Is the fate destined to extinct men? What does the disappearing Y chromosome mean?

"Men are following the path of extinction", humanSex chromosomeProfessor Jennifer Graves of the Australian National University, a researcher of the University of Tokyo, is rippling.

In the history of evolution, the number of genes on the Y chromosome has decreased at a noteworthy pace and there is a possibility that it will disappear in the future. Will human beings of the future only have X chromosome, will it become a female only species?

Details are as below.Men on road to extinction - Telegraph

Australian National UniversityProfessor Jennifer Graves said, "The Y chromosome is disappearing and there is a possibility that it disappears within 5 million yearsRoyal Surgeon College of IrelandI talked to medical students in the open lecture held at. However, this does not necessarily mean the destruction of the human race, and there is a possibility that the "new human race" may be born in the future. It is suggested that it may follow the same path as a rodent that can reproduce despite having no important gene on the Y chromosome.

"To be a male you must have the Y chromosome, about 1,400 genes were on the Y chromosome 300 million years ago, but now only 45 (Note:WikipediaAlthough it is supposed to be 78 in the case of Y, the number of genes of the Y chromosome often varies depending on the material, Professor Graves45 pieces). With this momentum, genes on the Y chromosome will disappear in about 5 million years, "Professor Graves. "The Y chromosome is disappearing, the problem is what happens after it disappears"

Male sex is on Y chromosomeSRY(Sex-determining Region Y)It is determined by the gene gene, the function of this gene will develop a testicle (cancer) and secrete male hormones.

In this lecture entitled "The Decline of the Y Chromosome and the Future of the Male" this lecture discussed the disappearance of the Y chromosome and what it means to human beings.

"Humans can not be asexualized like lizards, so some genes essential to humans are inherited from male," Professor Graves. "But there is hope, too, in Eastern EuropeVolex subfamilyMologreming genus and JapaneseGreen ratsSeveral species such as SRY and Y chromosome do not have. But these rats' healthy males are running around everywhere. Some other gene is working instead of SRY. It is our current task to identify that gene. "