A crustacean has the most genes of any animal

A crustacean has the most genes of any animal - nsf.gov -...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
NSF Web Site Press Release 11-025 The Most Genes in an Animal? Tiny Crustacean Holds the Record New "model organism" to help environmental health protection The tiny water flea Daphnia has the most genes of any animal, some 31,000. Credit and Larger Version February 3, 2011 Scientists have discovered that the animal with the most genes--about 31,000--is the near-microscopic freshwater crustacean Daphnia pulex , or water flea. By comparison, humans have about 23,000 genes. Daphnia is the first crustacean to have its genome sequenced. The water flea's genome is described in a Science paper published this week by members of the Daphnia Genomics Consortium, an international network of scientists led by the Center for Genomics and Bioinformatics (CGB) at Indiana University (IU) Bloomington and the U.S. Department of Energy's Joint Genome Institute. " Daphnia 's high gene number is largely because its genes are multiplying, creating copies at a higher rate than other species," said project leader and CGB genomics director John Colbourne. "We estimate a rate that is three times greater than those of other invertebrates and 30 percent greater than that of humans." "This analysis of the Daphnia genome significantly advances our understanding of how an organism's genome interacts with its environment both to influence genome structure and to confer ecological and evolutionary success," says Saran Twombly, program director in the National Science Foundation (NSF)'s Division of Environmental Biology, which funded the research. "This gene-environment interplay has, to date, been studied in model organisms Daphnia , or water flea, with a clonal brood of offspring. Credit and Larger Version A defensive helmet helps protect Daphnia against predators. Credit and Larger Version Daphnia with mild defensive neckteeth; the teeth are used against predators. Credit and Larger Version
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

A crustacean has the most genes of any animal - nsf.gov -...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online