The Seven Daughters of Eve: The Science That Reveals Our Genetic Ancestry by Bryan SykesOne of the most dramatic stories of genetic discovery since James Watsons The Double Helix—a work whose scientific and cultural reverberations will be discussed for years to come. In 1994 Professor Bryan Sykes, a leading world authority on DNA and human evolution, was called in to examine the frozen remains of a man trapped in glacial ice in northern Italy. News of both the Ice Mans discovery and his age, which was put at over five thousand years, fascinated scientists and newspapers throughout the world. But what made Sykess story particularly revelatory was his successful identification of a genetic descendant of the Ice Man, a woman living in Great Britain today. How was Sykes able to locate a living relative of a man who died thousands of years ago? In The Seven Daughters of Eve, he gives us a firsthand account of his research into a remarkable gene, which passes undiluted from generation to generation through the maternal line. After plotting thousands of DNA sequences from all over the world, Sykes found that they clustered around a handful of distinct groups. Among Europeans and North American Caucasians, there are, in fact, only seven. This conclusion was staggering: almost everyone of native European descent, wherever they may live throughout the world, can trace their ancestry back to one of seven women, the Seven Daughters of Eve. Naming them Ursula, Xenia, Helena, Velda, Tara, Katrine, and Jasmine, Sykes has created portraits of their disparate worlds by mapping the migratory patterns followed by millions of their ancestors. In reading the stories of these seven women, we learn exactly how our origins can be traced, how and where our ancient genetic ancestors lived, and how we are each living proof of the almost indestructible strands of DNA, which have survived over so many thousands of years. Indeed, The Seven Daughters of Eve is filled with dramatic stories: from Sykess identification, using DNA samples from two living relatives, of the remains of Tsar Nicholas and Tsaress Alexandra, to the Caribbean woman whose family had been sold into slavery centuries before and whose ancestry Sykes was able to trace back to the Eastern coast of central Africa. Ultimately, Sykess investigation reveals that, as a race, what humans have in common is more deeply embedded than what separates us.
Which of the seven daughters of Eve are you descended from?
The Seven Daughters of Eve  is a book by Bryan Sykes that presents the science of human mitochondrial genetics to a general audience. Sykes explains the principles of genetics and human evolution , the particularities of mitochondrial DNA, and analyses of ancient DNA to genetically link modern humans to prehistoric ancestors. Following the developments of mitochondrial genetics, Sykes traces back human migrations, discusses the " out of Africa theory " and casts serious doubt upon Thor Heyerdahl 's theory of the Peruvian origin of the Polynesians , which opposed the theory of their origin in Indonesia. The title of the book comes from one of the principal achievements of mitochondrial genetics, which is the classification of all modern Europeans into seven groups, the mitochondrial haplogroups. Each haplogroup is defined by a set of characteristic mutations on the mitochondrial genome, and can be traced along a person's maternal line to a specific prehistoric woman. Sykes refers to these women as "clan mothers", though these women did not all live concurrently.
An allele is each of the alternative forms that the same gene can have. The alleles differ in their DNA sequence and can manifest in different results after expressing that gene, such as differences in the color of the eyes or in the blood group. Human beings are diploid, we have two sets of chromosomes, one of them from the father and the other from the mother, and each pair of alleles is located in the same place or locus of each chromosome. A haplotype is a group of alleles from different places loci of a chromosome that are inherited together. A haplogroup is a large group of haplotypes that are inherited together and that share a common ancestor.
In particular, he explored the genetics and settlement of Europe, showing that Europeans still exhibit ancient DNA patterns of the old hunter-gather peoples as well as newer patterns brought in by the early farmers from the Middle East. Tests for the genetic patterns of mitochondrial DNA -- passed on only by mothers to their daughters and sons -- showed seven major groupings in Europe. To bring them to life for his readers, Sykes gave them names to match their haplogroup letter. Listed by estimated age, they are:. What are mtDNA haplogroups? Human mtDNA diversity before migration out of Africa was quite restricted.
The Seven Daughters of Eve is a book by Bryan Sykes that presents the science of human mitochondrial genetics to a general audience. Sykes explains .
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This is a book by British geneticist Bryan Sykes. He pioneered the use of DNA to determine the ancient genetic ancestry of modern humans. - Join the Douglas Archives Community Network. In Professor Bryan Sykes, a leading world authority on DNA and human evolution, was called into examine the frozen remains of a man trapped in glacial ice in northern Italy.
Sykes, B. The seven daughters of Eve. New York: Norton. Sykes, Bryan. The Seven Daughters of Eve.