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FG News

HIGH GENETIC DIVERSITY IN CORALS FAVORING SURVIVAL

03 Dec 16

The researchers at the STRI (Smithsonian Tropical Research Institute), and Naos Molecular and Marine Laboratories gathered ancient coral reef fossils and determined their ages by using high-resolution geologic dating methods. The coral species fossilized at different points of time were compared. They found that the species in the Orbicella genus, a class of reef-building corals, were among the best-represented ones.

They further evaluated the existing and past numbers of various Orbicella species by genome sequencing them.  They found that even single individuals contained their genetic material in two copies. In some cases, one copy differed from the other which is termed as a genetic variant.

The population sizes of different species at different periods were estimated by analyzing the degree of genetic variation at specific intervals across the genome. Findings revealed that about 1 and 2 million years ago, half of the coral species in the Caribbean had become extinct mostly due to drastic environmental changes.

The particular group that survived was the Orbicella genus. Thanks to their genetic variation. The scientists believe that this will enable their continuous adaption to future climatic changes as well. 


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The Road Has Got its Street Hockey

22 Sep 17

Street Hockey is also known as dek hockey, ball hockey and road hockey. The sport is a variation of ice hockey. The sport is played outdoors on foot or can be played using inline or roller skates. ...
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Mary Fields Who Protected Wild West Stagecoaches

22 Sep 17

The Stagecoach Mary was the daring black pioneer who protected Wild West Stagecoaches. She was the first African-American woman mail carrier. The story of her life becomes clearer after the end of ...
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William McGregor to be Honoured again as his Grave is Redirected

21 Sep 17

William McGregor was a Scottish association football administrator in the Victorian era. He is regarded as the founder of the Football League that is the first organised association football league ...
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Ancient Defense Mechanism is No Longer to Fight Viruses

21 Sep 17

It has never been easy for the living creatures like plants, insects, animals and the humans to survive with changing environment and elements that create threat to them. There is ancient defence m ...
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Shikhar Dhawanto be Replaced in the Next International ODI

20 Sep 17

Sikhar Dhawn who is considered as the star of present cricket day, is supposed to be out of the series of one day matches against Australia.  A statement has been released by the Board of Cont ...
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