Search

Your search keyword '"Spradling, Allan C."' showing total 481 results
Start Over Author "Spradling, Allan C."
481 results on '"Spradling, Allan C."'

2. A symbiotic physical niche in Drosophila melanogaster regulates stable association of a multi-species gut microbiota

Author

Dodge, Ren, Jones, Eric W, Zhu, Haolong, Obadia, Benjamin, Martinez, Daniel J, Wang, Chenhui, Aranda-Díaz, Andrés, Aumiller, Kevin, Liu, Zhexian, Voltolini, Marco, Brodie, Eoin L, Huang, Kerwyn Casey, Carlson, Jean M, Sivak, David A, Spradling, Allan C, and Ludington, William B

Subjects
Microbiology, Climate Change Impacts and Adaptation, Biological Sciences, Environmental Sciences, Nutrition, Prevention, Infectious Diseases, Digestive Diseases, 1.1 Normal biological development and functioning, Underpinning research, Animals, Drosophila melanogaster, Gastrointestinal Microbiome, Gastrointestinal Tract, Microbiota, Bacteria, Drosophila, Mammals
Abstract

The gut is continuously invaded by diverse bacteria from the diet and the environment, yet microbiome composition is relatively stable over time for host species ranging from mammals to insects, suggesting host-specific factors may selectively maintain key species of bacteria. To investigate host specificity, we used gnotobiotic Drosophila, microbial pulse-chase protocols, and microscopy to investigate the stability of different strains of bacteria in the fly gut. We show that a host-constructed physical niche in the foregut selectively binds bacteria with strain-level specificity, stabilizing their colonization. Primary colonizers saturate the niche and exclude secondary colonizers of the same strain, but initial colonization by Lactobacillus species physically remodels the niche through production of a glycan-rich secretion to favor secondary colonization by unrelated commensals in the Acetobacter genus. Our results provide a mechanistic framework for understanding the establishment and stability of a multi-species intestinal microbiome.

Published
2023

15. Cellular and molecular organization of the Drosophila foregut.

Author

Haolong Zhu, Ludington, William B., and Spradling, Allan C.

Subjects
FOREGUT, BIOLOGICAL evolution, DROSOPHILA, CIRCADIAN rhythms, CLOCK genes
Abstract

The animal foregut is the first tissue to encounter ingested food, bacteria, and viruses. We characterized the adult Drosophila foregut using transcriptomics to better understand how it triages consumed items for digestion or immune response and manages resources. Cell types were assigned and validated using GFP-tagged and Gal4 reporter lines. Foregut-associated neuroendocrine cells play a major integrative role by coordinating gut activity with nutrition, the microbiome, and circadian cycles; some express clock genes. Multiple epithelial cell types comprise the proventriculus, the central foregut organ that secretes the peritrophic matrix (PM) lining the gut. Analyzing cell types synthesizing individual PM layers revealed abundant mucin production close to enterocytes, similar to the mammalian intestinal mucosa. The esophagus and salivary gland express secreted proteins likely to line the esophageal surface, some of which may generate a foregut commensal niche housing specific gut microbiome species. Overall, our results imply that the foregut coordinates dietary sensing, hormonal regulation, and immunity in a manner that has been conserved during animal evolution. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

