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| 1 | Chromosomal localization of the major ribosomal RNA genes in scallop Chlamys farreri显示文摘The chromosomes of Chlamys farreri were analyzed by means of silver staining and fluorescence in situ hybridization (FISH) with 18S—28S rDNA probe. Probe was made by PCR amplification of a DNA fragment containing internal transcribed spacers ITS1 between 18S and 5.8S ribosomal RNA gene, ITS2 between 5.8S and 28S ribosomal RNA gene and 5.8S rRNA gene, and labeled by PCR incorporation of bio-16-dUTP. FISH signals were located on the short arm of subtelocentric chromosome 10. After silver-staining, nucleolus organizer regions (NORs) could be observed on the telomere of the short arm of chromosome 10. However, one metaphase spread displayed an additional silver spot on the short arm of subtelocentric chromosome 12. | HUANG Xiaoting BAO Zhenmin BI Ke HU Jingjie ZHANG Can ZHANG Quanqi HU Xiaoli | 2006 | Acta Oceanologica Sinica2006，25，3： | 10 |
| 2 | Assessing genetic diversity of wild populations of Japanese flounderusing AFLP markers显示文摘Amplified fragment length polymorphism (AFLP) analysis was used to evaluate the genetic diversity of four wild geographical populations of Japanese flounder (Paralichthys olivaceus). A total of 775 loci (58.32% of which was polymorphic) in the range between 100 and 1 300 base pairs were detected from 110 individuals using seven primer combinations. The percentage of polymorphic loci detected by single primer combination for each population was calculated, ranging from 19.59% to 53.33%. Genetic similarities within and among the populations were calculated from the binary matrices of presence-absence. Phylogenetic tree of four populations was constructed by using the UPGMA method using PHYLIP Version 3.5. According to intrapopulation genetic similarities, CW population displayed the highest genetic diversity value and KY population had the lowest genetic diversity value. The distance between CW and CF populations was the farthest, which was possibly resulted from the farthest distance of Weihai of Shandong and Fujian of China compared with the geographical distance between other locations of populations. The subpopulation differentiation value (G_ st ) is 0.356 5, showing a certain extent of differentiation among the four geographical populations. AFLP technology was confirmed to be an effective tool to assess within-and among-population genetic diversity of Japanese flounder. The present survey provided significant insights for research in the Japanese flounder breeding program. | XU Xiaofei ZHANG Quanqi WANG Zhigang QI Jie ZHANG Zhifeng BAO Zhenmin Heisuke Nakagawa | 2006 | Acta Oceanologica Sinica2006，25，3： | 7 |
| 3 | Analysis of Genetic Diversity and Differentiation of Seven Stocks of Litopenaeus vannamei Using Microsatellite Markers显示文摘Seven microsatellite markers were used to evaluate the genetic diversity and differentiation of seven stocks of Litopenaeus vannamei, which were introduced from Central and South America to China. All seven microsatellite loci were polymorphic, with polymorphism information content(PIC) values ranging from 0.593 to 0.952. Totally 92 alleles were identified, and the number of alleles(Na) and effective alleles(Ne) varied between 4 and 21 and 2.7 and 14.6, respectively. Observed heterozygosity(Ho) values were lower than the expected heterozygosity(He) values(0.526–0.754), which indicated that the seven stocks possessed a rich genetic diversity. Thirty-seven tests were detected for reasonable significant deviation from Hardy-Weinberg equilibrium. Fis values were positive at five loci, suggesting that there was a relatively high degree of inbreeding within stocks. Pairwise Fst values ranged from 0.0225 to 0.151, and most of the stock pairs were moderately differentiated. Genetic distance and cluster analysis using UPGMA revealed a close genetic relationship of L. vannamei between Pop2 and Pop3. AMOVA indicated that the genetic variation among stocks(11.3%) was much lower than that within stocks(88.7%). Although the seven stocks had a certain degree of genetic differentiation and a rich genetic diversity, there is an increasing risk of decreased performance due to inbreeding in subsequent generations. | ZHANG Kai WANG Weiji LI Weiya ZHANG Quanqi KONG Jie | 2014 | Journal of Ocean University of China2014，13，4： | 7 |
