Evolution is Speeding on Equatorial Region?

Plant and animal are living on tropical region evolved faster than temperate region. This new discover explain why tropical rain forest have more bio-diversty than other place on the world

This research is publicated in the journal Proceedings of the National Academy of
Sciences, May 2nd. A cencus agains all plant and animal in the world will reveal that the speciess richness are unbalance.

Bio-diversity overflow in the tropical area, but less if around the pole. Anxious with this preference, Shane Wright from University of  Auckland, New Zealand, and his team observe the molecular evolution level of 45 tropical plants. Then, team's invention are compared with the similliar speciess that founded on across line in the temperate climate.

The researcher check changing level of DNA base in genetic code from the plant specimen. Like the character in the 4 alphabet letter, base is a DNA molecule which compose for pronounce to form protein. If one of this letters: A(Adenin), T(Timin), G(Guanin), or C(Cytosine), changed with another, then the instruction are changing too. Such a condition will cause occur disfunction or result new protein and usefull. In this research, researcher discover evidence tropical plant have more than double base subtitution level compared their family in the temperate area.


Source: tempo interaktif
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