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Latest Y chromosome Stories

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2009-06-05 11:20:00

Boys who carry a particular variation of the gene Monoamine oxidase A (MAOA), sometimes called the "warrior gene," are more likely not only to join gangs but also to be among the most violent members and to use weapons, according to a new study from The Florida State University that is the first to confirm an MAOA link specifically to gangs and guns. Findings apply only to males. Girls with the same variant of the MAOA gene seem resistant to its potentially violent effects on gang membership...

2009-04-26 23:00:00

A researcher at Ohio State University says he is working on producing larger bluegill by breeding super males with two Y chromosomes. The male bluegill are about twice as big as females and thus more profitable for fish farmers, The Columbus Dispatch reported Sunday. Han-Pin Wang, a researcher in the Ohio State aquaculture lab, uses a method based on the genetic difference between males and females. Like humans, male bluegill normally have an XY chromosome pair while females have XX. Wang...

2009-04-23 13:00:00

A U.S.-led international consortium of scientists says it has sequenced the bovine genome, showing the genetic features that separate cattle from humans. The six-year effort has produced the first full genome sequence of any ruminant species, officials said, consisting of at least 22,000-protein coding genes and is more similar to that of humans than to the genomes of mice or rats. University of Illinois Professor Harris Lewin said the cattle genome appears to have been significantly...

2009-04-20 14:08:29

An international team of more than 70 researchers says it has found nine new genes on the X chromosome that, when knocked-out, lead to learning disabilities. The scientists said they studied nearly all X chromosome genes in 208 families with learning disabilities. The researchers said they also discovered approximately 1 percent of X chromosome genes, when knocked-out, have no apparent effect on an individual's ability to function in the ordinary world. Estimates suggest the prevalence of...

2009-04-19 13:17:17

A collaboration between more than 70 researchers across the globe has uncovered nine new genes on the X chromosome that, when knocked-out, lead to learning disabilities. The international team studied almost all X chromosome genes in 208 families with learning disabilities - the largest screen of this type ever reported.Remarkably, the team also found that approximately 1ð”Æ’% of X chromosome genes, when knocked-out, have no apparent effect on an individual's...

2009-04-16 14:28:14

Berkeley -- Move over, Y chromosome "“ it's time X got some attention.In the first evolutionary study of the chromosome associated with being female, University of California, Berkeley, biologist Doris Bachtrog and her colleagues show that the history of the X chromosome is every bit as interesting as the much-studied, male-determining Y chromosome, and offers important clues to the origins and benefits of sexual reproduction."Contrary to the traditional view of being a passive player,...

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2009-03-11 07:53:34

Incipient sex chromosomes have been found in New Zealand's eponymous export, the kiwifruit. Researchers writing in the open access journal BMC Genomics have mapped the kiwifruit genome and pin-pointed the sex-determining locus. It has previously been suggested that, among the kiwifruit plant's small (<1um) chromosomes, lie a pair of X/Y-like chromosomes that result in its dioecism. Now a team led by Lena Fraser and colleagues at the New Zealand Institute for Plant and Food Research has...

2009-03-06 06:50:00

LONGMONT, Colo., March 6 /PRNewswire/ -- 2009 marks the bicentenary of Darwin's birth and the 150th anniversary of the publication of his groundbreaking work, "On the Origin of Species." In a stroke of timely relevance, a new book announces the next step men and women must take to turn away from certain animal instincts that may be hurtling the human race toward extinction. Cathy Currie details startling discoveries and offers ideas on how to avoid this fate in "Evolition: The Final Warning"...

2009-02-26 11:01:01

Cutting edge science has finally put to rest a 90-year-old mystery that involved nobility, revolution, murder and the long-romanticized story of a child's escape from the firing squad. Genomic analysis performed at the University of Massachusetts Medical School in cooperation with Institutions of Russian Academy of Science (VIGG) and Academy of Medical Sciences (MHRC) have confirmed that human remains found in the Ural Mountains in July 2007 are indeed those of the two "missing" children of...

2009-02-13 23:05:17

British researchers suggest the often quoted 1 in 10 figure for children born through infidelity is unlikely to be true. Dr. Turi King and Mark Jobling from the University of Leicester examined the Y chromosomes of more than 1,600 unrelated men with 40 surnames -- including variations in spelling. Sons inherit both the Y chromosome and generally the surname from their fathers, unlike daughters. The study, published in the journal Molecular Biology and Evolution, found men with rare surnames...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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