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Alexandra Epp, Juliane Hobusch, Yannic C Bartsch, Janina Petry, Gina-Maria Lilienthal, Carolien A M Koeleman, Simon Eschweiler, Christian Möbs, Ashley Hall, Suzanne C Morris, Dominique Braumann, Christine Engellenner, Josephine Bitterling, Johann Rahmöller, Alexei Leliavski, Robina Thurmann, Mattias Collin, Kelley W Moremen, Richard T Strait, Véronique Blanchard, Arnd Petersen, Timo Gemoll, Jens K Habermann, Frank Petersen, Andreas Nandy, Helga Kahlert, Michael Hertl, Manfred Wuhrer, Wolfgang Pfützner, Uta Jappe, Fred D Finkelman, Marc Ehlers
In presence of high allergen dosis besides IgE also IgG antibodies can induce allergic reactions, whose severity is dependent on the induced type of IgG Fc glycosylation, what should be considered for new AIT protocols containing new adjuvants.
July 17, 2017: Journal of Allergy and Clinical Immunology
In Bon Goo, Jung Eun Kim, Myung Hun Kim, Hye-Sung Choi, Hee Jeong Kong, Jeong Ho Lee, In-Seok Park
This report describes the sex differentiation of the Korean rose bitterling, Rhodeus uyekii, from hatching to 170 days post-hatch (DPH) in relation to total length (TL), body weight (BW), and integral water temperature (IWT). The growth curve of TL from just hatching to 83 DPH was 5.144e(0.045t) (R² = 0.961; t, time), and that of BW was 2.398e(0.086t) (R² = 0.725). Primordial germ cells (PGCs) were observed at 17 DPH (7.9 mm TL, 3.74 mg BW, 374°C IWT), and thereafter began to protrude into the peritoneal cavity...
December 2016: Balsaeng'gwa Saengsig
Li-Juan Nie, Zhen-Dong Cao, Shi-Jian Fu
Fish that are active foragers usually perform routine activities while digesting their food; thus, their postprandial swimming capacity and related behavior adjustments might be ecologically important. To test whether digestion affect swimming performance and the relationships of digestion with metabolism and behavior in an active forager, we investigated the postprandial metabolic response, spontaneous swimming activities, critical swimming speed (Ucrit), and fast-start escape performance of both fasted and digesting (3h after feeding to satiation) juvenile rose bitterling (Rhodeus ocellatus)...
February 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
Carl Smith
Generalist parasites have the capacity to infect multiple hosts. The temporal pattern of host specificity by generalist parasites is rarely studied, but is critical to understanding what variables underpin infection and thereby the impact of parasites on host species and the way they impose selection on hosts. Here, the temporal dynamics of infection of four species of freshwater mussel by European bitterling fish (Rhodeus amarus) was investigated over three spawning seasons. Bitterling lay their eggs in the gills of freshwater mussels, which suffer reduced growth, oxygen stress, gill damage and elevated mortality as a result of parasitism...
February 2017: Oecologia
Kenji Saitoh, Kentaro Shindo, Yasufumi Fujimoto, Kiyotaka Takahashi, Tetsuo Shimada
Genotyping of endangered species is helpful for establishing and evaluating conservation strategies. Mitochondrial sequence data was analyzed from 541 individuals of a critically endangered fish, Acheilognathus typus from present-day range-wide localities to re-evaluate an in-progress restoration program around Lake Izunuma-Uchinuma, Miyagi, Japan. Acheilognathus typus showed low sequence diversity with only eight haplotypes and π and ĥ values of 0.59129 and 0.00118 respectively. Genetic data suggests Acheilognathus typus is adapted to pulsed environments and prone to population flush and crash...
2016: ZooKeys
Masato Nitta, Kazuya Nagasawa
A new dactylogyrid monogenean Dactylogyrus bicorniculus sp. nov. is described from the gills of the kazetoge bitterling, Rhodeus atremius atremius (Jordan and Thompson, 1914), an endemic species in Japan, from Saga Prefecture, northern Kyūshū. D. bicorniculus sp. nov. resembles Dactylogyrus bicornis Malevitskaja, 1941 and Dactylogyrus lophogonus Zhang and Ji, 1980 because they have two common features, a large V-shaped ventral bar and well-developed second marginal hooks. However, the new species is distinguished from these congeners by a shorter penis and an accessory piece...
October 2016: Parasitology International
Hyun Woo Gil, Hee Jeong Kong, Cheul Min An, Bong-Seok Kim, Sang-Gu Lim, In-Seok Park
In this study, we induced tetraploidy in Korean rose bitterling, Rhodeus uyekii, by applying various hydrostatic pressure shock conditions. Tetraploidy was not induced under 4500 psi pressure treatment in any experimental group. Instead, the induction rate of tetraploidy was highest under 7500 psi hydrostatic pressure treatment. As a result, when the processing method was similar and as the process time increased, the induction rate of each experimental group increased; however, there was no significant difference (P > 0...
