نتایج جستجو برای: 1996
تعداد نتایج: 76768 فیلتر نتایج به سال:
Neotropical Rhagoletis species are arranged in four groups: nova,psalida,striatella and ferruginea, which include 18 species. On both sides of the Andes, the evolution of morphological differences among these groups has been suggested to be related to the Andes uplift process. In order to test this hypothesis, a phylogenetic analysis of morphological and molecular data was performed. The result...
Kazushi Imai, Seema S. Dalal, John Hambor, Peter Mitchell, Yasunori Okada, William C. Horton, and Jeanine D’Armiento Division of Molecular Medicine, Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, New York; Central Research Division, Pfizer Inc., Groton, Connecticut; Department of Pathology, School of Medicine, Keio University, Tokyo, Japan; and Emor...
Takehito Kawakami ([email protected]) Tetsuro Sameshima ([email protected]) Hironobu Hojo ([email protected]) Kaori Koga ([email protected]) Yoshiaki Nakahara ([email protected]) Bryan P. Toole ([email protected]) Junji Suzumiya ([email protected]) Yasunori Okada ([email protected]) Akinori Iwasaki ([email protected]) Kazuki Nabeshima (kaznabe...
Prior experience with conspecifics or essential resources, as well as physiological condition, can have important influences on an animal’s reproductive behavior. While effects of experience and physiological state (such as reproductive condition) are generally treated separately in theoretical discussions, they often interact. Noprevious study has attempted todistinguish effects of experience ...
The European cherry fruit fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae), is the key pest of sweet and sour cherries in many European countries and west Asia. It is a univoltine species of the west Palaearctic zone that undergoes obligatory pupal diapause. In this study, the development of R. cerasi pupae that were brought to an optimum temperature for postdiapause development following a l...
Wolbachia is an endosymbiont of diverse arthropod lineages that can induce various alterations of host reproduction for its own benefice. Cytoplasmic incompatibility (CI) is the most common phenomenon, which results in embryonic lethality when males that bear Wolbachia are mated with females that do not. In the cherry fruit fly, Rhagoletis cerasi, Wolbachia seems to be responsible for previousl...
Ryoko Muraoka, Michiko Okazaki, Yoko Fujimoto, Nobutoshi Jo, Ritsuko Yoshida, Tomoko Kiyoyama, Yuko Oura, Kazuo Hirakawa, Mayumi Jyukurogi, Kimiko Kawano*, Mika Okada, Yoko Shioyama, Kazunori Iryoda, Hideo Wakamatu and Norihiko Kawabata Miyazaki Prefecture Central Public Health Office, Miyazaki 880-0032, and Department of Microbiology, Miyazaki Prefectural Institute for Public Health and Enviro...
1. Reproductive behaviour is routinely studied with a view towards characterizing how an animal responds to variation in resource abundance and quality. This characterization is less commonly made with respect to reproductive physiology. 2. In the Walnut-infesting Fly, Rhagoletis juglandis , ovarian development is cued by the presence of the host fruit resource. In this study, I examined how ov...
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