Scientists discover dozens of new genes for hair colour

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Scientists discover dozens of new genes for hair colour‘The Guardian

Scientists discover dozens of new genes for hair colour

Forensic scientists are a step closer to predicting the colour of a suspect’s hair from their DNA alone after the discovery of more than 100 new genes that influence the shade of a person’s locks.

A test based on the new genetic markers was 10-20% more accurate than existing forensic tests and was most reliable for red or black hair, with brown or blond hair proving harder to predict, researchers said.

‘If someone leaves blood at a crime scene, you could say from their DNA whether they had black or red hair with about 90% certainty,’ said Tim Spector, a lead author on the work at King’s College London.

The colour of a person’s hair is one of the most heritable features of their appearance, with studies on twins suggesting that genetics explains up to 97% of hair colour. Until now scientists have known of only 13 genes that affect where an individual’s hair will lie on the scale from light to dark.

After studying the DNA of nearly 300,000 people, researchers from King’s and Erasmus MC in Rotterdam uncovered 124 genes that contributed to hair colour, either by directly affecting the production and distribution of the natural pigment melanin or through other biological mechanisms, many of which are still unclear.

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  • Publisher: the Guardian
  • Date: 2018-04-16T16:27:48.000Z
  • Author: Ian Sample
  • Twitter: @guardian
  • Citation: Web link

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Not to change the topic here:

Hair colour? It’s in the genes ‘ all 124 of them

Florence Welch and Ed Sheeran are recognised by their flaming red locks, Jennifer Lawrence and Margot Robbie swear by their golden tresses and Zayn Malik has quit the bleach to showcase his natural colour.

And up until today, it was thought that a dozen or so genes were the key factors in determining our natural hair colour.

Now London academics have revealed that the reasons for diversity in human hair are far more numerous than previously thought.

A team from King’s College London and Erasmus university in Rotterdam discovered that 124 genes ‘ 100 more than previously known ‘ play a major role in determining hair colour. 

It could even assist forensic scientists in detecting the hair colour of criminals from DNA samples found at crime scenes.

  • Publisher: Evening Standard
  • Date: 2018-04-16T16:17:00Z
  • Author: Ross Lydall
  • Twitter: @standardnews
  • Citation: Web link

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Depression: Dozens of genes linked to mental illness discovered by scientists

An analysis of the DNA of 300,000 people in the UK – the biggest of its kind – identified almost 80 genes that could be involved in the devastating condition.

Although environmental factors play a role in many cases of depression genetics are also known to be crucially important.

Lead author Dr David Howard, of Edinburgh University’s Centre for Clinical Brain Sciences, said drugs that target the genes could improve mental health.

The findings also provide new clues to the causes of depression and we hope it will narrow down the search for therapies that could help people living with the condition.

He said: “This study identifies genes that potentially increase our risk of depression – adding to the evidence it is partly a genetic disorder.

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  • Publisher: Express.co.uk
  • Date: 2018-04-16T17:50:00+01:00
  • Author:
  • Citation: Web link

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Scientists discover dozens of new genes for hair colour
Apr 16th, 2018 09:27 UTC Forensic scientists are a step closer to predicting the colour of a suspect’s hair from their DNA alone after the discovery of more than 100 new genes that influence the shade of a person’s locks. A test based on the new genetic markers was 10-20% more

Hair colour? It’s in the genes ‘ all 124 of them
Apr 16th, 2018 08:27 UTC And up until today, it was thought that a dozen or so genes were . and Erasmus university in Rotterdam discovered that 124 genes ‘ 100 more than previously known ‘ play a major role in determining hair colour. Hair trend alert: decorative bows

In case you’re also interested:

Depression: Dozens of genes linked to mental illness discovered by scientists
Apr 16th, 2018 10:50 UTC An analysis of the DNA of 300,000 people in the UK – the biggest of its kind – identified almost 80 genes that could be involved in the devastating condition. The mental illness blights the lives of sufferers and their families. It is second-leading cause

Study identifies more than a hundred new genes that determine hair color
Apr 16th, 2018 10:50 UTC Scientists have discovered 124 genes that play a major role in determining human hair . previous genetic studies only identified a dozen or so hair colour genes. The new study, published today in Nature Genetics, largely explains the genetic knowledge

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