Monday, October 20, 2014

He also said that Cao Cao family has many groundbreaking DNA research, is a world first in terms of


Sina home today for the elderly, "sex" Younger original title: "Cao Cao family DNA study whether fly" and then turmoil - the need to restore the historical appearance identified "public-word"
He also said that Cao Cao family has many groundbreaking DNA research, is a world first in terms of scientific research biofilm from the level of its greatest significance is that you can start looking for our ancestors that "Roots" from the modern. Cao family DNA research is actually the case, to prove this route is feasible, their future research will lead to the right way up, the big goal is to study the formation history of the Chinese nation. For example, we often say that the cultural ancestor of the Chinese nation is Huangdi and Yandi, biofilm Yao, Shun, Confucius organize cultural classics, but these and 唐朝皇 room or barbarian Han Lee in the end is in doubt, these are placed in China Study the history of the formation of the national perspective.
Researcher at the Institute of Archaeology of Henan Province, Pan Weibin gaoling archaeological biofilm team captain to the newspaper wrote a long article, Fudan University to express their reservations about the results of DNA testing reasons. "I think that archeology has always been a relatively 'conservative' discipline and if indeed there is a good scientific method, we repeated the test, under the premise of certainty will be accepted at this point, we would rather let lag point. reason for this is given to experimental archeology biofilm that door is different from the natural science disciplines, but also failed to start all over again, because of the uniqueness and precious heritage, coupled with unrecoverable biofilm after it is damaged, does not allow the slightest mistake, this is our archaeological ancestors a respected person and a responsible attitude towards the country's cultural heritage. specific biofilm to the remains of Cao Cao, we are cautious hope that people can understand. "
Fudan University research group in the study, and to act as a "sparrow" some of the descendants of Cao said, "a write two 'CAO' word," but there are genealogy as a basis. However, the Chinese family, surname complicated. biofilm Historical Geography Research Center of Fudan University Professor Ge Jianxiong biofilm told reporters at the raw data is extremely limited and tends to focus on a small number of minority biofilm family circumstances, to determine the specific migration, intermarriage, adoptive and so it is quite difficult; most Genealogy ancestor or ancestors began to move unreliable. Genealogy of use must be contrasted with other reliable historical data, because many of the early genealogy content mostly the descendants make up, there are loopholes in the system, office, biofilm place names, names and so on.
Pan Weibin said Cao later revised his genealogy at the time, because his family out of Cao Cao in this famous character, his son Cao Pi also established dawei dynasty, thus bringing the Cao family as their representative character to cling to, but also very possible. He also believed that DNA to future biofilm generations to Cao Cao's DNA is thrust reversers do not fly. Using DNA extracted from them information and Zudi Cao Cao Tang Ding legacy of DNA to compare, find out the similarities, only that they have a certain relationship with Cao Teng this one, but not necessarily Cao Cao will have any direct contact with, but not anti-DNA features introduced Cao Cao. Whether Cao Song from outside adoptive family or adoptive family from the inside, if not directly collect specimens for testing from the Cao Song, Cao Cao, Cao Pi, beware of this offshoot of the remains, biofilm the conclusions are without any significance. In addition, we must strictly distinguish between "Cao Cao family" and "Cao family", the two are different concepts, can not be confused. Therefore, the test conducted prior to any of Cao Cao remains biofilm thrust reversers, the conclusions are unscientific.
Modern DNA extraction and extraction of ancient DNA are very different. Modern DNA through the hair, saliva extraction, the success rate of almost 100%, but the extraction of ancient DNA is much more difficult, biofilm and often get results. Ten years ago, archaeologists worked with molecular biologists to study the relationship biofilm between American Indians biofilm and the Asian continent race. The results demonstrated that the success rate of extraction of ancient DNA is much lower than modern DNA. Germany, Japan and other countries, a high level study of ancient DNA, in the case of preserved human bones, for 2000 years ago ancient human DNA extraction success rate is also less than 50%. Tang Jigen, said after the clustering research, even if one group is really Cao family, actually it is difficult to "verify" West High Point II tomb of Cao Cao whether male skull. biofilm West High Point II Men tomb tomb skull (ie, archaeologists identified Cao skull) only a few blocks of the skull fragments and a piece of the mandible (although the rest of the limb bones of many, there is no sorting off), to extract the DNA possibility is also minimal. More seriously, biofilm the tomb of the skull had been subjected to grave robbers pollution, and changed hands several times in the discovery, researchers, even to extract DNA fragment, it is difficult to ensure that the tomb owner. So-called "comparative study" biofilm Actual impossible to achieve. Accused of archeology biofilm reluctant to come to identify the skull, such as non-hype, is to study the conditions did not make a serious estimate.
Tang Jigen also said, "In fact, I have no objection to do further research on the skull if Fudan University research group justify their own DNA is extracted from a group of Cao Cao family, and technically can guarantee extracted without compromising situations West High Point Village II tomb tomb skull DNA, and to ensure that the extracted DNA is not from sources skull itself, then give it a try, but not to a group of DNA surnamed Cao, ran to examine the characteristics of modern Western High Point II tomb whether the owner of the tomb of Cao Cao, but in turn, to the west of High Point II tomb tomb of DNA research group feature to verify that genomic DNA was extracted Cao family. "
Ge Jianxiong said that the detection method using DNA as genetics has matured and reliable. However, this method can only determine the similarities and differences between different genes, can not determine a specific sample belongs to which person in the case of the original sample missing. The end result biofilm of this determination is in fact proved that these surnamed Cao, ran Bozhou population is found in the tomb owner's descendants teeth, they have an ancestor who lived in the same about 1800 years ago. But the owner is also inseparable from the teeth to determine the appropriate historical data, such as historical or in-kind can not prove this man and Cao Cao blood, it can not be linked to Cao Cao. Even Anyang tomb skull extracted genes and Bozhou tomb identical, to determine if this person is also inseparable from Cao Cao also other artifacts unearthed in the tomb at the same time.
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