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Genome and population evolution and environmental adaptation of Glyptosternon maculatum on the Qinghai-Tibet Plateau

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Zoological Research 2021年第4期42卷 502-513页

作者： Shi-Jun Xiao Zen-Bo Mou Rui-Bin Yang Ding-Ding Fan Jia-Qi Liu Yu Zou Shi-Lin Zhu Ming Zou Chao-Wei Zhou Hai-Ping Liu Institute of fisheries Science Tibet Academy of Agricultural and Animal Husbandry SciencesLhasaTibet 810000China Department of Computer Science Wuhan University of TechnologyWuhanHubei 430070China College of fisheries Huazhong Agricultural UniversityWuhanHubei 430070China Key laboratory of freshwater Fish Reproduction and Development(Ministry of Education) College of FisheriesSouthwest UniversityChongqing 402400China College of Plant Protection Jilin Agriculture UniversityChangchunJilin 130118China Jiaxing Key laboratory for New germplasm Breeding of Economic Mycology JiaxingZhejiang 314000China

Persistent uplift means the Qinghai-Tibet Plateau(QTP)is an ideal natural laboratory to investigate genome evolution and adaptation within highland ***,how paleogeographic and paleoclimatic events influence the genome and population of endemic fish species remains *** maculatum is an ancient endemic fish found on the QTP and the only critically endangered species in the Sisoridae ***,we found that major transposons in the *** genome showed episodic bursts,consistent with contemporaneous geological and climatic events during the QTP ***,histone genes showed significant expansion in the *** genome,which may be mediated by long interspersed nuclear elements(LINE)repetitive element *** analysis showed that ancestral *** populations experienced two significant depressions 2.6 million years ago(Mya)and 10000 years ago,exhibiting excellent synchronization with Quaternary glaciation and the Younger Dryas,***,we propose that paleogeography and paleoclimate were dominating driving forces for population dynamics in endemic fish on the *** movements and temperature fluctuation likely destroyed the habitat and disrupted the drainage connectivity among *** factors may have caused severe bottlenecks and limited migration among ancestral *** populations,resulting in the low genetic diversity and endangered status of the species today.

关键词： Qinghai-Tibet Plateau(QTP) Glyptosternon maculatum Genome evolution Population High-altitude adaptation

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Transcriptional profiles in zebrafish atp7a mutants and responses of atp7a mutants to Cu stress

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Water Biology and Security 2023年第3期2卷 87-97页

作者： You Wu Wenye Liu Lingya Li Zhipeng Tai Jing-Xia Liu College of fisheries Key Laboratory of Freshwater Animal BreedingMinistry of AgricultureHuazhong Agricultural UniversityWuhan430070China

As a copper(Cu)transport ATPase,ATP7A plays an important role in maintaining Cu homeostasis in the body,but the developmental and physiological roles of atp7a in zebrafish embryogenesis are rarely *** this study,normal morphological phenotypes of atp7a^(−/−)homozygous zebrafish were observed at both embryonic and adult stages,however,atp7a^(−/−)larvae exhibited delayed touch response and obvious transcriptome *** with the WT(wild type),differentially expressed genes(DEGs)in atp7a^(−/−)larvae showed the enrichment in gene ontology(GO)terms related to several processes including ATPase activity,oxidoreductase activity,active transmembrane transporter activity,ion binding,and the citrate ***,decreases in both ATP content and Na+/K+-ATPase activity in atp7a^(−/−)embryos and larvae were unveiled.57 overlapping DEGs were found both in WT stressed with Cu and in WT mutated with atp7a,and GO term analysis indicated the enrichment in the genes related to neurexin family protein binding and neuronal cell-cell ***,42 overlapping DEGs in Cu stressed WT and Cu stressed atp7a^(−/−)were *** term analysis showed an enrichment in the genes related to heme binding,implying that Cu was independent of the integral function of atp7a to affect heme *** addition,genes involved in the negative regulation of angiogenesis were down-regulated in atp7a^(−/−)mutants with and without Cu stress,which failed to occur in WT,implying that the integral function of atp7a is required for maintaining the normal expression of angiogenesis *** integrative data in this study demonstrated that atp7a is required for ion transport and angiogenesis,and for Cu-induced neurexin family protein binding defects,rather than for Cu-induced heme binding defects,during zebraﬁsh *** findings provide possible clues for human diseases with ATP7A dysfunction and imbalanced Cu homeostasis.