| 4 | Identification of differential genes in the ovary relative to the testis and their expression patterns in half-smooth tongue sole (Cynoglossus semilaevis)显示文摘Half-smooth tongue sole (Cynoglossus semilaevis) is a rare marine flatfish whose mature ovary and testis greatly differ in volume and weight. The length and weight of mature females are over twice greater than those of mature males. To obtain sufficient information on gonad differentiation and the relationship between gonad development and growth in the fish, we compared gene expression between the ovary and testis using suppression subtractive hybridization (SSH). Testis cDNAs are subtracted from ovary cDNAs and are used to es- tablish an ovary testis-subtracted cDNA library. A total of 41 nonredundant clones are identified, including 20 known cDNAs, 9 unchar-acterized cDNAs (EST clones), and 12 novel sequences. For selected genes such as ZPC, RacGAP, survivin, aquaporin, CPEB, O5, O15, and O18, gene expression patterns are analyzed by reverse transcriptase-polymerase chain reaction (RT-PCR). The results confirm that these genes are only expressed in the ovary and not in the testis, or at higher levels in the ovary than in the testis. At the same time, expressions of certain genes such as ZPC, survivin, aquaporin, CPEB, and O15 are demonstrated to possess sexual dimorphism in the kidney or muscle, and spleen. The results suggest that these genes could play key roles not only in the ovary but in other female tissues as well. | Yeying Sun Quanqi Zhang Jie Qi Yanjie Chen Qiwang Zhong Chunmei Li | 2010 | Journal of Genetics and Genomics2010，37，2： | 3 |
| 5 | Shape and position of Earth's bow shock near-lunar orbit based on ARTEMIS data显示文摘Earth's bow shock is the result of interaction between the supersonic solar wind and Earth's magnetopause. However, data limitations mean the model of the shape and position of the bow shock are based largely on near-Earth satellite data. The model of the bow shock in the distant magnetotail and other factors that affect the bow shock, such as the interplanetary magnetic field(IMF) B_y, remain unclear. Here, based on the bow shock crossings of ARTEMIS from January 2011 to January 2015, new coefficients of the tail-flaring angle a of the Chao model(one of the most accurate models currently available) were obtained by fitting data from the middle-distance magnetotail(near-lunar orbit, geocentric distance -20R_E>X>-50R_E). In addition, the effects of the IMF B_y on the flaring angle a were analyzed. Our results showed that:(1) the new fitting coefficients of the Chao model in the middle-distance magnetotail are more consistent with the observed results;(2) the tail-flaring angle a of the bow shock increases as the absolute value of the IMF B_y increases. Moreover, positive IMF B_y has a greater effect than negative IMF B_y on flaring angle. These results provide a reference for bow shock modeling that includes the IMF B_y. | LIU Ji SHI QuanQi TIAN AnMin Lü JianYong WU Hao WANG Ming FU SuiYan YANG YuChen ZONG QiuGang ZHANG Jiang FENG YongYong PU ZuYin | 2016 | Science China Earth Sciences2016，59，8： | 3 |
| 6 | Weighted Correlation Network Analysis(WGCNA) of Japanese Flounder(Paralichthys olivaceus) Embryo Transcriptome Provides Crucial Gene Sets for Understanding Haploid Syndrome and Rescue by Diploidization显示文摘Artificial gynogenesis is of great research value in fish genetics and breeding technology. However, existing studies did not explain the mechanism of some interesting phenomena. Severe developmental defects in gynogenetic haploids can lead to death during hatching. After diploidization of chromosomes, gynogenetic diploids may dispense from the remarkable malformation and restore the viability, although the development time is longer and the survival rate is lower compared with normal diploids. The aim of this study was to reveal key mechanism in haploid syndrome of Japanese flounder, a commercially important marine teleost in East Asia. We measured genome-scale gene expression of flounder haploid, gynogenetic diploid and normal diploid embryos using RNA-Seq, constructed a module-centric co-expression network based on weighted correlation network analysis(WGCNA) and analyzed the biological functions of correlated modules. Module gene content analysis revealed that the formation of gynogenetic haploids was closely related to the abnormality of plasma proteins, and the up-regulation of p53 signaling pathway might rescue gynogenetic embryos from haploid syndrome via regulating cell cycle arrest, apoptosis and DNA repair. Moreover, normal diploid has more robust nervous system. This work provides novel insights into molecular mechanisms in haploid syndrome and the rescue process by gynogenetic diploidization. | ZHAO Haitao DU Xinxin ZHANG Kai LIU Yuezhong WANG Yujue LIU Jinxiang HE Yan WANG Xubo ZHANG Quanqi | 2018 | Journal of Ocean University of China2018，17，6： | 3 |
