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| 1 | Climatology and seasonal variability of satellite-derived chlorophyll a around the Shandong Peninsula显示文摘The chlorophyll a(Chl a)is an important indicator of marine ecosystems.The spatiotemporal variation of the Chl a greatly aff ects the mariculture and marine ranching in coastal waters of the Shandong Peninsula.In the current study,the climatology and seasonal variability of surface Chl-a concentration around the Shandong Peninsula are investigated based on 16 years(December 2002-November 2018)of satellite observations.The results indicate that the annual mean Chl-a concentration is greater in the Bohai Sea than in the Yellow Sea and decreases from coastal waters to off shore waters.The highest Chl-a concentrations are found in Laizhou Bay(4.2-8.0 mg/m^(3)),Haizhou Bay(4.2-5.9 mg/m^(3))and the northeast coast of the Shandong Peninsula(4.4-5.0 mg/m^(3)),resulting from the combined eff ects of the intense riverine input and long residence time caused by the concave shape of the coastline.The seasonal Chl-a concentration shows a significant spatial variation.The Chl-a concentrations in these three subregions generally exhibit an annual maximum in August/September,due to the combined eff ects of sea surface temperature,river discharge and sea surface wind.In the southeast coast region,however,the Chl-a concentration is lowest throughout the year and reaches a maximum in February with a minimum in July,forced by the seasonal evolution of the Yellow Sea Cold Water and monsoon winds.The interannual Chl-a concentration trends vary among regions and seasons.There are significant increasing trends over a large area around Haizhou Bay from winter to summer,which are mainly caused by the rising sea surface temperature and eutrophication.In other coastal areas,the Chl-a concentration shows decreasing trends,which are clearest in summer and induced by the weakening land rainfall.This study highlights the differences in the Chl-a dynamics among regions around the Shandong Peninsula and is helpful for further studies of coupled physical-ecological-human interactions at multiple scales. | Xiukai SONG Yanzhen GU Fangguo ZHAI Peiliang LI Pengxia LIU Zizhou LIU Wenfan WU Yaozu CHEN Xiangyang JIANG Jianlong HE | 2021 | Journal of Oceanology and Limnology2021，39，4： | 3 |
| 2 | A case of lethal hemolytic anemia associated with severe pneumonia caused by Mycoplasma pneumoniae显示文摘To the editor:A 31-year-old previous healthy male patient was admitted to the hospital with fever (Tmax 41℃) and non-productive cough for seven days and dyspnea for three days.On day 4 after disease onset,his chest X-ray showed right upper lung small opacity and left lung large opacity (Figure 1A).The patient has been administrated levofloxacin for two days before he came into our hospital. | Gu Li Chen Xiukai Li Huiqiao Qu Jiuxin Miao Miao Zhou Fei Zhu Yanyan Wang Xu Wang Chunlei Liu Yingmei Li Wenxiong Cao Bin | 2014 | Chinese Medical Journal2014，，21： | 3 |
| 3 | An atlas of CNV maps in cattle, goat and sheep显示文摘Copy number variation(CNV)is the most prevalent type of genetic structural variation that has been recognized as an important source of phenotypic variation in humans,animals and plants.However,the mechanisms underlying the evolution of CNVs and their function in natural or artificial selection remain unknown.Here,we generated CNV region(CNVR)datasets which were diverged or shared among cattle,goat,and sheep,including 886 individuals from 171 diverse populations.Using 9 environmental factors for genome-wide association study(GWAS),we identified a series of candidate CNVRs,including genes relating to immunity,tick resistance,multi-drug resistance,and muscle development.The number of CNVRs shared between species is significantly higher than expected(P<0.00001),and these CNVRs may be more persist than the single nucleotide polymorphisms(SNPs)shared between species.We also identified genomic regions under long-term balancing selection and uncovered the potential diversity of the selected CNVRs close to the important functional genes.This study provides the evidence that balancing selection might be more common in mammals than previously considered,and might play an important role in the daily activities of these ruminant species. | Yongzhen Huang Yunjia Li Xihong Wang Jiantao Yu Yudong Cai Zhuqing Zheng Ran Li Shunjin Zhang Ningbo Chen Hojjat Asadollahpour Nanaei Quratulain Hanif Qiuming Chen Weiwei Fu Chao Li Xiukai Cao Guangxian Zhou Shudong Liu Sangang He Wenrong Li Yulin Chen Hong Chen Chuzhao Lei Mingjun Liu Yu Jiang | 2021 | Science China(Life Sciences)2021，64，10： | 2 |