关键词： Angiogenesis ATP7A Cu stress Heme binding Ion transport Neurexin family protein binding

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Zebrafish ELL-associated factors Eaf1/2 modulate erythropoiesis via regulating gata1a expression and WNT signaling to facilitate hypoxia tolerance

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Cell Regeneration 2023年第1期12卷 295-312页

作者： WenYe Liu ShuHui Lin LingYa Li ZhiPeng Tai Jing-Xia Liu College of fisheries Key Laboratory of Freshwater Animal BreedingMinistry of AgricultureHuazhong Agricultural University430070 WuhanChina

EAF1 and EAF2,the eleven-nineteen lysine-rich leukemia(ELL)-associated factors which can assemble to the super elongation complex(AFF1/4,AF9/ENL,ELL,and P-TEFb),are reported to participate in RNA polymeraseⅡto actively regulate a variety of biological processes,including leukemia and embryogenesis,but whether and how EAF1/2 function in hematopoietic system related hypoxia tolerance during embryogenesis remains ***,we unveiled that deletion of EAF1/2(eaf1^(-/-)and eaf2^(-/-))caused reduction in hypoxia tolerance in zebrafish,leading to reduced erythropoiesis during hematopoietic ***,eaf1^(-/-)and eaf2^(-/-)mutants showed significant reduc-tion in the expression of key transcriptional regulators scl,lmo2,and gata1a in erythropoiesis at both 24 h post fertilization(hpf)and 72 hpf,with gata1a downregulated while scl and lmo2 upregulated at 14 ***,eaf1^(-/-)and eaf2^(-/-)mutants exhibited significant changes in the expression of epigenetic modified histones,with a significant increase in the binding enrichment of modified histone H3K27me3 in gata1a promoter rather than scl and lmo2 ***,eaf1^(-/-)and eaf2^(-/-)mutants exhibited a dynamic expression of canonical WNT/β-catenin signaling during erythropoiesis,with significant reduction in p-β-Catenin level and in the binding enrichment of both scl and lmo2 promoters with the WNT transcriptional factor TCF4 at 24 *** findings demonstrate an important role of Eaf1/2 in erythropoiesis in zebrafish and may have shed some light on regeneration medicine for anemia and related diseases and on molecular basis for fish economic or productive traits,such as growth,disease resistance,hypoxia tolerance,and so on.

关键词： EAF1/2 gata1a/scl/lmo2 Erythropoiesis H3K27me3 WNT/β-Catenin signaling TCF4

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Integrating water use systems and soil and water conservation measures into a hydrological model of an Iranian Wadi system

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Journal of Arid Land 2020年第4期12卷 545-560页

作者： Nariman MAHMOODI Jens KIESEL Paul D WAGNER Nicola FOHRER Department of Hydrology and Water resources Management Institute for Natural Resource ConservationKiel UniversityKiel 24118Germany Department of Ecosystem Research Leibniz-Institute of Freshwater Ecology and Inland Fisheries(IGB)Berlin 12489Germany

