www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Global EditionASIA 中文雙語Fran?ais
China

Researchers trace Harbin skull lineage

By Li Menghan | China Daily | Updated: 2025-06-19 00:00
Share
Share - WeChat

Recent studies have traced the ancestry of a nearly complete skull, discovered near Harbin, Heilongjiang province, to the Denisovan lineage.

As one of the closest known relatives to modern humans alongside Neanderthals, the Denisovans have long intrigued paleoanthropologists.

The Harbin skull, identified as a new species named Homo longi, dates back at least 146,000 years. Until now, Denisovan fossils were scarce and fragmentary, limited to teeth, bone fragments and incomplete lower jawbones from sites such as the Denisova Cave in Siberia, the Baishiya Karst Cave on the Qinghai-Tibet Plateau and the waters off Penghu in Taiwan. This limited evidence complicated efforts to reconstruct their morphology and evolutionary history.

The research team conducted independent palaeoproteomic analyses and ancient DNA experiments on the skull and its dental calculus, providing proteomic and genetic evidence linking the Harbin skull to the Denisovan population. The findings were published on Wednesday in the journals Science and Cell.

The team, led by Fu Qiaomei of the Institute of Vertebrate Paleontology and Paleoanthropology under the Chinese Academy of Sciences, and Ji Qiang of Hebei GEO University, developed a method to automatically identify ancient human populations based on proteins. Their analysis confirmed the Harbin skull's classification within the Homo genus.

Notably, the researchers identified three protein variants unique to Denisovans, establishing a clear phylogenetic link between the Harbin individual and Denisova 3, a phalanx fossil of a juvenile girl discovered in Siberia.

Retrieving ancient DNA from the Harbin skull proved difficult, as neither the teeth nor the temporal bones retained any genetic material. However, the team broke new ground by extracting DNA from dental calculus — a dense, mineralized substance on the teeth that provides a microenvironment conducive to preservation.

By optimizing extraction techniques and constructing multiple DNA libraries, researchers confirmed that the Harbin individual falls within the genetic mutation range of Denisovans and belongs to an early branch of their DNA lineage.

The findings suggest that Denisovans were widely distributed from Siberia to Northeast China during the late Middle Pleistocene era, between 127,000 and 217,000 years ago. The study also highlights the untapped potential of dental calculus in preserving ancient human DNA, offering a new approach to genetic research on early hominins.

The studies resolve long-standing classification debates over the Harbin skull and provide the most complete look, to date, at Denisovan skull morphology.

 

Today's Top News

Editor's picks

Most Viewed

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 午夜视频网站 | 九九免费在线视频 | 成人毛片免费观看视频大全 | 97视频在线免费播放 | 精品72久久久久久久中文字幕 | 国产性videostv另类极品 | 欧美精品在线免费观看 | 久艹精品| 123成人网 | 综合 欧美 国产 视频二区 | 久久五月女厕所一区二区 | 精品综合久久久久久88小说 | 中国一级毛片欧美一级毛片 | 亚洲精品第一第二区 | 手机国产日韩高清免费看片 | 免费观看成人毛片 | 日韩一中文字幕 | 日韩欧美一二区 | a一级特黄日本大片 s色 | 丝袜精品 欧美 亚洲 自拍 | 欧美日韩高清不卡一区二区三区 | 欧美日韩国产在线人成dvd | 亚洲第一视频网站 | 中文字幕亚洲综合久久 | 久久精品免视国产 | 嫩草一区二区三区四区乱码 | 午夜一级做a爰片久久毛片 午夜伊人网 | 美女黄色免费在线观看 | 91视频99| 久久香蕉国产观看猫咪3atv | 日本www视频| 精品性久久 | 亚洲国产成人久久一区久久 | 亚洲精品久久久久久久福利 | 国产成人精品一区二区视频 | 欧美一级美片在线观看免费 | 国产精品手机在线播放 | 久久久久国产成人精品亚洲午夜 | 欧美亚洲国产精品久久久 | 中国胖女人一级毛片aaaaa | 男女福利社 |