You say tomato, I say retrotransposon

The oblong shape of some tomatoes arose from a gene duplication caused by a selfish genetic element, according to a linkurl:study;http://www.sciencemag.org/cgi/content/abstract/319/5869/1527 published today in Science. Before tomatoes were linkurl:cultivated;http://www.the-scientist.com/article/display/54040/ and grown around the world, wild tomatoes were a little-known, small, round South American fruit. But go down to the market today and you'll find juicy, ripe tomatoes of all shapes and si

Elie Dolgin
Mar 12, 2008
The oblong shape of some tomatoes arose from a gene duplication caused by a selfish genetic element, according to a linkurl:study;http://www.sciencemag.org/cgi/content/abstract/319/5869/1527 published today in Science. Before tomatoes were linkurl:cultivated;http://www.the-scientist.com/article/display/54040/ and grown around the world, wild tomatoes were a little-known, small, round South American fruit. But go down to the market today and you'll find juicy, ripe tomatoes of all shapes and sizes. When you bite into some of the pear-shaped varieties, you are not just eating tomatoes with a longer shape; new research shows it also has slightly longer DNA owing to the duplication of the radiantly named gene sun. linkurl:Esther van der Knaap;http://oardc.osu.edu/vanderknaap/ of Ohio State University in Wooster has been hunting the source of the elongated shape for years. In 2001, she narrowed her search to a locus on the short arm of chromosome 7 (tomatoes have 12 chromosomes), and in 2004, she mapped the gene...
sunThe Scientistsunsunsuna snack of the oblong tomatoes

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