| 7 | Sex Determination Mechanisms in Fish显示文摘In fish,sex determination(SD) system shows high variation. The SD mechanisms include environmental and genetic regulation. The research on SD system and related genes in intensively studied fish species was reviewed. Although some genes have been described as sex-related,only DMRT1bY can be considered as a master sex determination gene and none of them has been utilized in aquaculture. The variation of fish SD system,the importance of sex-related genes in evolution research and the relations between environmental factors and sex-related genes were also discussed. The fish sex determination mechanism remains largely unknown. Further research needs to be done considering the significance of fish SD studies in basic and applied aspects. | ZHANG Quanqi SUN Xiaohua QI Jie WANG Zhigang WANG Xinglian WANG Xubo ZHAI Teng | 2009 | Journal of Ocean University of China2009，8，2： | 2 |
| 8 | Analysis of New Microsatellite Markers Developed From Reported Sequences of Japanese Flounder Paralichthys olivaceus显示文摘The expressed sequence tags (ESTs) of Japanese flounder, Paralichthys olivaceus, were selected from GenBank to iden-tify simple sequence repeats (SSRs) or microsatellites.A bioinformatic analysis of 11111 ESTs identified 751 SSR-containing ESTs, including 440 dinucleotide, 254 trinucleotide, 53 tetranucleotide, 95 pentanucleotide and 40 hexanucleotide microsatellites respec-tively.The CA/TG and GA/TC repeats were the most abundant microsatellites.AT-rich types were predominant among trinucleotide and tetranucleotide microsatellites.PCR primers were designed to amplify 10 identified microsatellites loci.The PCR results from eight pairs of primers showed polymorphisms in wild populations.In 30 wild individuals, the mean observed and expected het-erozygosities of these 8 polymorphic SSRs were 0.71 and 0.83 respectively and the average PIC value was 0.8.These microsatellite markers should prove to be a useful addition to the microsatellite markers that are now available for this species. | YU Haiyang JIANG Liming CHEN Wei WANG Xubo WANG Zhigang ZHANG Quanqi | 2010 | Journal of Ocean University of China2010，9，4： | 2 |
| 9 | Tissue Expression and Stock Variation of Isozymes of Stone Flounder(Kareius bicoloratus)显示文摘Tissue expression and stock variation of isozymes of stone flounder (Kareius bicoloratus) were analyzed with horizontal starch gel electrophoresis. For the fourteen enzymes assayed, 31 loci were recorded. The results indicated that all the isozymes ex- amined were obviously tissue-specific. The expressions of SOD*, GDH*, G3PDH-2* and ADH-2* were detected only in liver, SDH-1*, MDH-1* and ADH-1* only in muscle, and LDH-B* and LDH-C* only in eyes. In comparison, MDH-2*, GPI-3* and SDH-2* were detected in all tissues examined. Other loci examined were detected in a variety of tissues. Muscle and liver were se- lected to detect the isozyme variation of the two geographic stocks of Qingdao and Weihai, Shandong Province, China. The percent- ages of polymorphic loci (P0.99) were 29.17% and 25.00%, the observed heterozygosities (H0) were 0.028 ± 0.014 and 0.040 ± 0.019, and the expected heterozygosities (He) were 0.039 ± 0.017 and 0.052 ± 0.022 in Qingdao and Weihai stock, respectively. The coeffi- cient of gene differentiation (Fst) and genetic distance (D) between the two stocks was 0.012 and 0.0011, respectively, indicating that the genetic differentiation is low between them. Compared with other species of Pleuronectiformes, both the percentage of polymor- phic loci and the mean heterozygosity of K. bicoloratus were at a middle level. | XU Jianpeng ZHANG Quanqi QI Jie WANG Zhigang | 2007 | Journal of Ocean University of China2007，6，2： | 2 |
