| transcriptome analysis reveals positive selection on the divergent between topmouth culter and zebrafish. | the topmouth culter (erythroculter ilishaeformis) is a predatory cyprinid fish that distributes widely in the east asia. here we report the liver transcriptome in this organism as a model of predatory fish. sequencing of 5 gb raw reads led to 27,741 unigenes and produced 11,131 annotatable genes. a total of 7093 (63.7%) genes were found to have putative functions by gene ontology analysis. importantly, a blast search revealed 4033 culter genes that were orthologous to the zebrafish. extracted fr ... | 2014 | 25267534 |
| [bioaccumulation and biomagnification of heavy metals in three gorges reservoir and effect of biological factors]. | three gorges reservoir (tgr) reached the maximum water level (175 m) of impoundment in oct. 2010. in order to reveal the potential influence of the greatest water-level impoundment on the heavy metal pollution in the typical waters of tgr, the content level of trace metals ( hg, cd and pb) in biota and potential biomagnification along the aquatic food chain were investigated in the main stem of tgr from july 2011 to august 2012, as well as the relationship between the trace metal concentrations ... | 2016 | 27078974 |
| identification, characterization of selenoprotein w and its mrna expression patterns in response to somatostatin 14, cysteamine hydrochloride, 17β-estradiol and a binary mixture of 17β-estradiol and cysteamine hydrochloride in topmouth culter (erythroculter ilishaeformis). | in this study, a selenoprotein w cdna was cloned from topmouth culter (erythroculter ilishaeformis), and it was designated as eiselw. the eiselw open reading frame was composed of 261 base pairs (bp), encoding 86-amino-acid protein. the 5' untranslated region (utr) consisted of 104 bp, and the 3'-utr was composed of 365 bp. a selenocysteine insertion sequence (secis) element was found in the 3'-utr of eiselw mrna. the secis element was classified as form ii because of a small additional apical l ... | 2017 | 27506211 |
| organization and variation analysis of 5s rdna in different ploidy-level hybrids of red crucian carp × topmouth culter. | through distant crossing, diploid, triploid and tetraploid hybrids of red crucian carp (carassius auratus red var., rcc♀, cyprininae, 2n = 100) × topmouth culter (erythroculter ilishaeformis bleeker, tc♂, cultrinae, 2n = 48) were successfully produced. diploid hybrids possessed 74 chromosomes with one set from rcc and one set from tc; triploid hybrids harbored 124 chromosomes with two sets from rcc and one set from tc; tetraploid hybrids had 148 chromosomes with two sets from rcc and two sets fr ... | 2012 | 22720007 |
| metal accumulation in fish from different zones of a large, shallow freshwater lake. | metal (cd, pb, cr, ni, mn, cu, and zn) concentrations in different fish species sampled from two distinct (phytoplankton- and macrophyte-dominated) lake zones of a large, shallow freshwater lake, taihu lake, were investigated. concentrations of most metals in muscle of the small-sized fish (protosalanx hyalocranius, pseudorasbora parva, and rhodeus ocellatus) were always significantly higher than those of the large-sized (carassius auratus, cyprinus carpio, and aristichthys nobilis) and carnivor ... | 2012 | 23009814 |
| [distribution and changes in species composition and abundance of ichthyoplankton in the yangtze estuary]. | based on four surveys of eggs and larvae in the yangtze estuary in 2005 (april and november) and 2006 (april and september), combined with the historical data of the wetland in 1990 (september) and 1991 (march), we analyzed seasonal changes in fish species composition and quantity of ichthyoplankton. thirty-six species of egg and larvae were collected and marine fish species were the highest represented ecological guild. average fish species and average abundance in spring were lower than in aut ... | 2012 | 22653852 |
| derivation of aquatic predicted no-effect concentration (pnec) for 2,4-dichlorophenol: comparing native species data with non-native species data. | 2,4-dichlorophenol (2,4-dcp) is known as an important chemical intermediate and an environmental endocrine disruptor. there is no paper dealing with the predicted no-effect concentration (pnec) of 2,4-dcp, mainly due to shortage of chronic and site-specific toxicity data. in the present study, toxicity data was obtained from the tests using six chinese native aquatic species. the hc(5) (hazardous concentration for 5% of species) was derived based on the constructed species sensitivity distributi ... | 2011 | 21543105 |
| distribution and bioaccumulation of heavy metals in aquatic organisms of different trophic levels and potential health risk assessment from taihu lake, china. | aquatic organisms of different trophic levels were taken from taihu lake. heavy metals (cu, zn, cr, ni, cd, pb) were measured in phytoplankton, zooplankton, in two species of zoobenthos, and in eight fish species, as well as in the water column and bottom sediments. results showed that the concentration of cu and zn for all organisms was much higher than for other metals, and cd was the lowest in all species. generally, heavy metal concentrations in phytoplankton were higher than in zooplankton. ... | 2012 | 22633085 |
| stereospecific analysis of triacylglycerol and phospholipid fractions of five wild freshwater fish from poyang lake. | the fatty acids (fa) compositions and positional distributions in triacylglycerols (tag) and phospholipids (pl) of five wild freshwater fish (squaliobarbus curriculus, erythroculter ilishaeformis, pseudobagrus fulvidraco, bostrichthys sinensis, and siniperca kneri garman) from poyang lake (the largest freshwater lake of china) were studied. for tag, s. kneri german had the highest content (13.59%) of n - 3 polyunsaturated fatty acids (pufa) and e. ilishaeformis had the lowest ratio of (n - 6)/(n ... | 2012 | 22242597 |
| [cytogenetic and molecular genetic analysis of gynogenesis in megalobrama amblycephala using spermatozoa of erythroculter ilishaeformis]. | in the present study we used both cytogenetics (measurement of dna content, detection of chromosome number, observation of gonadal development)and molecular genetics(microsatellite analysis)to analyze the biological characteristics of gynogenetic m. amblycephala, which werecreatedthrough gynogenesis induced via uv-irradiated e. ilishaeformis spermatozoa to fertilize m. amblycephala eggs. the maternal genome was duplicated by cold shock in 0~4℃ cold water to form a population of m. amblycephala w ... | 2013 | 24115660 |