Water resources are precious in arid and semi-arid areas such as the Wadis of Iran. To sustainably manage these limited water resources, the residents of the Iranian Wadis have been traditionally using several water use systems(WUSs) which affect natural hydrological processes. In this study, WUSs and soil and water conservation measures(SWCMs) were integrated in a hydrological model of the Halilrood Basin in Iran. The Soil and Water Assessment Tool(SWAT) model was used to simulate the hydrological processes between 1993 and 2009 at daily time scale. To assess the importance of WUSs and SWCMs, we compared a model setup without WUSs and SWCMs(Default model) with a model setup with WUSs and SWCMs(WUS-SWCM model). When compared to the observed daily stream flow, the number of acceptable calibration runs as defined by the performance thresholds(Nash-Sutcliffe efficiency(NSE)≥0.68, –25%≤percent bias(PBIAS)≤25% and ratio of standard deviation(RSR)≤0.56) is 177 for the Default model and 1945 for the WUS-SWCM model. Also, the average Kling–Gupta efficiency(KGE) of acceptable calibration runs for the WUS-SWCM model is higher in both calibration and validation periods. When WUSs and SWCMs are implemented, surface runoff(between 30% and 99%) and water yield(between 0 and 18%) decreased in all sub-basins. Moreover, SWCMs lead to a higher contribution of groundwater flow to the channel and compensate for the extracted water by WUSs from the shallow aquifer. In summary, implementing WUSs and SWCMs in the SWAT model enhances model plausibility significantly.

关键词： SWAT model stream flow Wadis multi-metric framework water use systems soil and water conservation measures Halilrood Basin

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The dysregulated autophagy signaling is partially responsible fordefective podocyte development in wt1a mutant zebrafish

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Aquaculture and fisheries 2018年第3期3卷 99-105页

作者： Xuemei Zhang Qiaohong Lin Fan Ren Jin Zhang Farman Ullah Dawar Jie Mei Key laboratory of freshwater Animal Breeding Ministry of AgricultureCollege of FisheriesHuazhong Agricultural UniversityWuhan 430070China

Podocytes are essential elements of the glomerular filtration barrier and relevant to many kidney *** the molecular mechanism in podocyte development is still *** tumor protein(WT1)is an essential factor for urogenital system *** have two wt1 genes,naming wt1a and ***,we examined the roles of both wt1 genes in zebrafish embryonic development employing the CRISPR/Cas9 *** homozygous wt1a mutants displayed developmental malformations including pericardial edema,yolk sac edema and failure of glomerulus *** of wt1a function disrupted podocyte differentiation and inhibited expression of podocin and *** contrast,the homozygous wt1b mutants were phenotypically normal and had no severe phenotypes of nephrogenesis defects that were observed in wt1b morpholino knockdown ***,wt1a plays an essential role in kidney development,whereas wt1b might not be essential for kidney ***,from previous studies we knew that autophagy is involved in podocyte *** detecting the protein level of P62 and LC3A/B,we found the autophagy signal was greatly reduced in wt1a *** better understand the relationship between autophagy signal and wt1a function in podocyte development,rapamycin was added to activate autophagy in wt1a-mutated *** a result,podocyte injury was ameliorated in wt1a homozygous mutants by rapamycin *** conclusion,our findings not only confirmed the essential function of wt1a during kidney development,but also provided a possible way for treatment of diseases involving podocyte injury.

关键词： CRISPR/Cas9 development. inhibited

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Heterosis and combining ability evaluation for growth traits of blunt snout bream(Megalobrama amblycephala)when crossbreeding three strains

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Chinese Science Bulletin 2014年第9期59卷 857-864页

作者： Wei Luo Cong Zeng Shaokui Yi Nicholas Robinson Weimin Wang Zexia Gao College of fisheries Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education/Key Laboratory of Freshwater Animal Breeding Ministry of Agriculture Huazhong Agricultural University Nofima PO Box 5010 1432 s Norway Collaborative Innovation Center for Healthy freshwater Aquaculture of Hubei Province

The blunt snout bream(Megalobrama amblycephala)is a major aquaculture species in the Chinese freshwater polyculture *** this study,complete diallel crossing of three strains(i.e.,Liangzi[LZ],Poyang[PY]and Yuni[YN])was used to evaluate the combining ability and heterosis effect of intraspecific crossbreeding on the growth performance(i.e.,body weight,total length,body length,body height,and Fulton’s coefficient of condition).The offspring produced from the three strains were reared in a communal pond for 20 months,and nine microsatellites were used to assess their *** the749 offspring,708(94.53%)could be assigned directly to a single parental *** differences were observed in body weight(BW)among the different combinations,indicating that the combining ability of BW from each strain was significantly *** general combining ability(GCA)of BW from the sire was much higher than that from the *** GCA for the dam and sire of the LZ and YN were the largest and the smallest,*** special combining ability of YN$9 PY#was the largest,and YN$9 PY#showed significantly positive heterosis effects on all F1growth traits,except for Fulton’s condition coefficient(K)(P\0.05).In addition,significant positive linear correlations were found between the mean BW of corresponding progeny and the H E of the parental generation(y=600.7x-29.472,r=0.8651,P=0.0026),H O(y=1206.9x-518.14,r=0.7436,P=0.0216),and the polymorphism information content(y=1021.3x-331.31,r=0.8245,P=0.0063)as determined by a correlative *** findings obtained from the study will be important for future considerations of *** stock improvement programs.

