New tool facilitates genetic mapping of polyploid plants

An innovative genetic mapping system for polyploid species promises to facilitate the work of scientists and plant breeders who use genomics to develop varieties that are more productive and resistant to disease or drought. ...

First monoploid reference sequence of sugarcane

Most species are diploids and have two sets of chromosomes, one from each parent. In contrast, many crops have multiple sets of chromosomes (they are "polyploid") and their complex genomes are more difficult to sequence and ...

Genome duplication drives evolution of species

Many wild and cultivated plants arise through the combination of two species. The genome of these so-called polyploid species often consists of a quadruple set of chromosomes—a double set for each parental species—and ...