Carnivorous Plant Ejects Junk DNA

by Paul Gabrielsen 

The carnivorous humped bladderwort (Utricularia gibba), found on all continents except Antarctica, is a model of ruthless genetic efficiency. Only 3% of this aquatic plant’s DNA is not part of a known gene, new research shows. In contrast, only 2% of human DNA is part of a gene.
The bladderwort, named for its water-filled bladders (shown left) that suck in unsuspecting prey, is a relative of the tomato. Since their evolutionary split 87 million years ago, both plants have experienced episodes of genetic duplication where the plants’ DNA doubled in size…
(read more: Science/AAAS)            
(photos: L - Eye of Science/Science Source; R - Bruce Salmon)
Carnivorous Plant Ejects Junk DNA
by Paul Gabrielsen

The carnivorous humped bladderwort (Utricularia gibba), found on all continents except Antarctica, is a model of ruthless genetic efficiency. Only 3% of this aquatic plant’s DNA is not part of a known gene, new research shows. In contrast, only 2% of human DNA is part of a gene.

The bladderwort, named for its water-filled bladders (shown left) that suck in unsuspecting prey, is a relative of the tomato. Since their evolutionary split 87 million years ago, both plants have experienced episodes of genetic duplication where the plants’ DNA doubled in size…

(read more: Science/AAAS)           

(photos: L - Eye of Science/Science Source; R - Bruce Salmon)

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    Isn’t Junk DNA misnomer by now?
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