specially I am looking for mercury resistant bacteria. Will one able to find bacteria with such function (mercury reduction) MerA. Please help. Thanks.
Amplicon sequencing would not be useful due to is frecuently used to analyze diversity using universal genes (16S, ITS). With shotgun you can assess microbial traits with software and databases as GOTTCHA (Genomic Origins Through Taxonomic Challenge) and KEGG (Kyoto Encyclopedia of Genes and Genomes)