The phrase "assembled separately" is correct and usable in written English.
It can be used to indicate that components or parts of an item are put together individually rather than as a single unit.
Example: "The furniture comes in several boxes, and each piece must be assembled separately before it can be used."
Alternatives: "put together individually" or "constructed separately".
In order to take platform dependent sequencing artifacts into consideration, 454 and Illumina reads were assembled separately using different assembly programs.
The reads from each library were assembled separately by Roche Newbler (GS-assembler) version 2.3.
Using MIA Mapping Iterative Assemblerr available at https://github.com/udo-stenzel/mapping-iterative-assembler, last accessed December 2013) mitochondrial genomes were assembled separately for each library.
Of these, two were from tea and two were from oil tea, which were combined and assembled separately using the transcriptome assembler Trinity [ 55].
ESTs from each separate cDNA library were clustered and assembled separately and subsequently the entire set of ESTs for all cDNA libraries were clustered and assembled together.
The BE and BEY sequences were assembled separately by using GS de novo assembler.
The remaining reads for each of the five libraries were assembled separately using the GS de novo assembler 2.6 (454 Life Sciences/Roche Diagnostics) with the -cdna option.
The reads from each technology were first assembled separately and then joined into a hybrid assembly to improve scaffold size and quality (Additional file 1 section II).
These divergent haplotypes, which were assembled separately in many cases, were the basis of a recent re-assembly of the genome [ 27].
Each sequenced BAC was assembled separately by SOAPde novo.
Haplotigs for MHC class I and II were assembled separately to avoid misassemblies owing to high sequence homology between HLA genes.