| 4 | Dynamic chromatin architectures provide insights into the genetics of cattle myogenesis显示文摘Background Sharply increased beef consumption is propelling the genetic improvement projects of beef cattle in China.Three-dimensional genome structure is confirmed to be an important layer of transcription regulation.Although genome-wide interaction data of several livestock species have already been produced,the genome structure states and its regulatory rules in cattle muscle are still limited.Results Here we present the first 3D genome data in Longissimus dorsi muscle of fetal and adult cattle(Bos taurus).We showed that compartments,topologically associating domains(TADs),and loop undergo re-organization and the structure dynamics were consistent with transcriptomic divergence during muscle development.Furthermore,we annotated cis-regulatory elements in cattle genome during myogenesis and demonstrated the enrichments of promoter and enhancer in selection sweeps.We further validated the regulatory function of one HMGA2 intronic enhancer near a strong sweep region on primary bovine myoblast proliferation.Conclusions Our data provide key insights of the regulatory function of high order chromatin structure and cattle myogenic biology,which will benefit the progress of genetic improvement of beef cattle. | Jie Cheng Xiukai Cao Xiaogang Wang Jian Wang Binglin Yue Wei Sun Yongzhen Huang Xianyong Lan Gang Ren Chuzhao Lei Hong Chen | 2023 | Journal of Animal Science and Biotechnology2023，14，4： | 0 |
| 5 | Bioaccumulation and Elimination Rule of Prometryn inHard Clam Meretrix meretrix显示文摘The bioaccumulation and elimination rule of prometryn in hard clam Meretrix meretrix were studied under semi-static conditions. When the water temperature was(12±1) ℃, M. meretrix were exposed to the seawater containing 1, 10, and 100 μg/L prometryn. The content of prometryn in M. meretrix increased with the increase of exposed concentration, and both had significant positive correlation. The accumulation of prometryn in M. meretrix first increased then decreased, and finally fluctuated at a certain level. The maximum accumulation content was observed in M. meretrix when exposed to prometryn for 10, 14 and 18 d, and the maximum bioaccumulation factors(BCFs) were 22.9, 8.3 and 4.3, respectively. At the forth day of the elimination test, the content of prometryn in M. meretrix of each group were decreased above 50%. At the 22 ndday of the elimination test,the content of prometryn in M. meretrix were decreased to 8.7%, 5.6% and 2.6% of the initial content in the elimination test, respectively. The re-sults indicated that hard clam M. meretrix had strong bioaccumulation and elimination ability on prometryn. | zhang wang fan guangyu meng xianglong wang teng chen xiukai mang qi | 2018 | Animal Husbandry and Feed Science2018，10，4： | 0 |
| 6 | 3D genome organization and its study in livestock breeding显示文摘Eukaryotic genomes are hierarchically packaged into cell nucleus,affecting gene regulation.The genome is organized into multiscale structural units,including chromosome territories,compartments,topologically associating domains(TADs),and DNA loops.The identification of these hierarchical structures has benefited from the development of experimental approaches,such as 3C-based methods(Hi-C,ChIA-PET,etc.),imaging tools(2D-FISH,3D-FISH,Cryo-FISH,etc.)and ligation-free methods(GAM,SPRITE,etc.).In recent two decades,numerous studies have shown that the 3D organization of genome plays essential roles in multiple cellular processes via various mechanisms,such as regulating enhancer activity and promoter-enhancer interactions.However,there are relatively few studies about the 3D genome in livestock species.Therefore,studies for exploring the function of 3D genomes in livestock are urgently needed to provide a more comprehensive understanding of potential relationships between the genome and production traits.In this review,we summarize the recent advances of 3D genomics and its biological functions in human and mouse studies,drawing inspiration to explore the 3D genomics of livestock species.We then mainly focus on the biological functions of 3D genome organization in muscle development and its implications in animal breeding. | Jie Cheng Xiukai Cao Shengxuan Wang Jiaqiang Zhang Binglin Yue Xiaoyan Zhang Yongzhen Huang Xianyong Lan Gang Ren Hong Chen | 2024 | Journal of Integrative Agriculture2024，23，1： | 0 |
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