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Comparison of Multiple Displacement Amplification (MDA) and Multiple Annealing and Looping-Based Amplification Cycles (MALBAC) in Limited DNA Sequencing Based on Tube and Droplet

State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, No. 2, Sipailou, Nanjing 210096, China
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Micromachines 2020, 11(7), 645; https://doi.org/10.3390/mi11070645
Received: 28 May 2020 / Revised: 25 June 2020 / Accepted: 26 June 2020 / Published: 29 June 2020
Whole genome amplification (WGA) is crucial for whole genome sequencing to investigate complex genomic alteration at the single-cell or even single-molecule level. Multiple displacement amplification (MDA) and multiple annealing and looping based amplification cycles (MALBAC) are two most widely applied WGA methods, which have different advantages and disadvantages, dependent on research objectives. Herein, we compared the MDA and MALBAC to provide more information on their performance in droplets and tubes. We observed that the droplet method could dramatically reduce the amplification bias and retain the high accuracy of replication than the conventional tube method. Furthermore, the droplet method exhibited higher efficiency and sensitivity for both homozygous and heterozygous single nucleotide variants (SNVs) at the low sequencing depth. In addition, we also found that MALBAC offered a greater uniformity and reproducibility and MDA showed a better efficiency of genomic coverage and SNV detection. Our results provided insights that will allow future decision making. View Full-Text
Keywords: whole genome amplification; droplets; multiple displacement amplification; multiple annealing and looping based amplification cycles whole genome amplification; droplets; multiple displacement amplification; multiple annealing and looping based amplification cycles
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Zhou, X.; Xu, Y.; Zhu, L.; Su, Z.; Han, X.; Zhang, Z.; Huang, Y.; Liu, Q. Comparison of Multiple Displacement Amplification (MDA) and Multiple Annealing and Looping-Based Amplification Cycles (MALBAC) in Limited DNA Sequencing Based on Tube and Droplet. Micromachines 2020, 11, 645.

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