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Latest Y chromosome Stories

2009-02-12 09:00:45

Our surnames and genetic information are often strongly connected, according to a study funded by the Wellcome Trust. The research, published this week in the journal Molecular Biology and Evolution, may help genealogists create more accurate family trees even when records are missing. It also suggests that the often quoted "one in ten" figure for children born through infidelity is unlikely to be true.Dr Turi King and Professor Mark Jobling from the University of Leicester examined the Y...

2009-01-27 05:00:00

Affordable Access to DNA Testing Reveals Family History, Genetic Cousins, Ancestral Occupations, Geographic Origins and More PROVO, Utah, Jan. 27 /PRNewswire/ -- Ancestry.com, the world's largest online resource for family history, has reduced the prices of its genetic genealogy DNA tests, allowing consumers more affordable access to the family history information provided by these tests. Effectively immediately, the 33-marker paternal lineage test is now only $79 (down from $149). The...

2008-12-24 09:57:08

Anyone who has watched crime dramas on TV knows that forensic scientists can use DNA "profiling" to identify people from evidence gathered at a crime scene, establish a paternity link or help free an innocent person who has been wrongly jailed. A lesser known but rapidly growing application of DNA profiling is tracing a person's paternal ancestry"”a process known as genetic genealogy. The laboratories performing this testing often differ in their results, making data comparison between...

2008-11-13 18:00:07

A gene essential to growth and development of most organ systems is also vital to female, but not male, embryonic sexual development, U.S. researchers say. Researchers at the University of Illinois and the University of Texas say the findings lend support to a controversial hypothesis about mammalian sexual development. In terms of their sexual organs, all embryos look alike, study leader Humphrey Yao, of the University of Illinois said. "They have a common primordium, the foundation...

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2008-10-08 11:10:00

Scientists at the university where DNA fingerprinting originated have developed a new technique that shows men with the same surname are highly likely to be genetically linked. DNA fingerprinting was first introduced at Leicester University in 1984. Now, researchers at the university have demonstrated a new leap in developments that could help law enforcement agencies determine the surname of a male suspect or the victim of a crime. Genealogy researchers as well as crime scene investigators...

2008-09-24 21:00:30

Counting the copies of a specific gene in cells from a urine sample may provide a simple, non-invasive way to detect bladder cancer, U.S. researchers said. Researchers at The University of Texas M.D. Anderson Cancer Center in Houston said when the telltale gene, Aurora kinase A, is numerous and overexpressed in urothelial cells, errors during cell division follow. The new cells have too few or too many chromosomes, instead of the normal pairs of 23 chromosomes. "Abnormal chromosome counts...

2008-07-21 08:44:52

GeneTree, a DNA-enabled family history-sharing networking Web site designed to help people understand where their personal histories belong within the greater human genetic story, today added a Y-chromosome DNA testing option allowing participants to search for paternal line ancestors in the world's largest and most diverse genetic genealogy databases. Providing a Y-DNA testing service along with its existing mitochondrial DNA testing means GeneTree participants can now conveniently research...

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2008-06-20 00:50:00

Consumer DNA tests are being used by male adoptees to predict the surnames of their biological fathers. Adoptees are using the fact that men who share the same surname often have genetic similarities. By checking DNA databases for males sharing a genetic make-up similar to their own, adoptees can see if these men also share a surname. This process can provide the possible last name of the adoptee's biological father. The genetic similarities between men who share surnames occur in the Y...

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2008-01-09 14:41:44

DURHAM, N.C. -- Fungi don't exactly come in boy and girl varieties, but they do have sex differences. In fact, a new finding from Duke University Medical Center shows that some of the earliest evolved forms of fungus contain clues to how the sexes evolved in higher animals, including that distant cousin of fungus, the human. A team lead by Joseph Heitman, M.D. has isolated sex-determining genes from one of the oldest known types of fungi, Phycomyces blakesleeanus, findings which appear in...

2006-01-17 10:35:00

By Siobhan Kennedy DUBLIN -- Scientists in Ireland may have found the country's most fertile male, with more than 3 million men worldwide among his offspring. The scientists, from Trinity College Dublin, have discovered that as many as one in twelve Irish men could be descended from Niall of the Nine Hostages, a 5th-century warlord who was head of the most powerful dynasty in ancient Ireland. His genetic legacy is almost as impressive as Genghis Khan, the Mongol emperor who conquered...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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