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Check out the delicious spoof over at The DNA Exchange. It’s a program for the “National Education Conference of the National Society of Genome Service Specialists.” Sponsored by the likes of “UneedaTest, Inc.,” “Twist-of-Fate, Inc.,” and “BraveNew Analytics,” the conference program features panel discussions such as “Clinical trials—a barrier to patient uptake of new genetic tests” and “Fear of genetic disease—your best marketing tool.” Breakout counseling sessions include “How To Appear To Promote Autonomy, Empower Patients, And Seem Non-Directive – But Still Increase Hospital Revenue.”

No conference is complete without awards. This one includes the Huntington Award for most TestAll tests ordered for adult onset diseases in a pediatric setting and the GATTACA award For Strongest Advocate of the TestAll! Really, Really Expanded Newborn Screening Panel.

At day’s end, conferees can hoist a few at the Uneeda Party, “an evening of food, drink, fun, and clever sales pitches” by the sponsor, “not intended to influence your choice of genetic testing laboratory.”

It’s a wonderful send-up of some troubling potential conflicts of interest that may be brewing in the genetic counseling profession. Or is it?

Scientists find gene for love of the sea

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What did Thor Heyerdahl, Captain Ahab, and Odysseus have in common? They all may have shared a common variant of a gene for love of the sea.

Researchers at Mystic University in Connecticut have identified a gene associated with seafaringness, according to an article to be published tomorrow in the journal Genetic Determinism Today. Patterns of inheritance of the long-sought gene offers hope for “sailing widows,” and could help explain why the sailing life has tended to run in families and why certain towns and geographical regions tend historically to have disproportionate numbers of sea-going citizens.

The gene is a form of the MAOA-L gene, previously associated with high-risk behavior and thrill-seeking; another form of the gene, found last year, made news as the “warrior gene.” The current variant, dubbed 4C, was found by a genome-wide association study (GWAS) on 290 individuals from Mystic, CT, New Bedford, MA, and Cold Spring Harbor, NY—all traditional nineteenth-century whaling villages. Residents showed the presence of the 4C variant at a frequency more than 20 times above background in neighboring landlocked towns.

C. M. Ishmael, the lead researcher on the study, said the findings could be a boon to medicine. Although the International Whaling Commission outlawed commercial whaling in 1986, the research could benefit literally hundreds of “sailing widows” left alone for Wednesday-evening sailboat races up and down the East Coast. Each year, an average of 11 salt-stained Polo shirts wash up on the New England and Mid-Atlantic coasts, the only remains of lantern-jawed investment bankers and their half-million-dollar boats. Ishmael said he is trying to have the irrational urge to sail entered into the Diagnostic and Statistical Manual, standard reference for psychiatric diseases, in the next, fifth, edition.

“This receptor is an exciting potential target for new drug therapies,” Ishmael said in a phone interview. “We hope lots of companies will be interested in it. And venture capital, too.” Ishmael is himself CEO of a company, MysticGene, formed to develop such therapies. When asked about potential conflict of interest, he replied cryptically, “Well, duh.” Shares of MysticGene closed higher on Monday following the announcement.

The gene for seafaringness has long been an object of study for human geneticists. The trait was first described in 1919 by Charles Davenport, director of Cold Spring Harbor Laboratory, who named it “thalassophilia.” Using pedigree analysis and anecdotal correlation, Davenport identified thalassophilia as a sex-linked recessive gene and distinguished it clinically from wanderlust, or love of adventure. Although one might think naively that people living in towns with good harbors would tend to go to sea, Davenport suggested the reverse: those with the thalassophilia trait have tended to migrate toward regions with good harbors and found settlements there. The current study does nothing to refute Davenport’s analysis.

Further, a tentative expansion of the GWAS analysis to various racial groups largely confirms Davenport’s observations that thalassophilia is more prevalent in Scandinavians and the English, and less common in people of German ancestry.

Thalassophilia joins a rapidly growing list of complex behavioral traits that have been shown to have a genetic basis, thanks to GWAS. Besides the warrior gene, recent studies have found genetic links to promiscuity, aggressive behavior, especially while drinking, religiosity, and bipolar disorder, or manic depression—all traits that Davenport and other early human geneticists were deeply interested in. The difference is that modern science better understands the mechanisms involved.

“Seamen know very well that their cravings for the sea are racial,” Davenport wrote in 1919. “’It is in the blood,’ they say.” Today we know it’s not in the blood—it’s in the genes.

The true bits:

Garland E. Allen, “Is a New Eugenics Afoot?,” Science 294, no. 5540 (October 5, 2001): 59 -61. (http://www.sciencemag.org/content/294/5540/59.short)

Charles Benedict Davenport and Mary Theresa Scudder, Naval officers: their heredity and development (Carnegie Institution of Washington, 1919),http://books.google.com/books?id=EWESAAAAYAAJ&dq=naval%20officers%3A%20their%20heredity%20and%20development&pg=PP1#v=onepage&q&f=false.

Richard Alleyne, “A gene that could explain why the red mist descends,” Telegraph.co.uk,http://www.telegraph.co.uk/science/science-news/8219521/A-gene-that-could-explain-why-the-red-mist-descends.html.

Jeremy Taylor, “Violent-drunk gene discovered,”http://www.asylum.com/2010/12/23/bad-drunk-gene-discovered/.

Justin R. Garcia et al., “Associations between Dopamine D4 Receptor Gene Variation with Both Infidelity and Sexual Promiscuity,” ed. Jan Lauwereyns, PLoS ONE 5, no. 11 (11, 2010): e14162.

C. Frydman et al., “MAOA-L carriers are better at making optimal financial decisions under risk,” Proceedings of the Royal Society B: Biological Sciences (12, 2010),http://www.newscientist.com/article/dn19830-people-with-warrior-gene-better-at-risky-decisions.html.