'Exotic' genes may improve cotton yield and quality

Cotton breeders face a "Catch-22." Yield from cotton crops is inversely related to fiber quality. In general, as yield improves, fiber quality decreases, and vice-versa. "This is one of the most significant challenges for ...

The evolution of grain yield

A high grain yield is undoubtedly a desirable trait in cereal crops. Floret fertility is a key factor that determines the number of grains per inflorescence of cereals such as bread, wheat or barley. Nonetheless, until recently, ...

Evolution is unpredictable and irreversible, biologists show

Evolutionary theorist Stephen Jay Gould is famous for describing the evolution of humans and other conscious beings as a chance accident of history. If we could go back millions of years and "run the tape of life again," ...

Fisheries-induced evolution adds a bonus to good management

A new study published online by the Proceedings of the National Academy of Sciences (PNAS) is the first to determine whether genetic changes resulting from fishing pressure have any significant economic effects for the case ...

Teaching complete evolutionary stories increases learning

Many students have difficulty understanding and explaining how evolution operates. In search of better ways to teach the subject, researchers at Michigan State University developed complete evolutionary case studies spanning ...

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