This week, Genetic Engineering & Biotechnology News' Harry Glorikian and Brian Clancy round up what they call "sequencing trends worth watching." The first, they say, is the polarization of sequencing activity — "an increasing share of total high-throughput sequencing activity being conducted by the largest and smallest sequencing labs … driven by a series of centralization and decentralization forces that are acting on the space simultaneously." Glorikian and Clancy sug