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Stats Science

Nearly 700 Genetic Factors Found To Influence Human Adult Height 68

damn_registrars writes: A consortium of scientists from many different countries reviewed genome-wide association study data sets of over 250,000 individuals in a search for genetic factors that influence adult height. Looking at Single Nucleotide Polymorphisms, the researchers found 697 distinct genetic markers that can explain some 20 percent of the heritability of human adult height. Previous studies had found around 180 such markers, but the larger sample set increased the ability to detect these changes, both within genes and in non-coding regions. Genes found in this set included ones from pathways not previously connected to skeletal growth.

This study is also significant for the sample size, which allows it to address whether the data from such large sets has a tendency to converge or diverge on genetic pathways; this study particularly favors the latter, which is of great utility toward studying other polygenetic conditions in the future. The original paper is likely paywalled, however the abstract is available for free and some of the collaborators behind it have other bits available for free in the meantime.
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Nearly 700 Genetic Factors Found To Influence Human Adult Height

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  • hmm (Score:4, Interesting)

    by buddyglass ( 925859 ) on Monday October 06, 2014 @11:40PM (#48080271)
    As a lay person, that a study involving 250,000 participants could explain only 20% of height heritability seems like a bad sign with respect to the pace at which we're likely unravel our own genetic code.
    • by fyngyrz ( 762201 )

      I think it seems like a good sign. I took it to imply that there may be more (considerably more) than one way to get a particular result. Blue eyes, strength, intelligence, height, etc.

      Just a thought. And I'm fairly cynical, too. :)

      Looking forward to the day parents can definitively select for intelligent children.

    • The other 80% is explained by eating your vegetables. Thanks mom.
      • by fyngyrz ( 762201 )

        ...just don't let her find out you're calling her a vegetable.

      • As I understand the summary, the researchers explained 20% of the heritability of height. Not height in general. If I haven't misread things, then 80% of the portion of height that is genetically determined is still unexplained. Diet no doubt has a huge effect on height, but (again, if I'm not misreading things) that's not what's being discussed here.
      • and boatloads of caffeine. for that extra little bit of height that you can lord over your siblings.

        • and boatloads of caffeine. for that extra little bit of height that you can lord over your siblings.

          Actually, it's been shown that caffeine (and nicotine) stunts growth.

      • The other 80% is explained by eating your vegetables. Thanks mom.

        Probably more likely that it would be eating high protein sources.

    • by Anonymous Coward

      I'm guessing that nutrition accounts for a large fraction of the remaining 80%.

      My father is tall, my mother is about average, and her brothers are tall. Somehow I ended up being the shortest male in my family by about 4 inches.

      It may be worth noting that I quit growing at age 13, but my father grew 2 inches after age 18. I suspect malnutrition in my case, since I was always underweight as a kid. I finally started eating properly after college, and I gained 25 lbs. I went from a BMI of 18-19 to a BMI of 22-2

    • I suspect almost every gene will have some sort of effect on height, however small. Development, metabolism, each of the senses and the effect they would have on preferred food, immune system and sickliness, etc.

  • Irken Almighty Tallest [wikia.com]

    The Irken Empire has a hierarchical class structure in which shorter individuals are both figuratively and literally looked down upon. The tallest Irken born in a specific generation takes command of the entirety of the Empire.

    I look forward to the day when humankind are ruled by our own Almighty Tallest.

  • by chesapeake ( 264414 ) <(ten.wocehtraef) (ta) (trebor)> on Tuesday October 07, 2014 @12:16AM (#48080395) Homepage

    To be brutally honest, it's not surprising that yet another genome-wide association study has failed to explain even half of the heritability of a trait / disease / condition.

    There's plenty of literature out there arguing whether these studies are a waste of money or not:

    * http://blog.goldenhelix.com/?p... [goldenhelix.com]
    * http://scienceblogs.com/geneti... [scienceblogs.com]
    * http://gettinggeneticsdone.blo... [blogspot.com.au]

    I would have been surprised if this study did find the majority of inherited variability in height.

    • At least one result of the study is obvious from first principles - the large number of genes involved in determining height. (Because height varies continuously).
    • Nice to know your professional opinion about how useless this study is.

      Here's the list of authors:

      Andrew R Wood, Tonu Esko, Jian Yang, Sailaja Vedantam, Tune H Pers, Stefan Gustafsson, Audrey Y Chu, Karol Estrada, Jian'an Luan, Zoltán Kutalik, Najaf Amin, Martin L Buchkovich, Damien C Croteau-Chonka, Felix R Day, Yanan Duan, Tove Fall, Rudolf Fehrmann, Teresa Ferreira, Anne U Jackson, Juha Karjalainen, Ken Sin Lo,

      • Nice to know your professional opinion about how useless this study is.