| 10 | Comparative Studies on the Molecular Genetic Diversities among Haliotis discus hannai, H. discus discus and Their Hybrids显示文摘The hybrid (H. discus hannai♀× H. discus discus♂) shows strong heterosis in both growth and survival rates during aquaculture. In order to better understand the genetic basis of heterosis, AFLP markers are adopted to compare the genetic diversities of the two parents and their hybrids. Six primer combinations reveal 552 loci, among which 88 loci show significant difference between the two parent populations (P<0.01). Analysis of molecular variance (AMOVA) indicates the genetic variance between them is significantly different (P<0.001). Thus there should be genetic basis of heterosis for their hybrids. In contrast to parents, more loci with lower frequency are amplified in hybrids than those in parents, whereas the loci with 0% and 100% frequency are less in hybrids than those in parents. Moreover, the genetic diversities of hybrids increase since the similarity indexes are lower and heterozygosities are higher in hybrids than those in parents. In addition, the genetic distances between reciprocal F1s and H. discus discus are both smaller than those between reciprocal F1s H. discus hannai. | 万俊芬 BAO Zhenmin Zhang Quanqi Wang Xiaolong | 2004 | High Technology Letters2004，10，3： | 2 |
| 11 | A Microsatellite Genetic Linkage Map of Black Rockfish(Sebastes schlegeli)显示文摘Ovoviviparous black rockfish(Sebastes schlegeli) is an important marine fish species for aquaculture and fisheries in China. Genetic information of this species is scarce because of the lack of microsatellite markers. In this study, a large number of microsatellite markers of black rockfish were isolated by constructing microsatellite-enriched libraries. Female- and male-specific genetic linkage maps were constructed using 435 microsatellite markers genotyped in a full-sib family of the fish species. The female linkage map contained 140 microsatellite markers, in which 23 linkage groups had a total genetic length of 1334.1 c M and average inter-marker space of 13.3 c M. The male linkage map contained 156 microsatellite markers, in which 25 linkage groups had a total genetic length of 1359.6 c M and average inter-marker distance of 12.4 c M. The genome coverage of the female and male linkage maps was 68.6% and 69.3%, respectively. The female-to-male ratio of the recombination rate was approximately 1.07:1 in adjacent microsatellite markers. This paper presents the first genetic linkage map of microsatellites in black rockfish. The collection of polymorphic markers and sex-specific linkage maps of black rockfish could be useful for further investigations on parental assignment, population genetics, quantitative trait loci mapping, and marker-assisted selection in related breeding programs. | CHU Guannan JIANG Liming HE Yan YU Haiyang WANG Zhigang JIANG Haibin ZHANG Quanqi | 2014 | Journal of Ocean University of China2014，13，6： | 2 |
| 12 | Genetic analyses of the progeny of triploid gynogens induced from unreduced eggs of triploid diploid female x tetraploid male/loach 显示文摘 | Shuichi Momotani Kagayaki Morishima Quanqi Zhang | 2002 | Aquaculture2002，204，： | 1 |
| 13 | The preparation of semehromosome-specific painting probes and construction of sex chromosome DNA library in half-smooth tongue sole (Cynoglossus semilaevis) 显示文摘 | Wang Xubo Zhang Quanqi Ren Jian | 2009 | Aquaculture2009，297，： | 1 |
| 14 | Full-length sequence and expression analysis of a myeloid differentiation factor88(MyD88)in half-smooth tongue sole Cynoglossus semilaevis显示文摘 | Yan Yu Qiwang Zhong Quanqi Zhang | 2009 | International Journal of Immunogenetics2009，36，3： | 1 |
| 15 | Intragenomic variability and pseudogenes of ribosomal DNA in Stone flounder Kareius bicoloratus 显示文摘 | Xu Jianpeng Zhang Quanqi Xu Xiaofei | 2009 | Molecular Phylogenetics and Evolution2009，52，1： | 1 |
| 16 | Propagation properties of foreshock cavitons: Cluster observations显示文摘Foreshock cavitons are transient phenomena observed in the terrestrial foreshock region.They are characterized by a simultaneous depression of magnetic field magnitude and plasma density,which are bounded with enhancements of these two parameters and surrounded by ultralow frequency(ULF)waves.Previous studies focused on the interplanetary magnetic field(IMF)conditions,solar wind(SW)conditions,and the growth of the foreshock waves related to the generation of foreshock cavitons.Previously,a multipoint spacecraft analysis method using Cluster data was applied to analyze only two foreshock cavitons,and this method did not consider uncertainties.In this study,multipoint spacecraft analysis methods,including the timing method,the minimum directional derivative(MDD)method,and the spatiotemporal difference(STD)method are applied to determine the velocity in both spacecraft and solar wind frames.The propagation properties show good agreement with previous results from simulations and observations that most cavitons move sunward in the solar wind frame,with the velocities larger than the Alfvén speed.The propagation properties of foreshock cavitons support the formation mechanism of cavitons in previous