关键词：杂种优势效应特殊配合力生长性状双列杂交团头鲂平均体重评价线性相关关系

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A STUDY ON THE AGE AND GROWTH OF LAKE ANCHOVY (COILIA ECTENES TAIHUENSIS YUEN ET TIN) IN TAIHU LAKE

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中国海洋湖沼学报(英文版) 1986年第3期4卷 227-238页

作者：孙雪兴 freshwater fisheries Research Center the Chinese Academy of Fishery Sciences

Scales of the Lake Anchovy in Taihu Lake are used as a basis for its age determination. Annual variation of scale edge growth rate (a) indicates that the annulus forms once a year, mainly in April-June. The relationship formula for boby length and scale diameter is L = 18.658 + 118.06R, that for body length and weight is W= 7.588×10-6 L2.8301; W - 5.584×10-6 L2.8781. The fish before age II have a higher relative growth rate in boby length and weight and a higher growth index. Growth is consistent with the growth equation by Von Bertalanffy. The turning point of the body weight growth curve is located between age II and III; the exact position is at W = 0.292W∞. Variation specificity of the growth course can be reflected by the growth rate and its acceleration curves. Time for capture of the fish should preferably be after age II, when they have reached a body length of 170 mm. That is one of the key measures to increase Lake Anchovy production in Taihu Lake.

关键词： length body exact capture acceleration sized reflected maturity starting turning

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Growth and energy budget of juvenile lenok Brachymystax lenok in relation to ration level

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Chinese Journal of Oceanology and Limnology 2015年第2期33卷 347-355页

作者：刘洋李钟杰张堂林苑晶牟振波刘家寿 State Key laboratory of freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of Sciences University of Chinese Academy of Sciences Heilongjiang River fisheries Research Institute Chinese Academy of Fishery Sciences

We evaluated the effect of ration level （RL） on the growth and energy budget of lenok Brachymystax lenok. Juvenile lenok （initial mean body weight 3.06±0.13 g） were fed for 21 d at five different ration levels： starvation, 2%, 3%, 4% bwd （body weight per day, based on initial mean values）, and apparent satiation. Feed consumption, apparent digestibility, and growth were directly measured. Specific growth rates in terms of wet weight, dry weight, protein, and energy increased logarithmically with an increase in ration levels. The relationship between specific growth rate in terms of wet weight （SGRw, %/d） and RL （%） was characterized by a decelerating curve： SGRw=- 1.417＋3.1661n（RL＋ 1）. The apparent digestibility coefficients of energy exhibited a decreasing pattern with increasing ration level, and there was a significant difference among different RLs. Body composition was significantly affected by ration size. The relationship between feed efficiency rate in terms of energy （FERe） and RL was： FERe=- 14.167＋23.793RL-3.367（RL）2, and the maximum FERe was observed at a 3.53% ration. The maintenance requirement for energy of juvenile lenok was 105.39 kJ BW （kg）-0.80/d, the utilization efficiency of DE for growth was 0.496. The energy budget equation at satiation was： 100IE=29.03FE＋5.78（ZE＋UE）＋39.56 HE＋25.63 RE, where IE is feed energy, FE is fecal energy, ZE＋UE is excretory energy, HE is heat production, and RE is recovered energy. Our results suggest that the most suitable feeding rate for juvenile lenok aquaculture for wet weight growth is 2.89% bwd, whereas for energy growth, the suggested rate is 3.53% bwd at this growth stage.

