fuchik2 (fuchik2) wrote,
fuchik2
fuchik2

Денисовец - детище палеогенетики

Алтай подарил миру доисторическую "женщину Икс"

Пол Ринкон
Би-би-си

24 марта 2010

До сих пор неизвестный тип древнего человека идентифицирован учеными при помощи анализа ДНК, извлеченной из окаменелой фаланги пальца, обнаруженного в Денисовой пещере на Алтае.

http://www.bbc.com/russian/science/2010/03/100324_new_ancient_human

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НАУКА И ЖИЗНЬ/Архив журнала «НАУКА И ЖИЗНЬ»/

Обложка журнала «Наука и жизнь» №7 за 2010 г.№7, 2010

Древний человек из Денисовой пещеры, кто он?

Юлия СМИРНОВА.

https://www.nkj.ru/archive/articles/18320/

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Ученые: Человек алтайский скрещивался с Homo sapiens

Последнее обновление: четверг, 23 декабря 2010 г., 01:40 GMT 04:40 MCK

http://www.bbc.co.uk/russian/science/2010/12/101222_new_human_species_siberia.shtml

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https://www.culture.ru/movies/1358/novaya-gipoteza-proiskhozhdeniya-cheloveka

Телеканал "Культура"
26 ноября 2011 года
Программа "Очевидное-невероятное"

Новая гипотеза происхождения человека

Ведущий Сергей Петрович Капица

- Добрый день! В нашей сегодняшней передаче мы вновь возвращаемся к проблеме человека, происхождения человечества. Его история, увиденная в большом масштабе времени и пространства.

Мы вновь пригласили Анатолия Пантелеевича Деревянко, академика, директора Института Археологии и Этнографии Сибирского отделения Академии наук.

..............

07:13

Дело в том, что где-то до 80-х годов прошлого века была такая линейная эволюция: то есть Хомо Эректус, Неандерталец и человек современного типа, скажем, кроманьонец. После вот 80-х годов, когда в 1987 году была публикация о результатах секвенирования митохондриальной ДНК, представления начали быстро меняться у ученых. Начали...

- Да. Нашли новый ключ к пониманию.

- Совершенно верно. ...создаваться палеогенетические лаборатории и буквально очень быстро вычеркнули и Эректуса из родословной человека и Неандертальца вычеркнули из родословной. И в настоящее время вот в результатах изучения секвенирования генома большинство ученых считает, что человек современного анатомического типа произошел в Африке. 60-80 тысяч лет начался выход его в Евразию и заселение планеты.

И две точки зрения.

Одна, что происходило замещение, вот коренное, автохтонное население как бы уничтожалось или выдавливалось в климатические природные условия очень не приспособленные для жизни человека и там они исчезали.

А другая точка зрения, что происходила и ассимиляция некая. То есть возможно были браки и диффузия культур.

- Вместе с диффузией генома.

- Генома, да.

............

12:59

Но. Я возвращаюсь вот к Денисовцам. Самое удивительное что от Денисовцев 4-6% в геноме меланезийцев оказалось. Не как вот, скажем, современных европейцев, а именно меланезийцев.

- Это откуда? Из Индонезии?

- Да. Это из Полинезии. Самое удивительное, что на этот вопрос ответить очень трудно. Но я думаю, что... и вот мы провели такое совещание в Институте цитологии и генетики Сибирского отделения, совместно с этим институтом создана два года назад лаборатория по палеогенетике. И наша задача сейчас выделить, ну, как минимум митохондриальное ДНК секвенировать, но еще более важное, конечно, ядерное у неолитического населения, у населения бронзового века и у современных популяций. Потому что у них обязательно должен быть остаться общий след, потому что Денисовцы являются вот истоками.

.............

