Capital Wired

Keeps You Updated

Tuesday, April 13, 2021
Log in
  • Headlines
  • Business
  • Health
  • Tech & Science
  • Sports
  • World
  • US
  • Latest News
    • How To Make Your Own Home-Brewed Morphine
    • Using Mouthwash Too Often Puts You at Risk of Obesity and Diabetes
    • Walmart to Solve its Supply Chain Issues and Further Cut Down on Costs
    • The World’s Most Expensive Christmas Decorations
    • Netflix Hopes to Balance Data Limit With Great Video Quality
    • Joji Morishita says Japan Will Resume Whaling
    • The Most Beloved Plastic Surgeries Among Americans
    • Skype for Web Allows Non-Users to Take Part In Its Online Chats

Pages

  • About Capital Wired
  • Contact Us
  • Privacy Policy GDPR
  • Reprint & Licensing
  • Staff
  • Terms of Use

Recent Posts

  • Here’s Why Your Brain Keeps Worrying about Everything June 29, 2018
  • Don’t Throw That Sunscreen after Summer Is Up June 29, 2018
  • Analysts: Currency War between U.S. and China Might Be Looming June 28, 2018
  • Starbucks Rival The Coffee Bean & Tea Leaf Opening 100 Shops June 27, 2018
  • Study Finds We Are Alone in the Universe June 26, 2018
  • Restaurant Owner Not Sorry for Booting Sarah Sanders June 26, 2018
  • Beware of the Hidden Salt in Your Food! June 25, 2018

Scientists Sequenced A 45000-Year-Old Man’s Genome

October 23, 2014 By Rebecca McGhee Leave a Comment

45000-year-old-man's-genome-sequenced

The DNA of a 45000 year old bone of a Siberian man has been recently examined by the researchers to find out when human and Neanderthals first interbred. On record, this is an oldest genome sequence of Homo sapiens exposing a mysterious population that may once have spanned northern Asia. The study is published in the Nature journal.

The oldest human genome also revealed that the closest extinct relatives of the modern humans were the Neanderthals who lived in Europe and Asia and vanished around 40,000 years ago. The Neanderthals interbred with ancestors of modern humans when modern humans began spreading out of Africa and today 1.5 to 2.1 percent of the DNA of anyone living outside Africa is Neanderthal in origin, study reveals.

“It remains vague when interbreeding between Neanderthals and modern humans happened. But it probably ranged between 37000 to 86000 years ago,” researchers stated.

The researchers examined the bone (human left femur), discovered by Nikolai Peristov, an artist and mammoth ivory collector on the left bank of the river Irtysh near the settlement of Ust’-Ishim in western Siberia in 2008. The age of the man’s bone to be is about 45,000 years old, researchers stated.

Janet Kelso, co-author of the study and a computational biologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, told Live Science, “This is the earliest directly dated modern human outside of Africa and the Middle East, and the oldest modern human [genome] to have been sequenced.”

Formerly, the researchers had proposed modern humans firstly populated Asia by traveling towards southern, coastal route that gave rise to the present-day people of Oceania, while a later, more northern migration, gave rise to mainland Asians. Kelson stated, “the researchers’ evidence for the modern human presence in Siberia 45,000 years ago specifies that the early modern humans were not just migrated to Eurasia through a southern route as previously suggested.”

The researchers further examined the carbon and nitrogen isotopes present in the man’s bone proposes that he ate C3 plants, which rule cooler, wetter, cloudier regions such as garlic, eggplants, pears, beans and wheat as well as animals that also dined on C3 plants. Though, the study analysis reveals that he might have eaten aquatic foods like fresh water fish.

The DNA analysis of mans’s bone revealed that the he was closely related to present-day Asians and to early Europeans. “From this we conclude that the population to which the Ust’-Ishim individual belonged diverged from the ancestors of present-day Europeans and Asians before, or at around the same time as, these groups diverged from one another,” Kelso said.

The researchers believed that 45,000 years old man carried a similar level of Neanderthal ancestry as present-day Eurasians and the Neanderthal genes moved into the ancestors of this man 7,000 to 13,000 years before he lived.

The results of the study propose that modern humans and Neanderthals interbred around 50,000 to 60,000 years ago, “which is close to the time of the major expansion of modern humans out of Africa and the Middle East,” Kelso added.

Filed Under: Tech & Science Tagged With: 13000, 45000 years old man, 50000, 60000, 7000, Africa, Asians, bone, C3 plants, DNA, Eurasia, Europeans, Genes, genome, Germany, Homo sapiens, Janet Kelso, Max Planck, middle east, Nikolai Peristov, Siberia

DNA Reveals, Neanderthals & Modern Humans First Mated 50000 years ago

October 22, 2014 By Germaine Hicks 3 Comments

Neanderthals-modern-human-mated-50000-years-ago

Recently, the researchers examined the DNA of a 45000 year old bone of a Siberian man in order to find out when human and Neanderthals first mated.

