| Wolbachia as a bacteriocyte-associated nutritional mutualist T Hosokawa, R Koga, Y Kikuchi, XY Meng, T Fukatsu Proceedings of the National Academy of Sciences 107 (2), 769-774, 2010 | 893 | 2010 |
| Host plant specialization governed by facultative symbiont T Tsuchida, R Koga, T Fukatsu Science 303 (5666), 1989-1989, 2004 | 654 | 2004 |
| Symbiotic bacterium modifies aphid body color T Tsuchida, R Koga, M Horikawa, T Tsunoda, T Maoka, S Matsumoto, ... Science 330 (6007), 1102-1104, 2010 | 499 | 2010 |
| Horizontal gene transfer from diverse bacteria to an insect genome enables a tripartite nested mealybug symbiosis F Husnik, N Nikoh, R Koga, L Ross, RP Duncan, M Fujie, M Tanaka, ... Cell 153 (7), 1567-1578, 2013 | 454 | 2013 |
| Evolutionary Relationships of Three New Species of Enterobacteriaceae Living as Symbionts of Aphids and Other Insects NA Moran, JA Russell, R Koga, T Fukatsu Applied and Environmental Microbiology 71 (6), 3302-3310, 2005 | 451 | 2005 |
| Changing partners in an obligate symbiosis: a facultative endosymbiont can compensate for loss of the essential endosymbiont Buchnera in an aphid R Koga, T Tsuchida, T Fukatsu Proceedings of the Royal Society of London. Series B: Biological Sciences …, 2003 | 420 | 2003 |
| Wolbachia Infections Are Virulent and Inhibit the Human Malaria Parasite Plasmodium Falciparum in Anopheles Gambiae GL Hughes, R Koga, P Xue, T Fukatsu, JL Rasgon PLoS pathogens 7 (5), e1002043, 2011 | 404 | 2011 |
| Diversity and geographic distribution of secondary endosymbiotic bacteria in natural populations of the pea aphid, Acyrthosiphon pisum T Tsuchida, R Koga, H Shibao, T Matsumoto, T Fukatsu Molecular ecology 11 (10), 2123-2135, 2002 | 367 | 2002 |
| Rickettsia Symbiont in the Pea Aphid Acyrthosiphon pisum: Novel Cellular Tropism, Effect on Host Fitness, and Interaction with the Essential Symbiont Buchnera M Sakurai, R Koga, T Tsuchida, XY Meng, T Fukatsu Applied and environmental microbiology 71 (7), 4069-4075, 2005 | 301 | 2005 |
| Spiroplasma Symbiont of the Pea Aphid, Acyrthosiphon pisum (Insecta: Homoptera) T Fukatsu, T Tsuchida, N Nikoh, R Koga Applied and Environmental Microbiology 67 (3), 1284-1291, 2001 | 284 | 2001 |
| Cellular mechanism for selective vertical transmission of an obligate insect symbiont at the bacteriocyte–embryo interface R Koga, XY Meng, T Tsuchida, T Fukatsu Proceedings of the National Academy of Sciences 109 (20), E1230-E1237, 2012 | 283 | 2012 |
| The Secondary Endosymbiotic Bacterium of the Pea Aphid Acyrthosiphon pisum (Insecta: Homoptera) T Fukatsu, N Nikoh, R Kawai, R Koga Applied and environmental microbiology 66 (7), 2748-2758, 2000 | 277 | 2000 |
| Facultative symbiont infections affect aphid reproduction JC Simon, S Boutin, T Tsuchida, R Koga, JF Le Gallic, A Frantz, ... PLoS One 6 (7), e21831, 2011 | 210 | 2011 |
| Insect’s intestinal organ for symbiont sorting T Ohbayashi, K Takeshita, W Kitagawa, N Nikoh, R Koga, XY Meng, ... Proceedings of the National Academy of Sciences 112 (37), E5179-E5188, 2015 | 183 | 2015 |
| Evolutionary replacement of obligate symbionts in an ancient and diverse insect lineage R Koga, GM Bennett, JR Cryan, NA Moran Environmental microbiology 15 (7), 2073-2081, 2013 | 183 | 2013 |
| Drastic genome reduction in an herbivore’s pectinolytic symbiont H Salem, E Bauer, R Kirsch, A Berasategui, M Cripps, B Weiss, R Koga, ... Cell 171 (7), 1520-1531. e13, 2017 | 173 | 2017 |
| Small genome symbiont underlies cuticle hardness in beetles H Anbutsu, M Moriyama, N Nikoh, T Hosokawa, R Futahashi, ... Proceedings of the National Academy of Sciences 114 (40), E8382-E8391, 2017 | 163 | 2017 |
| Standard methods for research on Apis mellifera gut symbionts P Engel, RR James, R Koga, WK Kwong, QS McFrederick, NA Moran Journal of Apicultural Research 52 (4), 1-24, 2013 | 157 | 2013 |
| Quenching autofluorescence of insect tissues for in situ detection of endosymbionts R Koga, T Tsuchida, T Fukatsu Applied Entomology and Zoology 44 (2), 281-291, 2009 | 150 | 2009 |
| Swapping symbionts in spittlebugs: evolutionary replacement of a reduced genome symbiont R Koga, NA Moran The ISME journal 8 (6), 1237-1246, 2014 | 148 | 2014 |