Monday, January 15, 2018

When A Single Reference is Not Enough

Maize is amazingly diverse. A study comparing genome segments from two inbred lines, for instance, revealed that half of the sequence and one-third of the gene content was not shared – that’s more diversity within the species than between some other species, for example humans and chimpanzees, which exhibit more than 98 percent sequence similarity. So how can researchers and commercial breeders rely upon a single reference genome to represent the genetic diversity in their germplasms? More and more scientists are deciding they cannot. At DuPont Pioneer, where DNA sequencing is paramount for R&D to reveal the genetic basis for…

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