        Re-read my comment: I didn't say it was a useless study, just the the approach (GWAS) has not surprisingly failed to identify the majority of the inherited variability in height.

        That these studies regularly fail to do this is hardly a secret or controversial, and is well known in the field: it simply just isn't news.

      • Talk about name dropping...:-)

        I hope you're not thinking all these authors contributed equally. They did not. I'd venture a (well educated) guess that most of them "merely" had part of the data, and provided that in exhange for a name in publication. Most probably made their undergrads to do the analysis, so they could only share the results for meta analysis, instead of the raw data. So the the undergrads got their names in, too.

        Furthermore, all the authors are using the same method (GWAS) so it's onl
      • I counted 445 authors on this publication. The author list is so long that they had to put it in the back pages.

        When I was an undergrad, I remember the discovery of the top quark having a billion of authors. I counted and it had only 436 authors, http://dx.doi.org/10.1103%2FPh... [doi.org]

        The top quark author list motivated me to get out of high energy physics and into biophysics. I am sure there are papers out there with even longer author lists, but I am always glad to see significant papers with shorter lists as w

  • size matters (Score:5, Insightful)

    by swell ( 195815 ) <jabberwock@poetic.com> on Tuesday October 07, 2014 @01:07AM (#48080563)

    The significant thing to note here is that height is important. It wouldn't be studied otherwise. If you want to succeed in politics or upper management or any endeavor in which you are judged by others, you should be tall. Man or woman (but especially men), it makes no difference- you must be tall.

    You may be a great scientist or programmer or advertising copywriter, but unless you are tall you won't get credit for your work. It will go to your boss who is tall and doesn't even understand what you do.

    Exceptions include Hitler, Napoleon many comedians and malcontents and criminals... You have some in your family, you've seen them on TV. And why do short people act out? Because they feel the pressure that short people feel. They are never accepted, never quite good enough due to their stature. They overcompensate.

    When we learn to judge others by their merit, rather than their sometimes obvious 'short'comings, we will prevent many overreactions that lead to crime and worse. Randy Newman was wrong- short people can be just as beneficial to society, just as worthy as tall people.

    • The significant thing to note here is that height is important. It wouldn't be studied otherwise.

      Seriously? You didn't find it interested that 700 genes go into a single trait? Because that's fairly significant, IMO, and certainly more novel.

      You may be a great scientist or programmer or advertising copywriter, but unless you are tall you won't get credit for your work.

      Tesla was 6'2'', Edison was 5'10''. Einstein 5'9'', Stephen Hawking (something like) 5'7'', Godel 5'6''........If you're having problems with someone stealing your work, the problem isn't your height; the problem is you let people take advantage of you. Stop it.

      • Tesla was 6'2'', Edison was 5'10''. Einstein 5'9'', Stephen Hawking (something like) 5'7'', Godel 5'6''........If you're having problems with someone stealing your work, the problem isn't your height; the problem is you let people take advantage of you. Stop it.

        The world has changed. Remember when Einstein was important because he was the smartest guy around? Now Einstein is a sarcastic insult.

    • er.. yes,sure. Go tell that to Sarkozy (recent president of France), Berlusconi (recent president of Italy) and Aznar (recent president of Spain). All 3 of them were significantly below their countries average. Yup. Your comment is full of insight...
      • For some reason, in the US heightism is an issue. So are looks. All you need to do is watch american media (tv/movies/magazines) vs other countries' media. American personalities need to be above average in looks to be successful. Other countries' personalities, not so much,
    • Re:size matters (Score:5, Informative)

      by AmiMoJo ( 196126 ) * on Tuesday October 07, 2014 @07:02AM (#48081787) Homepage Journal

      Napoleon was actually of average height for his time. I agree with the rest of what you said.

    • While I agree with what you say about height, I think it overlooks something of greater importance. I am more interested in increasing the size of something else rather than overall height.
  • A human standing upright is made up of a lot of parts stacked upon each other.
    If you increase the size of any of the parts, the human's overall height increases.
    For each part, there should be at least some individual genes.

    From this thought, 700 seems like a pretty low number.

    • Remember that these were the most obvious 700, the ones that are visible even in a smallish study (250,000 subjects). And these only got us 20% of the way to explaining the genetic components of height. I doubt that the next 700 we find will get us anywhere close to another 20%, because the genes left undiscovered have effects that are so small that they were invisible to this study. Somehow, the remaining 80% of the genetic contribution to height is made up of such genes. That means many thousands of genes
      • by narcc ( 412956 )

        Remember also that there are fewer than 100,000 genes in the human genome.

        I thought it was closer to 20k?

        We need a biologist.

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