Thursday, December 21, 2017

New Assembly of Wheat Progenitor Offers Clues to Genome Evolution

Following on the heels of the first nearly complete assembly of the hexaploid bread wheat genome, scientists from the University of California, Davis, the USDA Agricultural Research Service, Johns Hopkins University, and many other institutions recently published a high-quality genome assembly for one of wheat’s diploid ancestors. Both efforts incorporated SMRT Sequencing to improve contiguity of the assemblies. The new publication reveals that the ancestral plant’s genome has evolved more quickly than usual, driven largely by repeats. The paper, “Genome sequence of the progenitor of the wheat D genome Aegilops tauschii,” comes from senior author Jan Dvořák; lead authors Ming-Cheng Luo, Yong…

Read More »