2016: SpringerPlus
Jung Hyun Kim, Chun Mae Dong, Julan Kim, Cheul Min An, Hae Ja Baek, Hee Jeong Kong
Heat shock protein (HSP) 70, the highly conserved stress protein families, plays important roles in protecting cells against heat and other stresses in most animal species. In the present study, we identified and characterized four Hsp70 (RuHSP4, RuHSC70, RuHSP12A, RuGRP78) family proteins based on the expressed sequence tag (EST) analysis of the Korean rose bitterling R. uyekii cDNA library. The deduced RuHSP70 family has high amino acid identities of 72-99% with those of other species. Phylogenetic analysis revealed that RuHsp70 family clustered with fish groups (HSP4, HSC70, HSP12A, GRP78) proteins...
September 2015: Balsaeng'gwa Saengsig
Liu-Yi Penghan, Xu Pang, Shi-Jian Fu
To investigate the effects of starvation and acclimation temperature on the escape ability of juvenile rose bitterling (Rhodeus ocellatus), we measured the fast-start escape and constant acceleration swimming performance of fish fasted for 0 (control), 1 and 2 weeks and half-lethal periods (6 or 4 weeks) at two temperatures (15 and 25 °C). Fish acclimated at a high temperature exhibited shorter response latency (R), higher maximum linear velocity (V max) and longer escape distance during escape movement (D 120ms) than those at the low temperature...
June 2016: Fish Physiology and Biochemistry
Julan Kim, Ji Young Moon, Woo-Jin Kim, Dong-Gyun Kim, Bo-Hye Nam, Young-Ok Kim, Jung Youn Park, Cheul Min An, Hee Jeong Kong
Thioredoxin is a multifunctional antioxidant enzyme that belongs to the reductase family. In this study, we cloned and characterized thioredoxin 1 cDNA from the Korean rose bitterling Rhodeus uyekii (RuTrx). The full-length RuTrx cDNA consists of 674 bp with a 324 nt open reading frame (ORF) encoding a 107 aa protein. The deduced RuTrx amino acid sequence indicated a characteristic redox active site, (31)WCGPC(35). Pairwise alignment revealed RuTrx amino acid identity (55.1%-83.2%) with orthologs from various species of mammalia, amphibia, fish and bird...
2015: International Journal of Molecular Sciences
M Nishio, T Kawamoto, R Kawakami, K Edo, Y Yamazaki
The life history, reproductive ecology and habitat utilization of the Itasenpara (deepbody) bitterling Acheilognathus longipinnis were investigated in a lowland segment of the Moo River in Toyama Prefecture, central Honshu, Japan. Analysis of 1285 individuals revealed that the study population comprised a single size class, an age at maturation of 3 months and a life span of 1 year. On the basis of the growth pattern, the life cycle was divided into two stages: the juvenile stage, characterized by rapid growth, and the adult stage at which growth ceased...
September 2015: Journal of Fish Biology
Martin Reichard, Karel Douda, Mirosław Przybyłski, Oana P Popa, Eva Karbanová, Klára Matasová, Kateřina Rylková, Matej Polačik, Radim Blažek, Carl Smith
Predicting the impacts of non-native species remains a challenge. As populations of a species are genetically and phenotypically variable, the impact of non-native species on local taxa could crucially depend on population-specific traits and adaptations of both native and non-native species. Bitterling fishes are brood parasites of unionid mussels and unionid mussels produce larvae that parasitize fishes. We used common garden experiments to measure three key elements in the bitterling-mussel association among two populations of an invasive mussel (Anodonta woodiana) and four populations of European bitterling (Rhodeus amarus)...
August 7, 2015: Proceedings. Biological Sciences
R G Fattakhov, A V Ushakov, T F Stepanova, O E Trotsenko, I B Ivanova, A G Dragomeretskaya
Investigations were conducted in late June to early June 2013. The population density of mollusks of the genus Juga in the shoreline and littoral covered by meadow waters was 10 to 30 specimens/m2; there were solitary specimens of the genus Parafossarulus. Fourteen out of 39 fish species were invaded by metacercariae of Clonorchis. Manchurian spiny loaches (Leptobotia) and Light's bitterling (Rhodeus lighti) are first registered to be hosts of Clonorchis. The metacercariae of Metagonimus yokogawai were detected in silver carp (Hypophthalmichthys molitrix) and those of Nanophyetus salmincola schikhobalowi were in the kidneys, fin muscles, and gills of taimen (Hucho) and lenok (Brachymystax lenok) from the Khor River...
