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Endocrine-disrupting chemicals (EDCs) mimic the action of endogenous estrogen hormones; consequently, they can interfere with the endocrine systems of a variety of organisms. There is global concern regarding the potential impacts of EDCs on the aquatic environment. To evaluate the effects of EDCs on the estrogen-related receptors (ERR) of Chironomus, we(More)
Veterinary antibiotics may find their way into the aquatic environment through direct or indirect pathways due to their widespread use. Fenbendazole is a benzimidazole anthelmintic that is widely used in veterinary medicine. To evaluate the potential ecological risk of fenbendazole, we examined the molecular and biochemical responses of biomarker genes such(More)
Canine preaxial polydactyly (PPD) in the hind limb is a developmental trait that restores the first digit lost during canine evolution. Using a linkage analysis, we previously demonstrated that the affected gene in a Korean breed is located on canine chromosome 16. The candidate locus was further limited to a linkage disequilibrium (LD) block of <213 kb(More)
The objectives of this study were to determine levels of heavy metal in the feathers and blood of Black-tailed gulls (Larus crassirostris), to evaluate metallothionein (MT) mRNA level in Black-tailed gulls on three independent islets, and to examine the correlation between heavy metal concentrations and MT mRNA expression. Eleven heavy metals (Al, Cd, Mn,(More)
Increasing temperatures can be a significant stressor for aquatic organisms. Abalones, a type of large marine gastropods, are the most commercially important species in aquaculture for Asia. To evaluate the potential ecological risk posed by temperature stress, we measured biological responses such as survival rate, adhesion ability (falling rate), and foot(More)
The canine species, including wolf and jackal, have four digits on the hind limb. It was thought that an extra first digit on the hind limb, named dewclaw, was a hereditary defect. For genetically related canine pedigrees with 73 members with dewclaws, we carried out a genome-wide scan for linkage with microsatellites. With an assumption of autosomal(More)
Temperature is one of the most important environmental factors affecting the biological processes of aquatic species. To investigate the potential effects of temperature on the developmental processes of aquatic invertebrates, we analyzed biological and molecular transcriptional responses during Chironomus riparius development, including five stages(More)
Environmental stressors can induce changes in gene expression that can be useful as biomarkers. To identify potential biomarkers of water quality, we characterized full-length cDNA sequences of the serine-type endopeptidase (SP) gene from Chironomus riparius. Their expression was analyzed during different life-history stages and in response to treatment(More)
Di(2-ethylhexyl) phthalate, which is a ubiquitous environmental contaminant because of its extensive use as a plasticizer, is a potential nongenotoxic carcinogen. To assess the effects of DEHP exposure on the cytoskeleton of Chironomus, we characterized full-length cDNA sequences of the calponin gene from Chironomus riparius. The expression of the calponin(More)
Ribosomal protein genes are essential for cellular development. To examine the effects of ribosomal protein genes under various cellular stress conditions in chironomids, ribosomal protein S3 (RpS3) and S6 (RpS6) cDNA from Chironomus riparius were characterized and their expression was analyzed during development. A comparative and phylogenetic study among(More)