2.2 Illumina short-read sequencing
Chinese walnut was sequenced on the Illumina HiSeq X Ten platform using
20Kb libraries. The Illumina sequencing raw reads were processed with
SOAPnukev1.5.6 to removing adapters or low-quality bases with the
parameters is ā-n 0.01 -l 20 -q 0.1 -i -Q 2 -G -M 2 -A 0.5 ādā.
Finally, 62.87 Gb of clean reads were used to assemble after assessment
and error correction (Table S1).