Though, the modern humans are the only humans surviving human ancestry, others once lived on Earth. The closest extinct relatives of the modern humans were the Neanderthals who lived in Europe and Asia and vanished around 40,000 years ago. According to the recent study, the Neanderthals mated with ancestors of modern humans when modern humans began spreading out of Africa and today 1.5% to 2.1% of the DNA of anyone living outside Africa is Neanderthal in origin.

The researchers said, “it remains vague when interbreeding between Neanderthals and modern humans happened. But it probably ranged between 37000 to 86000 years ago.”

In order to resolve this mystery, the researchers examined the shaft of a thighbone, which is discovered by Nikolai Peristov, an artist and mammoth ivory collector on the left bank of the river Irtysh near the settlement of Ust’-Ishim in western Siberia in 2008. The age of the man’s bone to be is about 45,000 years old, researchers stated.

Janet Kelso, co-author of the study and a computational biologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, told Live Science, “This is the earliest directly dated modern human outside of Africa and the Middle East, and the oldest modern human genome to have been sequenced.”

In the past, the researchers had proposed modern humans firstly populated Asia by traveling towards southern, coastal route that gave rise to the present-day people of Oceania, while a later, more northern migration, gave rise to mainland Asians. Kelson stated, “the researchers’ evidence for the modern human presence in Siberia 45,000 years ago specifies that the early modern humans were not just migrated to Eurasia through a southern route as previously suggested.”

The researchers further examined the carbon and nitrogen isotopes present in the man’s bone proposes that he ate C3 plants, which rule cooler, wetter, cloudier regions such as garlic, eggplants, pears, beans and wheat as well as animals that also dined on C3 plants. Though, the study analysis reveals that he might have eaten aquatic foods like fresh water fish.

The bone’s genetic analysis revealed that the man was closely related to present-day Asians and to early Europeans. “From this we conclude that the population to which the Ust’-Ishim individual belonged diverged from the ancestors of present-day Europeans and Asians before, or at around the same time as, these groups diverged from one another,” Kelso said.

The Siberian man carried a similar level of Neanderthal ancestry as present-day Eurasians and the Neanderthal genes moved into the ancestors of this man 7,000 to 13,000 years before he lived, researchers revealed.

The results of the study propose that modern humans and Neanderthals mated around 50,000 to 60,000 years ago, “which is close to the time of the major expansion of modern humans out of Africa and the Middle East,” Kelso said.

The study is published in the Nature journal.

Filed Under: Tech & Science Tagged With: 13000, 2008, 50000, 60000, 7000, Africa, Asia, beans, C3 plants, DNA, eggplants, Eurasia, garlic, genome, Janet Kelso, middle east, Modern humans, Neanderthals, Nikolai Peristov, pears, Siberia

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Recent Articles

dc logo on black galaxy background

Ava DuVernay to Direct DC’s New Gods Adaptation

March 16, 2018 By Rebecca McGhee Leave a Comment

leonardo davinci's signature in black

Is DaVinci’s Record Breaking Painting Authentic?

November 20, 2017 By Rebecca McGhee Leave a Comment

stephen hawking

Stephen Hawking Makes Gloomy Prediction For Earth In A 100 Years

May 7, 2017 By Deborah Nielsen Leave a Comment

"Dwayne Johnson not dead"

Dwayne Johnson Died this Week or Not

January 19, 2016 By Jason Leathers 3 Comments

There Are At Least Three More Seasons of Game of Thrones To Go

July 31, 2015 By Rebecca McGhee Leave a Comment

Homelessness Soars in L.A., Officials Pledge to House Everybody by 2016

May 12, 2015 By Brian Galloway Leave a Comment

FBI Releases National Report on Slain Police Officers, Figures are Alarming

May 12, 2015 By Rebecca McGhee Leave a Comment

New York Nuclear Plant Partially Shut Down due to Hudson Oil Slick

May 11, 2015 By Jason Leathers 2 Comments

Obama Draws Heat from Democrats over Asia Trade Deal

May 9, 2015 By Rebecca McGhee Leave a Comment

Florida Governor Changes Stance on Obamacare Once More, Budget on Hold

May 9, 2015 By Brian Galloway Leave a Comment

Secret Service to add an Extra Layer of Spikes to White House Fence

May 8, 2015 By Chen Lai Leave a Comment

Police Arrested Suspect in death of Student who tried to Sell Car on Craigslist

May 8, 2015 By Deborah Nielsen 1 Comment

AccuWeather.com: 2015 Atlantic Tropical Storm Season is Officially Open

May 7, 2015 By Deborah Nielsen Leave a Comment

Illinois Student Found Dead after Trying to Sell his Car on Craigslist

May 7, 2015 By Deborah Nielsen 2 Comments

Categories

  • Business
  • Headlines
  • Health
  • Sports
  • Tech & Science
  • US
  • World

Copyright © 2021 capitalwired.com

About · Privacy Policy · Terms of Use · Contact