
Next-Generation Sequencing Data Analysis370
increase in read length. For example, SPAdes, originally developed for de
novo assembly of Illumina short reads [15], has been revised to enable use
of both short and long but less accurate PacBio and ONT reads to achieve
hybrid assembly [16]. New long- read de novo genome assemblers, such as
miniasm [17], Flye [18], NECAT [19], and Raven [20], have been developed
more recently. To accommodate mapping of long reads to a reference genome,
BWA- MEM was a rst attempt to align long reads with the widely used BWA
algorithm. With ultra- long but noisier reads becoming more common, add-
itional aligners, such ...