关键词： ration level growth energy budget Brachymystax lenok

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Longitudinal genetic analysis of growth-related traits in red swamp crayfish Procambarus clarkii (Girard)

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Journal of Oceanology and Limnology 2022年第2期40卷 775-785页

作者： Hui WANG Yi ZHANG Guoliang CHANG Nan WU Zhiqiang XU Jianqing TANG Jiangsu Engineering laboratory for Breeding of Special Aquatic Organisms Life Science School of Huaiyin Normal UniversityHuai’an 223300China Jiangsu freshwater fisheries Research Institute Nanjing 210017China

The red swamp crayfish,Procambarus clarkii,is an economically important species especially in *** exoskeleton places serious constraints on growth and culture *** growth is achieved through intermittent molting/*** longitudinal genetic dynamics for growth-related traits at different ecdysial points in *** has been unclear to *** this study,conditional genetic analysis was carried out for growth-related traits(body weight,body length,chela length,and cephalothorax length)based upon a mixed genetic model with conditional additive,dominance,and genotype by environment effects in ***.A complete diallel cross was made among three geographic populations of *** for the genetic mating *** of the conditional genetic analysis showed that from 4 th molt to 9 th molt the conditional additive variations were increased significantly whereas the conditional non-additive genetic variations(dominance and genotype by environment interaction)were decreased significantly for these growth-related *** indicated that lots of new expression of additive effect genes for body weight,body length,chela length,and cephalothorax length occurred during ontogeny,and environment played a signifi cant role in the expression of genes affecting these growth-related *** of the four traits was mainly affected by non-additive genetic effects in early developmental stage(prior to 4 th molt).The cumulative conditional additive variation for the growth-related traits from 4 th molt to 9 th molt accounted for a large majority of the total conditional additive variations from 2 nd molt to 9 th molt,indicating that this period was very important for the growth of this *** the conditional analysis method,dynamics of growth-related traits during an important ontogenetic phase of red swamp crayfish was *** results provide valuable insights into refining production of this species.

关键词： mating design conditional genetic analysis model Procambarus clarkii genetic effect conditional variance component longitudinal genetic analysis

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Unravelling habitat use of Coilia nasus from the Rokkaku River and Chikugo River estuaries of Japan by otolith strontium and calcium

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Acta Oceanologica Sinica 2018年第6期37卷 52-60页

作者： LIU Hongbo HANG Tao YANG Jian Key laboratory of Fishery Ecological Environment Assessment and Resource Conservation in Middle and Lower Reaches of the Yangtze River Freshwater Fisheries Research Center Chinese Academy of Fishery Sciences Wuxi 214081 China

The migratory history of the engraulid fish Coilia nasus in the Rokkaku and Chikugo River estuaries of the Ariake Sea, Japan was assessed using otolith strontium（Sr） X-ray intensity maps and strontium：calcium（Sr：Ca） ratio life history transects by an electron probe microanalyzer（EPMA）. The results showed that seven of the ten specimens from the Rokkaku River Estuary（LJC） and all 15 specimens collected in the Chikugo River Estuary（ZHC） had low Sr：Ca ratios（≤3） at the central otolith area, indicating their riverine origin and initial freshwater residence. After the first regime shift adjacent to natal regions, the Sr level mapping displayed a wide variety of color patterns, and the Sr：Ca ratios obtained by the line transect analysis could be divided into one to six significantly different phases indicative of gradual life history transition. The other three specimens from the Rokkaku River Estuary had high Sr：Ca ratios（3–6.7） at the central otolith area but showed alternating changes between low and high values outside the natal region, suggesting that estuarine-origin individuals occurred in the Rokkaku River Estuary. The two-dimensional maps of the Sr level and average of the otolith Sr：Ca ratios along the life-history transects could be used as effective tools for reconstruction of past habitat use of the tapertail anchovy in estuaries of the Ariake Sea, Japan.

关键词： Coilia nasus otolith microchemistry habitat use Rokkaku River Chikugo River

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