simulations,which suggested that cavitons are formed due to the nonlinear evolution of compressive ULF waves.We find that there is clear decreasing trend between the size of cavitons and their velocity in the solar wind frame.In addition,the timing method considering errors has been applied to study the evolution properties by comparing the velocities with errors of the leading and trailing edges,and we identify three stable cavitons and one contracting caviton,which has not been studied before.Most cavitons should remain stable when they travel toward the Earth’s bow shock.The relationship between the size of foreshock cavitons and their distance from the bow shock is also discussed. | WANG MengMeng YAO ShuTao SHI QuanQi ZHANG Hui TIAN AnMin DEGELING Alexander William ZHANG Shuai GUO RuiLong SUN WeiJie LIU Ji BAI ShiChen SHEN XiaoChen ZHU XiaoQiong FU SuiYan PU ZuYin | 2020 | Science China(Technological Sciences)2020，63，1： | 1 |
| 17 | Transcriptome-Wide Identification and Validation of Reference Genes in Black Rockfish(Sebastes schlegelii)显示文摘The quantitative real-time reverse transcription PCR(qRT-PCR)is a widely used technique to analyze gene expression levels.Selecting a suitable reference gene is a crucial step to obtain an accurate result in qRT-PCR.However,most previous studies on fishes adopted reference genes that were commonly used in mammals without validation.In this study,we utilized 89 transcrip-tome datasets covering early developmental stages and different adult tissues,and carried out transcriptome-wide identification and validation of reference genes in Sebastes schlegelii.Finally,121 candidate reference genes were identified based on four criteria.Eight candidates(METAP2,BTF3L4,EIF5A1,TCTP,UBC,PAIRB,RAB10,and DLD)and four commonly used reference genes in mam-mals(TUBA,ACTB,GAPDH,RPL17)were selected for validation via qRT-PCR and four statistical analysis methods(delta-Ct,Best-Keeper,geNorm,and NormFinder).The results indicated that when the black rockfish are cultured in a general condition,the eight candidate reference genes are more stable than traditional reference genes in mammals,and RAB10,EIF5A1,PAIRB and BTF3L4 are the best reference genes in rockfish.This is the first study to conduct transcriptome-wide identification and validation of reference genes for quantitative RT-PCR in the black rockfish,and lay an important foundation for gene expression analysis in teleost. | JIN Chaofan SONG Weihao WANG Mengya QI Jie ZHANG Quanqi HE Yan | 2021 | Journal of Ocean University of China2021，20，3： | 1 |
| 18 | Extensive karyotype variation in somatic and meiotic cells of the loach migurnus mlguillicaudatus ( Pisces:Cobitidae)显示文摘 | ZHANG Quanqi ARAI Katsutoshi | 2003 | Folia Zool2003，52，4： | 1 |
| 19 | Large-Scale Screening of Growth-Related Variants in Chinese Tongue Sole(Cynoglossus semilaevis)显示文摘Growth is the most valuable economic trait for improving aquaculture fish species,since fast growth can reduce labor cost and make more economic benefits.However,the knowledge about how many and which genes are related to the growth of Chi-nese tongue sole is limited.High-throughput sequencing screening of variants is a fast,economical and accurate assay to identify genes related to growth in crops,livestock and other aquaculture products.In the present study,genome-wide resequencing of 30 female Chinese tongue sole individuals from large and small groups to screen growth trait-related variations(SNPs,InDels)was carried out.In total,6545735 SNPs and 1016745 InDels were detected,while 31 genes related to growth traits were identified.Their functions were mainly involved in muscle architecture,post-embryonic development,neurosensory development and hormone regulation.Fur-thermore,18 of the 31 genes related to growth trait are located on W chromosome,indicating that W chromosome plays an important role in regulating the body size of female tongue soles.The markers and genes identified in our study can be applied to selective breeding of tongue sole and thus will promote the aquaculture industry and increase economic efficiency. | SONG Weihao ZHU He WANG Yujue ZHANG Kai ZHANG Quanqi HE Yan | 2021 | Journal of Ocean University of China2021，20，3： | 1 |
| 20 | Electrochemical performance of LiVPO4F/C composite cathode prepared through amorphous vanadium phosphorus oxide intermediate显示文摘 | Xiaochang Qiao Jiandong Yang Yaobin Wang Quanqi Chen Tingting Zhang Li Liu Xianyou Wang | 2012 | Journal of Solid State Electrochemistry2012，，3： | 1 |
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