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В генах денисовского человека обнаружены признаки ещё одного неизвестного вида

20.12.2013   16:18

Автор: Евгений Парамонов

http://www.vesti.ru/doc.html?id=1169557&cid=2161

---------------------------

Неандертальцы и денисовцы вступали в интимную связь. Умершая 50 тыс. лет назад девушка доказала это
24 августа 2018
https://www.bbc.com/russian/features-45298931

Mum’s a Neanderthal, Dad’s a Denisovan: First discovery of an ancient-human hybrid Genetic analysis uncovers a direct descendant of two different groups of early humans.
22 AUGUST 2018 CORRECTION 23 AUGUST 2018
https://www.nature.com/articles/d41586-018-06004-0

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Секс древних людей с приматами и почему Солнце никогда не станет сверхновой
12 января 2019
https://www.bbc.com/russian/features-46838847

--------------------

Генетики выяснили, что связывает жителей Пскова, Новгорода и Якутии
17 апреля, 14:00
https://ria.ru/20190417/1552774350.html

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'Big brain' DNA found in humans: Single gene that made us more intelligent than chimps is identified for the first time
The ARHGAP11B gene increases the number of neurons in neocortex
This is a brain region that is key to reasoning, language and perception
Scientists believe the gene arose in humans after our ancient ancestors and those of chimps split more than five million years ago
By ELLIE ZOLFAGHARIFARD FOR DAILYMAIL.COM
PUBLISHED: 23:38 GMT, 27 February 2015 | UPDATED: 11:25 GMT, 28 February 2015
http://www.dailymail.co.uk/sciencetech/article-2972875/Big-brain-DNA-humans-Single-gene-intelligent-chimps-identified-time.html

Were ancient Denisovans the first to discover Australia? Scientist believes traces of their DNA found in Aboriginal people suggest they beat homo-sapiens to the continent
Denisovans lived in southern Russia from 125,000 years ago before extinction
Around four per cent of Denisovan DNA can be found in the Aboriginal people
Richard Roberts believes this proves Denisovans arrived first on the continent
The only location they have been found is 5,200 miles (8,368 km) from Australia
By WILL STEWART IN MOSCOW and TIM COLLINS FOR MAILONLINE
PUBLISHED: 11:19 BST, 15 September 2017 | UPDATED: 12:27 BST, 15 September 2017
http://www.dailymail.co.uk/sciencetech/article-4883302/DNA-rewrite-story-Australia-s-discovery.html

NEWS 01 MAY 2019
Biggest Denisovan fossil yet spills ancient human’s secrets
Jawbone from China reveals that the ancient human was widespread across the world — and lived at surprising altitude.
A Denisovan jawbone was discovered on Tibetan Plateau at an altitude of more than 3,000 metres.Credit: Dongju Zhang, Lanzhou University
Scientists have uncovered the most complete remains yet from the mysterious ancient-hominin group known as the Denisovans. The jawbone, discovered high on the Tibetan Plateau and dated to more than 160,000 years ago, is also the first Denisovan specimen found outside the Siberian cave in which the hominin was uncovered a decade ago — confirming suspicions that Denisovans were more widespread than the fossil record currently suggests.
The research marks the first time an ancient human has been identified solely through the analysis of proteins. With no usable DNA, scientists examined proteins in the specimen’s teeth, raising hopes that more fossils could be identified even when DNA is not preserved.
Siberia’s ancient ghost clan starts to surrender its secrets
“This is fantastic work,” says Katerina Douka, an archaeologist at the Max Planck Institute for the Science of Human History in Jena, Germany, who runs a separate project aiming to uncover Denisovan fossils in Asia. “It tells us that we are looking at the right area.”
https://www.nature.com/articles/d41586-019-01395-0

We may have bred with Denisovans much more recently than we thought
HUMANS 1 April 2019 , updated 2 April 2019
Denisovans may have lived alongside us in Papua New Guinea
People in Papua New Guinea have some Denisovan DNA
Our species may have been interbreeding with Denisovans as recently as 15,000 years ago, according to a detailed analysis of the DNA of people living in Indonesia and Papua New Guinea.
https://www.newscientist.com/article/2198349-we-may-have-bred-with-denisovans-much-more-recently-than-we-thought/

Our mysterious cousins—the Denisovans—may have mated with modern humans as recently as 15,000 years ago
By Ann GibbonsMar. 29, 2019 , 10:30 AM
CLEVELAND, OHIO—The elusive Denisovans, the extinct cousins of Neanderthals, are known from only the scraps of bone they left in Siberia’s Denisova Cave in Russia and the genetic legacy they bequeathed to living people across Asia. A new study of that legacy in people from New Guinea now suggests that, far from being a single group, these mysterious humans were so diverse that their populations were as distantly related to each other as they were to Neanderthals.
https://www.sciencemag.org/news/2019/03/our-mysterious-cousins-denisovans-may-have-mated-modern-humans-recently-15000-years-ago

