Results 101 to 110 of about 7,203 (204)
Domain‐Shuffling in the Evolution of Cyclostomes and Gnathostomes
We addressed the potential roles of domain‐shuffling origin genes (DSO‐Gs) in the evolution of early vertebrates. Through comparative genome analysis of 22 metazoans, including four cyclostomes, we identified DSO‐Gs before and after the divergence of cyclostomes and gnathostomes, and suggest domain shuffling as a key mechanism in vertebrate early ...
Hirofumi Kariyayama +3 more
wiley +1 more source
Rapid molecular authentication of cultured Takifugu rubripes using structural genomic variations
Takifugu rubripes, a pufferfish species of considerable commercial importance in East Asian cuisine, is widely cultured under controlled aquaculture conditions to produce tetrodotoxin (TTX)-free products. Accurate discrimination between cultured and wild
Kun Hee Kim +3 more
doaj +1 more source
Although pufferfish of the family Tetraodontidae contain high levels of tetrodotoxin (TTX) mainly in the liver, some species of pufferfish, boxfish of the family Ostraciidae, and porcupinefish of the family Diodontidae do not.
Yuji Nagashima +6 more
doaj +1 more source
Physikalische Kartierung von Medaka (Oryzias latipes) [PDF]
Title Page and Index Zusammenfassung and Summary Introduction Material and Methods Results Discussion References and List of AbbreviationsSummary Medaka, Oryzias latipes, is a small, egg-laying fresh water fish native to Asia that is found ...
Zadeh Khorasani, Maryam
core +1 more source
Tetrodotoxin (TTX) was intramuscularly administered to artificially hybridized specimens of the pufferfish Takifugu rubripes and Takifugu niphobles to investigate toxin accumulation in hybrids, and TTX transfer/accumulation profiles in the pufferfish body.
Junjie, Wang +8 more
openaire +2 more sources
The Research Advances in Distant Hybridization and Gynogenesis in Fish
ABSTRACT Distant hybridization and gynogenesis are two prevalent breeding techniques for fishes. Drawing from the research achievements of our team and the existing literature, we summarize the reproductive traits and genetic features of fishes derived from distant hybridizations and gynogenesis, and we deduce the fundamental mechanisms of these two ...
Qizhi Liu +15 more
wiley +1 more source
为了研究重要功能基因在多倍体基因组中的演化情况,通过分子克隆的方法从四倍体大鳞结鱼(Tordouronensis)中获得13条Sox基因序列,分别为SoxB,SoxC和SoxE组成员.对大鳞结鱼Sox基因系统进化分析的结果支持鱼类特异的基因组重复的假说,同时表明,基因Sox19可能为真骨鱼特有的Sox基因家族成员.序列分析显示,与其他物种相比大鳞结鱼中Sox基因的碱基替代,绝大多数为同义替代.结果表明,所得到的Sox基因序列均受到净化选择,同时由多倍化所造成的重复基因对Sox4a ...
何舜平 +3 more
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Identification of an osteocalcin isoform in fish with a large acidic prodomain [PDF]
Osteocalcin is a small, secreted bone protein whose gene consists of four exons. In the course of analyzing the structure of fish osteocalcin genes, we recently found that the spotted green pufferfish has two possible exon 2 structures, one of 15 bp and ...
Amores +30 more
core +1 more source
Heterobothrium Infection of Cultured Tiger Puffer, Takifugu rubripes-Infection Experiments.
One-year old tiger puffer, Takifugu rubripes, were infected with the monogenean, Heterobothrium okamotoi, by exposing oncomiracidia of the parasite. Maximal intensity of infection on the gills and branchial cavity wall was 79 and 76, respectively. Immature parasites were found on the gill filaments of the host for the first 5-7 weeks until they grew up
Kazuo Ogawa, Kiyoshi Inouye
openaire +2 more sources
Effect of zinc and manganese supplementation to tricalcium phosphate rich diet for tiger puffer (Takifugu rubripes) [PDF]
Effects of zinc (Zn) and manganese (Mn) supplementation to a tricalcium phosphate (TCP) rich diet for tiger puffer have been investigated. A TCP supplement to the diet decreased the growth of fish compared to the control diet with a Ca supplementation ...
Fumichi, Masayuki +2 more
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