16. The Genome Sequence of Drosophila melanogaster

Author

Adams, Mark D., Celniker, Susan E., Holt, Robert A., Evans, Cheryl A., Gocayne, Jeannine D., Amanatides, Peter G., Scherer, Steven E., Li, Peter W., Hoskins, Roger A., Galle, Richard F., George, Reed A., Lewis, Suzanna E., Richards, Stephen, Ashburner, Michael, Henderson, Scott N., Sutton, Granger G., Wortman, Jennifer R., Yandell, Mark D., Zhang, Qing, Chen, Lin X., Brandon, Rhonda C., Rogers, Yu-Hui C., Blazej, Robert G., Champe, Mark, Pfeiffer, Barret D., Wan, Kenneth H., Doyle, Clare, Baxter, Evan G., Helt, Gregg, Nelson, Catherine R., Abril, Josep F., Agbayani, Anna, An, Hui-Jin, Andrews-Pfannkoch, Cynthia, Baldwin, Danita, Ballew, Richard M., Basu, Anand, Baxendale, James, Bayraktaroglu, Leyla, Beasley, Ellen M., Beeson, Karen Y., Benos, P. V., Berman, Benjamin P., Bhandari, Deepali, Bolshakov, Slava, Borkova, Dana, Botchan, Michael R., Bouck, John, Brokstein, Peter, Brottier, Phillipe, Burtis, Kenneth C., Busam, Dana A., Butler, Heather, Cadieu, Edouard, Chandra, Ishwar, Cherry, J. Michael, Cawley, Simon, Dahlke, Carl, Davenport, Lionel B., Davies, Peter, de Pablos, Beatriz, Delcher, Arthur, Deng, Zuoming, Mays, Anne Deslattes, Dew, Ian, Dietz, Suzanne M., Dodson, Kristina, Doup, Lisa E., Downes, Michael, Dugan-Rocha, Shannon, Dunkov, Boris C., Dunn, Patrick, Durbin, Kenneth J., Evangelista, Carlos C., Ferraz, Concepcion, Ferriera, Steven, Fleischmann, Wolfgang, Fosler, Carl, Gabrielian, Andrei E., Garg, Neha S., Gelbart, William M., Glasser, Ken, Glodek, Anna, Gong, Fangcheng, Gorrell, J. Harley, Gu, Zhiping, Guan, Ping, Harris, Michael, Harris, Nomi L., Harvey, Damon, Heiman, Thomas J., Hernandez, Judith R., Houck, Jarrett, Hostin, Damon, Houston, Kathryn A., Howland, Timothy J., Wei, Ming-Hui, Ibegwam, Chinyere, Jalali, Mena, Kalush, Francis, Karpen, Gary H., Ke, Zhaoxi, Kennison, James A., Ketchum, Karen A., Kimmel, Bruce E., Kodira, Chinnappa D., Kraft, Cheryl, Kravitz, Saul, Kulp, David, Lai, Zhongwu, Lasko, Paul, Lei, Yiding, Levitsky, Alexander A., Li, Jiayin, Li, Zhenya, Liang, Yong, Lin, Xiaoying, Liu, Xiangjun, Mattei, Bettina, McIntosh, Tina C., McLeod, Michael P., McPherson, Duncan, Merkulov, Gennady, Milshina, Natalia V., Mobarry, Clark, Morris, Joe, Moshrefi, Ali, Mount, Stephen M., Moy, Mee, Murphy, Brian, Murphy, Lee, Muzny, Donna M., Nelson, David L., Nelson, David R., Nelson, Keith A., Nixon, Katherine, Nusskern, Deborah R., Pacleb, Joanne M., Palazzolo, Michael, Pittman, Gjange S., Pan, Sue, Pollard, John, Puri, Vinita, Reese, Martin G., Reinert, Knut, Remington, Karin, Scheeler, Frederick, Shen, Hua, Shue, Bixiang Christopher, Sidén-Kiamos, Inga, Simpson, Michael, Skupski, Marian P., Smith, Tom, Spier, Eugene, Spradling, Allan C., Stapleton, Mark, Strong, Renee, Sun, Eric, Svirskas, Robert, Tector, Cyndee, Turner, Russell, Venter, Eli, Wang, Aihui H., Wang, Xin, Wang, Zhen-Yuan, Wassarman, David A., Weinstock, George M., Weissenbach, Jean, Williams, Sherita M., Woodage, Trevor, Worley, Kim C., Wu, David, Yang, Song, Yao, Q. Alison, Ye, Jane, Yeh, Ru-Fang, Zaveri, Jayshree S., Zhan, Ming, Zhang, Guangren, Zhao, Qi, Zheng, Liansheng, Zheng, Xiangqun H., Zhong, Fei N., Zhong, Wenyan, Zhou, Xiaojun, Zhu, Shiaoping, Zhu, Xiaohong, Smith, Hamilton O., Gibbs, Richard A., Myers, Eugene W., Rubin, Gerald M., and Venter, J. Craig

Published
2000

17. The BDGP gene disruption project: Single transposon insertions associated with 40% of Drosophila genes

Author

Bellen, Hugo J., Levis, Robert W., Liao, Guochun, He, Yuchun, Carlson, Joseph W., Tsang, Garson, Evans-Holm, Martha, Hiesinger, P. Robin, Schulze, Karen L., Rubin, Gerald M., Hoskins, Roger A., and Spradling, Allan C.

Subjects
Drosophila transposon P-element piggyBac mutagenesis
Abstract

The Berkeley Drosophila Genome Project (BDGP) strives to disrupt each Drosophila gene by the insertion of a single transposable element. As part of this effort, transposons in more than 30,000 fly strains were localized and analyzed relative to predicted Drosophila gene structures. Approximately 6,300 lines that maximize genomic coverage were selected to be sent to the Bloomington Stock Center for public distribution, bringing the size of the BDGP gene disruption collection to 7,140 lines. It now includes individual lines predicted to disrupt 5,362 of the 13,666 currently annotated Drosophila genes (39%). Other lines contain an insertion at least 2 kb from others in the collection and likely mutate additional incompletely annotated or uncharacterized genes and chromosomal regulatory elements. The remaining strains contain insertions likely to disrupt alternative gene promoters or to allow gene mis-expression. The expanded BDGP gene disruption collection provides a public resource that will facilitate the application of Drosophila genetics to diverse biological problems. Finally, the project reveals new insight into how transposons interact with a eukaryotic genome and helps define optimal strategies for using insertional mutagenesis as a genomic tool.

Published
2004

Catalog

Books, media, physical & digital resources
See catalog results