The metabarcoding field has also been benefited from the development of refined laboratory methods that include the use of double tagged amplicons coupled to multiple PCR replicates, which are HTS sequenced in a multiplexed manner [ 92].
Therefore, classification as strong evidence requires that the data are validated by multiple biological and technical replicates, which may be analysed either within the same study or even better, independent studies.
For low copy number replicates which show multiple wells with no amplification, it is possible to determine when a single mutant JAK2 copy has been amplified.
Our results show increasing information obtained from additional replicates, which may tilt the argument towards use of multiple replicates but we have not done a comparison directly addressing this question.
These samples included the microbial content of taxonomically diverse ascidian species and multiple replicates of L. patella, which were collected at different times (2002, 2003, 2005, 2006, and 2007) and over an extensive transect.
Additionally, for every experimental condition for which multiple replicates were available, a median M and A value across replicates was calculated.
Bands of interest were excised using sterile scalpel blades from multiple replicate (2 10) samples, which were subsequently sequenced, in order to ensure that bands of the same mobility shared the same sequence identity.
Rather than a single study with no replicates, we chose an experimental design in which there were multiple replicates using different platforms and different sample populations.
A simple statistical method for estimating variances from microarray control data which does not require multiple replicates is presented.
Since some probes on Affymetrix arrays have multiple replicates, we combined measurements from these probes by taking the median, which resulted in 12 977 unique genes.
