Gene expression of Microcystis aeruginosa during infection of cyanomyovirus Ma-LMM01     

Takashi Honda  Haruna Takahashi  Yoshihiko Sako  Takashi Yoshida 《Fisheries Science》2014,80(1):83-91

  相似文献   

Comparisons among MRI signs,apparent diffusion coefficient,and fractional anisotropy in dogs with a solitary intracranial meningioma or histiocytic sarcoma          下载免费PDF全文

Masae Wada  Daisuke Hasegawa  Yuji Hamamoto  Yoshihiko Yu  Aki Fujiwara‐Igarashi  Michio Fujita 《Veterinary radiology & ultrasound》2017,58(4):422-432

Although MRI has become widely used in small animal practice, little is known about the validity of advanced MRI techniques such as diffusion‐weighted imaging and diffusion tensor imaging. The aim of this retrospective analytical observational study was to investigate the characteristics of diffusion parameters, that is the apparent diffusion coefficient and fractional anisotropy, in dogs with a solitary intracranial meningioma or histiocytic sarcoma. Dogs were included based on the performance of diffusion MRI and histological confirmation. Statistical analyses were performed to compare apparent diffusion coefficient and fractional anisotropy for the two types of tumor in the intra‐ and peritumoral regions. Eleven cases with meningioma and six with histiocytic sarcoma satisfied the inclusion criteria. Significant differences in apparent diffusion coefficient value (× 10^?3 mm²/s) between meningioma vs. histiocytic sarcoma were recognized in intratumoral small (1.07 vs. 0.76) and large (1.04 vs. 0.77) regions of interest, in the peritumoral margin (0.93 vs. 1.08), and in the T2 high region (1.21 vs. 1.41). Significant differences in fractional anisotropy values were found in the peritumoral margin (0.29 vs. 0.24) and the T2 high region (0.24 vs. 0.17). The current study identified differences in measurements of apparent diffusion coefficient and fractional anisotropy for meningioma and histiocytic sarcoma in a small sample of dogs. In addition, we observed that all cases of intracranial histiocytic sarcoma showed leptomeningeal enhancement and/or mass formation invading into the sulci in the contrast study. Future studies are needed to determine the sensitivity of these imaging characteristics for differentiating between these tumor types.  相似文献   

The T allele at the g.1471620G>T in the EDG1 gene associated with high marbling in Japanese Black cattle is at a low frequency in breeds not selected for marbling     

Naoto WATANABE  Takahisa YAMADA  Sachiyo YOSHIOKA  Masayuki ITOH  Youichi SATOH  Masako FURUTA  Shigeki KOMATSU  Yoshihiko SUMIO  Tatsuo FUJITA  Yoshiyuki SASAKI 《Animal Science Journal》2010,81(1):142-144

Our previous study detected a single nucleotide polymorphism (SNP), g.1471620G > T , in the 5' flanking region of the endothelial differentiation sphingolipid G-protein-coupled receptor 1 ( EDG1 ) gene, which has been considered as a positional functional candidate for the gene responsible for marbling, and showed association of the g.1471620G > T SNP with marbling in Japanese Black beef cattle. In the present study, we investigated the allele frequency distribution of the g.1471620G > T SNP among the 5 cattle breeds, Japanese Black, Japanese Brown, Japanese Short Horn, Holstein, and Brown Swiss breeds. The T allele at the g.1471620G > T SNP associated with high marbling was found at high frequency in Japanese Black breed that has been subjected to a strong selection for high marbling, while the allele was absent or at very low frequencies in the other breeds that have not been strongly selected for high marbling. Based on this finding, we hypothesized that the pressure of the strong selection for high marbling in Japanese Black breed has increased the frequency of the T allele at the g.1471620G > T SNP in the EDG1 .  相似文献   

Screening for genes specific to coniferous species     

Ujino-Ihara T  Tsumura Y 《Tree physiology》2008,28(9):1325-1330

  相似文献   

Interannual variability in stock abundance of the neon flying squid, Ommastrephes bartramii, in the North Pacific Ocean during 1979–1998: impact of driftnet fishing and oceanographic conditions     

Akihiko Yatsu  Tomowo Watanabe  Junta Mori  Kazuya Nagasawa  Yukimasa Ishida  Toshimi Meguro  Yoshihiko Kamei  & Yasunori Sakurai 《Fisheries Oceanography》2000,9(2):163-170

Variability in catch-per-unit-effort (CPUE) was examined for the autumn cohort of Ommastrephes bartramii collected with research driftnets during 1979–1998 along five longitudinal transects passing through the Subarctic, Transitional and Subtropical Domains in the North Pacific. CPUE was generally low during the period of intensive commercial driftnet fishing (1980–1992) and increased following the 1992 moratorium on the use of large-scale driftnets. However, CPUE levels were low for the cohorts hatched in 1992 and 1996 (captured in subsequent years owing to a one-year life of O. bartramii ) that experienced low sea surface temperatures from hatching to recruitment. Among similar-aged squid collected from 180° and 179°30'W in June, mantle lengths were significantly greater in 1997 than during 1995–96. These findings suggest that the driftnet fishery and sea surface temperatures from hatching to recruitment strongly affected stock abundance and possibly growth.  相似文献   

Pharmacokinetics of human alpha-atrial natriuretic peptide (alpha-hANP) in cow and dog     

N Takemura  H Koyama  T Sako  K Ando  K Suzuki  S Motoyoshi  F Marumo 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1990,52(1):165-166

