Aloha Mothur Folks,
Hope all is well with you and yours.
I am a retired Medical Laboratory Technologist with a strong background in Microbiology and Serology. I am healthy and have a healthy lifestyle in Hawaii. I started collecting data to monitor my gut Microbiome last year. The 16S rRNA Amplicon nucleotide sequences were produced on a Illumina machine. My interest in monitoring my gut microbiome start last year (2019) with my introduction to the services provided by uBiome. This company, as you probably know, is no longer in business. I was happy with their service and I am thankful that I was able to download all of the FastQ files before their server went offline. Their gut microbiome test collection kit and 16S rRNA Amplicon analysis was priced at about $100 per sample. I am currently looking for a company/laboratory that can supply a similar service. uBiome’s report included a comparison against all of the samples in their database. Customers provided general health information, such as height, weight physical activity, diet and disease states all these variables were considered in a very elaborate and graphic report. Most of the information was interesting especially for people who consider themselves as normal or average or at some extreme. The bacteria that populates my intestinal track is unique and their variety and quantity is of interest to me. When I stopped my strenuous cardiovascular exercise for four weeks it was interesting that the quantity of the genus Veillonella was reduced by more than one half everything else being unchanged. Please see the visualization of the FastQ data files which I upload to Sequentiabiitech.
I am 74 years old and I plan to monitor my gut microbiota yearly for the rest of my life. I am interested in how my diet effects the diversity of microorganisms in my gut as I age.
I am a participant in the “All of Us” Research Program and the Million Veterans Research Program which are not associated with my work as an unaffiliated “Citizen Scientist”.
I am currently accumulating knowledge and data using R, Qiime2, Phyloseq, and BioPython as well as Pandas as they applied to my FastQ files.
I have posed this same question to several sequencing company and other places with no satisfactory answer. I think I understand the basic principles of the, new to me, technology with regard to barcoding and multiplexing.
I don’t understand how I can have a file composed almost 500,000 sequences 150bp and there are not duplicated sequences. For that matter, none of the large datasets that I have computed to date contain any duplicated sequences! My old timers experience has taught me that there should be numerous bacterial cells of the same species in the stool samples that I submitted for analysis.
I was hoping someone might write a reply that would help me understand, what I currently consider to abnormal (not correct).
Thanks,
John Hasty BS. MT(ASCP) Retired