Arabian Peninsula YDNA Project
Group Administrator: saeed.alromaithi@gmail.com
Group Co-Administrator: j_aljasmi@yahoo.com




Project Background:
Camels


Arabian Peninsula YDNA Project



For the first three or four centuries after the death of Prophet Muhammad (pbuh), the genealogy of Arabs from the Arabian Peninsula have been widely known and documented. As Arabian tribes grew, split and regrouped, new names have appeared by time that cannot be exactly tracked and linked back to the old and classical tribes that existed more than 1000 years ago.



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YDNA research progresses have opened new realms for research to try and find any lost connections between tribes that originated in the Arabian Peninsula and possibility further identify their Adnanite or Qahtanite lineages.

YDNA General Information


DNA (Deoxyribonucleic acid) is a kind of helix (double twisted) string of molecules containing genetic instructions. DNA comes packed into chromosomes which are associated groups of DNA segments known as genes. Females have 23 XX chromosomes while males have 22 XX chromosomes and one XY chromosome. The Y in the XY chromosome is passed from father to son and is not influenced by the mother. By tracing unique characteristics in the Y chromosome we may trace male ancestry.

In the case of Y DNA: A mutation occurs in a portion of the DNA of an individual's Y chromosome that will differentiate him from everybody else. He will pass his now unique DNA onto his male descendants who will do the same to theirs until further down the line another change occurs in the DNA of one other descendant and so the process will begin again. The result is that we may use these differences to distinguish between major groups and subgroups and so classify humanity into different Y DNA (groups) or Haplogroups.

Haplogroups are YDNA groups defined by comparative differences in a relatively stable section of the DNA known as SNP "Single Nucleotide Polymorphisms". Also, known gene markers (Mutations) on known locations of any man on his male DNA (or the Y-DNA) can be used to predict the haplogroup and are used to compare different persons for genetic relations. Family Tree DNA offer tests of most stable 12 markers to predict haplogroup and to be used for comparing persons YDNA. If related genetic relative found or simply a person wishes to increase his test accuracy, then higher marker tests are offered such as 37 marker test and 67 marker test. If haplogroup confirmation is needed, then deep SNP test is required. Further sub grouping of haplogroup is found by carying additional selective SNP tests.

Researchers have already defined about 30 haplogroups but number is increasing while more and more DNA is being tested. Each native nation of main parts of the world carries specific Haplogroup which relates them to their ancestor father who first founded the race. Subgroups (or subclades) have also been identified within the same haplogroup to define smaller groups within the same big group who share one clad ancestor.

Here is a rough world predicted haplogroup distribution map:





Basically, people within the same haplogroup share one common ancestor. Then based on YDNA markers (mutations in genes) their clad/tribal relations can be found all the way to brothers of the same family which are expected to be full match. Closeness is normally calculated by genetic distance calculator developed by genealogy researches. Most famous one used is Time to Most Recent Common Ancestor (or TMRCA) calculator generated by Family Tree DNA Project.

For further information on the subject, you can visit Family Tree DNA main home page at:

www.familytreedna.com/

The National Geographic Gnographic and IBM joint project at:

ww3.nationalgeographic.com/genographic/






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