I have a 16s rRNA amplicon sequences (next generation sequence), I want to find out the phylogenetic diversity of a region, How can I do that? please tell me the different approaches. thanking in anticipation.
It sounds like you are at the very beginning stage of analysis where you have .fasta or .fastq files?
If this is the case, the next step is to process them using a bioinformatics tool that can trim, quality-filter, etc. either, for OTU-based analysis, using mothur or QIIME (I am particularly fond of mothur, although this is a continuous debate in the field), or for ASV-based analysis using DADA2.