NEWS PALAEONTOLOGY 12 APRIL 2019
DNA remnants of three separate Denisovan populations found in human genomes
The archaic hominins weren’t homogenous, and archaic humans weren’t shy, research suggests. Dyani Lewis reports.
Scientists sifting through the genomes of people scattered across the islands of south-east Asia have found echoes of ancient pairings with not just one, but three separate populations of the archaic hominins known as Denisovans.
A new study, published in the journal Cell, also concludes that one of those populations could have survived and interbred with the ancestors of modern-day Papuans as recently as 15,000 to 30,000 years ago.
https://cosmosmagazine.com/palaeontology/dna-remnants-of-three-separate-denisovan-populations-found-in-human-genomes

Denisovans: Primitive humans lived at high altitudes
By Paul Rincon
Science editor, BBC News website
1 May 2019
The Xiahe mandible was found in 1980 in Baishiya Karst Cave
Scientists have found evidence that an ancient species of human called Denisovans lived at high altitudes in Tibet.
The ability to survive in such extreme environments had previously been associated only with our species - Homo sapiens.
The ancient ancestor seems to have passed on a gene that helps modern people cope at high elevations.
Details of the study are published in the journal Nature.
https://www.bbc.com/news/science-environment-48107498

Fresh clues to the life and times of the Denisovans, a little-known ancient group of humans
January 30, 2019 7.08pm GMT
We know that some modern human genomes contain fragments of DNA from an ancient population of humans called Denisovans, the remains of which have been found at only one site, a cave in what is now Siberia.
Two papers published in Nature today give us a firmer understanding of when these little-known archaic humans (hominins) lived.
http://theconversation.com/fresh-clues-to-the-life-and-times-of-the-denisovans-a-little-known-ancient-group-of-humans-110504

Found: First Tibetan Evidence of Neanderthal Cousins, the Denisovans
By Mindy Weisberger, Senior Writer | May 3, 2019 03:44pm ET
A virtual reconstruction of the Xiahe mandible after digital removal of the adhering carbonate crust. Mirrored parts are in gray.
For the first time, scientists have found fossils from an extinct ancient human lineage known as the Denisovans outside of Siberia.
https://www.livescience.com/65402-denisovans-tibetan-plateau.html

This Newfound Extinct Human Lineage Also Mated with Modern Humans
By Charles Q. Choi, Live Science Contributor | April 11, 2019 11:51am ET
The mysterious Denisovans are known only from fossils unearthed in the Denisova Cave, shown here, in the Altai Mountains in Siberia.
A newfound extinct human lineage that lived in New Guinea interbred with modern humans, a new study finds.
This lineage's genetic differences from other humans made it as distinct a group as our closest extinct relatives, the Neanderthals and Denisovans, scientists added.
https://www.livescience.com/65213-new-human-lineage-interbred-modern-humans.html

'Spectacular' jawbone discovery sheds light on ancient Denisovans
The Denisovan mandible likely represents the earliest hominin fossil on the Tibetan Plateau, researchers say. Photograph: Jean-Jacques Hublin/AFP/Getty Images
A human jawbone found in a cave on the Tibetan plateau has revealed new details about the appearance and lifestyle of a mysterious ancient species called Denisovans.
https://www.theguardian.com/science/2019/may/01/denisovan-jawbone-discovered-in-tibetan-cave

What does it mean to have Neanderthal or Denisovan DNA?
Several direct-to-consumer genetic testing companies report how much DNA a person has inherited from prehistoric humans, such as Neanderthals and Denisovans. This information is generally reported as a percentage that suggests how much DNA an individual has inherited from these ancestors. The percentage of Neanderthal DNA in modern humans is zero or close to zero in people from African populations, and is about 1 to 2 percent in people of European or Asian background. The percentage of Denisovan DNA is highest in the Melanesian population (4 to 6 percent), lower in other Southeast Asian and Pacific Islander populations, and very low or undetectable elsewhere in the world.
https://ghr.nlm.nih.gov/primer/dtcgenetictesting/neanderthaldna

The first known fossil of a Denisovan skull has been found in a Siberian cave
DNA evidence hints that the hominids interbred with humans as recently as 15,000 years ago
BY BRUCE BOWER 11:01AM, MARCH 29, 2019
https://www.sciencenews.org/article/first-fossil-denisovan-skull-cave-siberia

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