  相似文献   

Effect of dihydroheptaprenol on nitroblue tetrazolium reduction by swine alveolar macrophages     

T Watari  R Goitsuka  H Koyama  T Sako  T Uchino  S Araki  A Hasegawa  S Motoyoshi 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1989,51(3):630-631

  相似文献   

Genomics,genetics and breeding of tropical legumes for better livelihoods of smallholder farmers     

Chris Ojiewo  Emmanuel Monyo  Haile Desmae  Ousmane Boukar  Clare Mukankusi‐Mugisha  Mahendar Thudi  Manish K. Pandey  Rachit K. Saxena  Pooran M. Gaur  Sushil K. Chaturvedi  Asnake Fikre  NPVR Ganga Rao  CV SameerKumar  Patrick Okori  Pasupuleti Janila  Jean Claude Rubyogo  Chigeza Godfree  Essegbemon Akpo  Lucky Omoigui  Stanley Nkalubo  Berhanu Fenta  Papias Binagwa  Michael Kilango  Magdalena Williams  Omari Mponda  David Okello  Mekasha Chichaybelu  Amos Miningou  Joseph Bationo  Dramane Sako  Sory Diallo  Candidus Echekwu  Muhammad Lawan Umar  Richard Oteng‐Frimpong  Haruna Mohammed  Rajeev K. Varshney 《Plant Breeding》2019,138(4):487-499

Legumes are important components of sustainable agricultural production, food, nutrition and income systems of developing countries. In spite of their importance, legume crop production is challenged by a number of biotic (diseases and pests) and abiotic stresses (heat, frost, drought and salinity), edaphic factors (associated with soil nutrient deficits) and policy issues (where less emphasis is put on legumes compared to priority starchy staples). Significant research and development work have been done in the past decade on important grain legumes through collaborative bilateral and multilateral projects as well as the CGIAR Research Program on Grain Legumes (CRP‐GL). Through these initiatives, genomic resources and genomic tools such as draft genome sequence, resequencing data, large‐scale genomewide markers, dense genetic maps, quantitative trait loci (QTLs) and diagnostic markers have been developed for further use in multiple genetic and breeding applications. Also, these mega‐initiatives facilitated release of a number of new varieties and also dissemination of on‐the‐shelf varieties to the farmers. More efforts are needed to enhance genetic gains by reducing the time required in cultivar development through integration of genomics‐assisted breeding approaches and rapid generation advancement.  相似文献   

Factors affecting the dynamics of the population of Fagus crenata in the Takakuma Mountains, the southern limit of its distribution area     

Hiromi Mizunaga  Shizuo Sako  Yuri Nakao  Yoshitaka Shimono 《Journal of Forest Research》2005,10(6):481-486

The refugee population of Fagus crenata in the Takakuma Mountains, Kyushu, Japan, represents the southern limit of this species' distribution area. Because this population is the most exposed to the global warming effect, records of this population are likely to provide useful information on the response of this species to global warming. The aim of this study was to record the present status of this valuable population, enabling judgment of its sustainability. The density of successive F. crenata trees and saplings was low regardless of the coverage of dwarf bamboo. Moreover, the proportion of empty nuts observed was considerably high, suggesting to be the likely major factor limiting recruitment of saplings or successors in this population. Radial growth of F. crenata was shown to have been decreasing for the past 50 years, and there was a significantly negative correlation with the warmth index. The decreasing growth rate and poor regenerative ability caused by the high proportion of empty nuts suggest the possibility that this population will degrade further in the future, possibly being replaced by shrubs and small tree species.  相似文献   

Anisotropy and corotation of galactic cosmic rays     

Amenomori M  Ayabe S  Bi XJ  Chen D  Cui SW  Danzengluobu  Ding LK  Ding XH  Feng CF  Feng Z  Feng ZY  Gao XY  Geng QX  Guo HW  He HH  He M  Hibino K  Hotta N  Hu H  Hu HB  Huang J  Huang Q  Jia HY  Kajino F  Kasahara K  Katayose Y  Kato C  Kawata K  Labaciren  Le GM  Li AF  Li JY  Lou YQ  Lu H  Lu SL  Meng XR  Mizutani K  Mu J  Munakata K  Nagai A  Nanjo H  Nishizawa M  Ohnishi M  Ohta I  Onuma H  Ouchi T  Ozawa S  Ren JR  Saito T  Saito TY  Sakata M  Sako TK  Sasaki T  Shibata M  Shiomi A  Shirai T  Sugimoto H  Takita M  Tan YH  Tateyama N  Torii S 《Science (New York, N.Y.)》2006,314(5798):439-443

The intensity of Galactic cosmic rays is nearly isotropic because of the influence of magnetic fields in the Milky Way. Here, we present two-dimensional high-precision anisotropy measurement for energies from a few to several hundred teraelectronvolts (TeV), using the large data sample of the Tibet Air Shower Arrays. Besides revealing finer details of the known anisotropies, a new component of Galactic cosmic ray anisotropy in sidereal time is uncovered around the Cygnus region direction. For cosmic-ray energies up to a few hundred TeV, all components of anisotropies fade away, showing a corotation of Galactic cosmic rays with the local Galactic magnetic environment. These results have broad implications for a comprehensive understanding of cosmic rays, supernovae, magnetic fields, and heliospheric and Galactic dynamic environments.  相似文献