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Analysis of bacterial diversity in the canine duodenum, jejunum, ileum, and colon by comparative 16S rRNA gene analysis: Molecular analysis of canine intestinal microbial community
Abstract
The study aim was to describe the diversity of the intraluminal intestinal microbial community in dogs by direct sequence analysis of the 16S rRNA gene. Intestinal content was collected from the duodenum, jejunum, ileum, and colon from six healthy dogs. Bacterial 16S rRNA gene was amplified with universal bacterial primers. Amplicons were ligated into cloning vectors and near-full-length 16S rRNA gene inserts were analyzed. From a total of 864 clones analyzed, 106 nonredundant 16S rRNA gene sequences were identified. Forty-two (40%) sequences showed<98% sequence similarity to 16S rRNA gene sequences reported previously. Operation taxonomic units were classified into four phyla: Firmicutes, Fusobacteria, Bacteroidetes, and Proteobacteria. Clostridiales predominated in the duodenum (40% of clones) and jejunum (39%), and were highly abundant in the ileum (25%) and colon (26%). Sequences affiliated with Clostridium cluster XI and Clostridium cluster XIVa dominated in the proximal small intestine and colon, respectively. Fusobacteriales and Bacteroidales were the most abundant bacterial order in the ileum (33%) and colon (30%). Enterobacteriales were more commonly observed in the small intestine than in the colon. Lactobacillales occurred commonly in all parts of the intestine.
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Cited by
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Nguyen, T. L. A., Vieira-Silva, S., Liston, A., & Raes, J. (2015) · Disease Models & Mechanisms · doi:10.1242/dmm.017400 · Cited by 1,334
“The canine gut microbiota has also been investigated in several studies, given the similarity in gut morphology and functioning to the digestive system of humans (Middelbos et al., 2010; Suchodolski et al., 2008; Suchodolski et al., 2009).”
BackgroundThe Gastrointestinal Microbiome: A Review
Barko, P. C., McMichael, M. A., Swanson, K. S., & Williams, D. A. (2018) · Journal of Veterinary Internal Medicine · doi:10.1111/jvim.14875 · Cited by 750
Middelbos, I. S., Vester Boler, B. M., Qu, A., White, B. A., Swanson, K. S., & Fahey, G. C. (2010) · PLoS ONE · doi:10.1371/journal.pone.0009768 · Cited by 317
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Li, Q., Lauber, C. L., Czarnecki-Maulden, G., Pan, Y., & Hannah, S. S. (2017) · mBio · doi:10.1128/mbio.01703-16 · Cited by 148
Metadata
- Authors
- Suchodolski, J. S., Camacho, J., & Steiner, J. M.
- Venue
- FEMS Microbiology Ecology
- Publisher
- Oxford University Press (OUP)
- Published
- 2008-12
- Volume
- 66
- Issue
- 3
- Pages
- 567-578
- ISSN
- 0168-6496 (ISSN-L)
- 1574-6941
- OpenAlex
- W1779494490
- Cited by
- 280
- References
- 0
- FWCI
- 4.09
- Type
- journal article
- Language
- en
- Open access
- closed
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- Suchodolski, J. S., Camacho, J., & Steiner, J. M. (2008). Analysis of bacterial diversity in the canine duodenum, jejunum, ileum, and colon by comparative 16S rRNA gene analysis: Molecular analysis of canine intestinal microbial community. FEMS Microbiology Ecology. https://doi.org/10.1111/j.1574-6941.2008.00521.x
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