The red midrib and red fleck traits were found to be controlled by two closely linked dominant genes on linkage group (LG) B1.

FORBES: The Four-Leaf Clover Gene?

"I believe that the various investigating bureaus have said that they have seen these e-mail messages to a radical cleric, but that they were not a sufficient concern to open up an investigation, and there doesn't appear to be any linkage to any outside group in terms of the operation itself, " Benjamin said in his first television interview since taking up his post.

CNN: STORY HIGHLIGHTS

The intense interest of that country's inhabitants in their genealogies, and the fact that they are descended from a small group of founders, means that conditions for linkage mapping are particularly propitious.

ECONOMIST: Human genetics