April 2015: Meditsinskaia Parazitologiia i Parazitarnye Bolezni
Hee Jeong Kong, Il Kyu Lee, Julan Kim, Woo-Jin Kim, Hyung Soo Kim, Wang Sik Cho, Dong-Wook Kim, Jung Youn Park, Cheul Min An
The potential impact of natural and synthetic estrogens on aquatic ecosystems has become a subject of great interest in recent years. One synthetic estrogen, 17-alpha-ethinylestradiol (EE2), is present in municipal sewage discharges and causes gonad alterations in various fish species. To understand the possible damage caused by EE2, male Rhodeus uyekii were exposed to 100 ng/L EE2 for 7 days. RNA-Seq was performed to assess the effects of EE2 on gene expression in hepatic and skin tissues. The analysis revealed that EE2 induced the expression of various genes, including sex hormone genes, anti-Mullerian hormone, vitellogenin, and estrogen receptor alpha; cancer genes, breast cancer anti-estrogen resistance protein 3, caveolin 2, and Smad2; and apoptotic genes, p53, Bcl-2, TNF-α, and WDR36...
December 2015: Marine Genomics
Carl Smith, André Philips, Martin Reichard
The ability to attract mates, acquire resources for reproduction, and successfully outcompete rivals for fertilizations may make demands on cognitive traits--the mechanisms by which an animal acquires, processes, stores and acts upon information from its environment. Consequently, cognitive traits potentially undergo sexual selection in some mating systems. We investigated the role of cognitive traits on the reproductive performance of male rose bitterling (Rhodeus ocellatus), a freshwater fish with a complex mating system and alternative mating tactics...
June 22, 2015: Proceedings. Biological Sciences
Chunzhu Xu, Fei Xie, Xue Zhang, Shuai Zhao
The complete mitogenome sequence of Amur bitterling (Rhodeus sericeus) was determined using long PCR. The genome was 16,581 bp in length and contained 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, 1 origin of L strand replication and 1 control region. The overall base composition of the heavy strand was A (28.9%), C (27.2%), T (26.6%), and G (17.3%). The control region was 925 bp in length and the A + T content of the region was 63.5%. The extended termination-associated sequence domain, the central conserved domain and the conserved sequence block domain are defined in the mitochondrial genome control region of Amur bitterling...
July 2016: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
Ju Lan Kim, Hee Jeong Kong, Hyung Soo Kim, Woo-Jin Kim, Dong-Gyun Kim, Bo-Hye Nam, Young-Ok Kim, Cheul Min An
Serine-arginine-rich nuclear protein LUC7L plays an important role in the regulation of myogenesis in mice. In the present study, we isolated and characterized the Korean rose bitterling Rhodeus uyekii Luc7l cDNA, designated RuLuc7l. The RuLuc7l cDNA is 1,688 bp long and encodes a 364-amino-acid polypeptide containing serine/arginine-rich region at the C-terminus. The deduced RuLuc7l protein has high amino acid identity (71-97%) with those of other species including human. Phylogenetic analysis revealed that RuLUC7L clustered with fish LUC7L proteins...
December 2014: Balsaeng'gwa Saengsig
Yunying Cheng, Wenjing Tao
The complete mitochondrial genome was sequenced from one of the endemic bitterling fish in China. The mitochondrial genome sequence was 16,575 bp in size, and the gene order and contents were identical with the species of the same subfamily like T. lanceolata, T. limbata, Acheilognathus macropterus and A. yamatsutae. Five genes (COII, COIII, ND3, ND6, and CYTB) had an incomplete stop codon. Base composition of the genome is A (29.2%), T (27.4%), C (26.2%), and G (17.2%) with an A+T-rich feature (56.6%) as that of other vertebrate mitochondrial genomes...
November 2016: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
W J Kim, E H Shin, H J Kong, H S Kim, B S Kim, B H Nam, Y O Kim, C H Kim, H Jung, C M An
Korean rose bitterling (Rhodeus uyekii) is a freshwater fish endemic to Korea. Natural populations of this species have experienced severe declines as a result of habitat fragmentation and water pollution. To conserve and restore R. uyekii, the genetic diversity of this species needs to be assessed at the population level. Eighteen novel polymorphic microsatellite loci for R. uyekii were developed using an enriched partial genomic library. Polymorphisms at these loci were studied in 150 individuals collected from three populations...
2014: Genetics and Molecular Research: GMR
Yi Luo, Xiaojuan Cao, Yurong Zhu
Bitterling Tanakia limbata is a temperate freshwater fish, distributes in fast-flowing creeks in central and southern Japan. In this study, the complete mitochondrial genome of T. limbata is sequenced to be 16,565 bp in length, including 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, a control region and the origin of the light strand replication. The overall base composition of T. limbata in descending order is A 28.2%, C 27.5%, T 26.3%, and G 18.0%, with a slight A + T bias. The mitogenome sequence data may provide useful information to the population genetics analysis of T...
May 2016: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
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