The Hindu Business Line : 20 new genes that 'influence height' identified

NEW YORK: It seems to be a 'tall' story. Scientists claim to have developed a clearer picture of what makes some people stand head and shoulders above others. They have identified a further 20 regions of the first common version of a gene, that has been linked to influencing height earlier, which together can make a difference of up to six centimetres.

Using DNA samples taken from over 30,000 people, the international researchers have identified the 20 loci (regions of genetic code) common variations of which actually influence adult height, the 'Nature Genetics' journal reported on Monday.

"The number and variety of genetic regions that we have found show that height is not just caused by a few genes operating in the long bones. Instead, our research implicates genes that could shed light on a whole range of important biological processes. By identifying which genes affect normal growth, we can begin to understand the processes that lead to abnormal growth -- not just height disorders but also tumour growth, for example,'' said lead researcher Dr Tim Frayling of the Peninsula Medical Sch ool. - PTI

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