proteins (Table 1).

>In fact, the striking correspondence of the origination times of the neocortex and PFC with the ages of new genes suggests the functional association of these young genes with the development of these expanding brain structures. Specifically, new genes began to be recruited into neocortex or PFC after their morphological origination (Figure 5B, 5C).

>The recruitment of young genes into the early developmental stages of neocortex, regardless of the various processes which created these genPost too long. Click here to view the full text.



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