The gene locus of ABO blood group system is on chromosome 9. Human ABO blood group is controlled by three genes: A, B and O, but there are only two ABO system genes on chromosome 9 in each cell, which are a pair of alleles among AO, AA, BO, BB, AB and OO, in which A and B genes are dominant genes and O gene is recessive.
Mongolian descendants
According to statistics, there are less than 200,000 people surnamed Du in China, less than 1 10,000 in Anhui, and there are also people surnamed Du in Lixin County of our city, with about 3,000 people. Li Xin's surname is "Du", and he is a kindred. They said that their ancestors used to be Mongols, and they were descendants of the Caspian Sea, the son of Kublai Khan, the emperor of the Yuan Dynasty. From the appearance of many people with surnames now, we can still see the characteristics of Mongolians.
There are 3,000 people in Lixin, whose surname is Du.
Chengjiaji Town Village, Zhenxi Village and Village in Kantuan Town, Lixin County, these four adjacent villages are the settlements of Du surname, and most of Lixin's surnames live here. Among them, there are nearly 1500 people in Guwei village.
Du Qingkun, the branch secretary of Guxu Village, told the reporter that Guxu Village was the place where Du surnamed in Lixin County originally lived, because there was once an ancestral grave covering an area of two acres in Duzhuang after the village.
"There are at least seven graves in that ancestral grave, which are fan-shaped, and the largest ancestral grave is at the front." Du Qingkun said that people from nearby villages used to come here every year to worship their ancestors. There is also a Dujia Temple in the village. At that time, every year on February 2, everyone surnamed Du would make a wish in the temple, which was very lively.
Du Qingkun said that the surname "Du" is a relatively sparsely populated surname in China, with a population of less than 200,000, while that in Anhui is less than 1 10,000, mainly distributed in Tongcheng, Mengcheng, Lixin and Lujiang counties. Due to the small surname population, Du Xingren established the Huaxia Du Xing Friendship Association, which linked Du Xingren from all over the country and even overseas.
Deputy director of Lixin county finance bureau, and will attend the fraternity in the future. "The fraternity was held four times, the first time in Yantai, Shandong, and the second time in Erdos, Inner Mongolia. The one I went to was held in Tongcheng, Anhui last year. "
Most surnames in Guwei Village are burly, square-faced, with heavy eyebrows and eyes, which are very similar to the Mongols.
Li Xin, surnamed Du, is a descendant of Kublai Khan.
Du Qingkun said that all the surnames of Lixin belong to one family. They have been handed down from generation to generation, and through social gatherings and other means of investigation, they think that they all moved from Yantai, Shandong Province.
None of them told the reporter the story of their ancestors.
He said that there are two families in China, one is the Han nationality and the other is the Mongolian nationality. In the early years of the Spring and Autumn Period, there was a public doctor named Gong Sunkun and Zi Zi in the state of Zheng. He was the most beautiful man in China at that time, with superb martial arts and boundless strength, and was deeply appreciated by Zheng Zhuanggong. Later, the descendants of Gong Sunkun took Wang Fu as their surname, which was called Du surname. This is the origin of Han surname. At present, the surnames of the Han nationality are mainly distributed in Henan, Hunan, Hubei and Sichuan.
The surname of Mongolian capital comes from the period of Zhu Yuanzhang in Ming Dynasty. According to historical records, Kublai Khan had a son named Bi Caspian Sea, whose official name was Du Huachi. In the early Yuan Dynasty, he was an official in Ninghai Prefecture (now Yantai, Shandong Province), managing military, political and economic affairs. Zhu Yuanzhang hated Mongols so much that after overthrowing the Yuan Dynasty, he decided to put all the officials of the Yuan Dynasty to death. Because the Caspian Sea was an official in Ninghai State, the people collectively petitioned, hoping to spare his life. Zhu Yuanzhang then demoted the Caspian Sea to Shu Ren and gave it the surname "Du". Since then, later generations have taken Du as their surname, and later generations have moved to the whole country and even overseas.
People with the surname Du have the characteristics of Mongolians.
Because the ancestors of Lixin County have always said that they moved from Shandong, and in ethnic surveys, it is found that the family tree of Lixin, a Mongolian surname, is the same, so this family named Lixin is considered to be a descendant of Kublai Khan and Bi Caspian Sea.
Du Qingkun said that the characteristics of Mongolians can indeed be seen from people with Li Xindu's surname.
"Anyone who takes a surname in our village is very strong, straightforward and even a little grumpy." Du Qingkun said.
The reporter found that the people in the village have many faces, thick eyebrows and big eyes, and their brow bones are slightly higher than ordinary people, which is very similar to the Mongolian men now.
However, some people in Lixin did change their nationality to Mongolian.
"There is a villager in Zhenxi Village, Kantuan Town, also called the future, who is now working in Hefei. In 198 1 the fourth national census, his nationality was changed from Han to Mongolian. At that time, many villagers did not know the policy of changing nationality, so most people were still Han on their ID cards. " Du Futai, deputy director of the Lixin County Finance Bureau, said that people surnamed Du have lived with the Han people for a long time and have become accustomed to their current identity and life. Few people have the idea of changing their nationality.