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The superiority of multi-trait models with genotype-by-environment interactions in a limited number of environments for genomic prediction in pigs

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Journal of Animal Science and Biotechnology 2021年第1期12卷 207-219页

作者： hailiang song Qin Zhang Xiangdong Ding National Engineering Laboratory for Animal Breeding Laboratory of Animal GeneticsBreeding and ReproductionMinistry of AgricultureCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention Shandong Agricultural UniversityTaian 271001China.

Background: Different production systems and climates could lead to genotype-by-environment(G × E) interactions between populations, and the inclusion of G × E interactions is becoming essential in breeding decisions. The objective of this study was to investigate the performance of multi-trait models in genomic prediction in a limited number of environments with G × E interactions.Results: In total, 2,688 and 1,384 individuals with growth and reproduction phenotypes, respectively, from two Yorkshire pig populations with similar genetic backgrounds were genotyped with the PorcineSNP80 panel.Single-and multi-trait models with genomic best linear unbiased prediction(GBLUP) and BayesC π were implemented to investigate their genomic prediction abilities with 20 replicates of five-fold cross-validation.Our results regarding between-environment genetic correlations of growth and reproductive traits(ranging from 0.618 to 0.723) indicated the existence of G × E interactions between these two Yorkshire pig populations. For single-trait models, genomic prediction with GBLUP was only 1.1% more accurate on average in the combined population than in single populations, and no significant improvements were obtained by BayesC π for most traits. In addition, single-trait models with either GBLUP or BayesC π produced greater bias for the combined population than for single populations. However, multi-trait models with GBLUP and BayesC π better accommodated G × E interactions,yielding 2.2% – 3.8% and 1.0% – 2.5% higher prediction accuracies for growth and reproductive traits, respectively,compared to those for single-trait models of single populations and the combined population. The multi-trait models also yielded lower bias and larger gains in the case of a small reference population. The smaller improvement in prediction accuracy and larger bias obtained by the single-trait models in the combined population was mainly due to the low consistency of linkage disequilibrium between the two populations, which also caused the BayesC

关键词： Combined population Genotype-by-environment interaction Linkage disequilibrium Multi-trait model Pig

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The effect of continuous Ni(Ⅱ) exposure on the organic degradation and soluble microbial product(SMP) formation in two-phase anaerobic reactor

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Journal of Environmental Sciences 2015年第7期27卷 78-87页

作者： Wei Wu Tengteng Duan hailiang song Yan Li Ang Yu Long Zhang Aimin Li State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Jiangsu Key Lab of Environmental Engineering Jiangsu Provincial Academy of Environmental Science School of Energy and Environment Southeast University

A two-phase anaerobic reactor fed with glucose substrate（3 g chemical oxygen demand（COD）/L） was used to investigate the effects of toxic metals on the degradation of organics and the soluble microbial product（SMP） formation. Low concentrations of Ni（II）（5 and10 mg/L） promoted the acid phase, whereas high concentrations（15, 20, and 25 mg/L）exhibited an inhibitory effect on, but did not alter the fermentative method, which mainly involved the fermentation of propionic acid. The methanogenic microorganism exhibited a strong capability adapting constantly increased Ni（II） levels. The acid phase was an accumulation stage of SMP. In the absence of Ni（II）, the high-molecular-weight material in the effluent SMP mainly contained polysaccharide, tryptophan, and casein. Methanogens metabolized most of the polysaccharide, the whole tryptophan content, and part of the casein, leading to the presence of humic acid and protein in effluent. After Ni（II） dosage, the protein and polysaccharide of the acid phase increased, and tryptophan changed, while casein remained stable. More protein than polysaccharide was produced, suggesting the prominent function of protein when addressing the negative effect of toxic metals. The analysis of DNA confirmed the change of bacterial activity.

关键词： Soluble microbial products （SMP） Two-phase anaerobic reactor Upflow anaerobic sludge bed （UASB） Ni（II）

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Role of biologic components in a novel floating-bed combining Ipomoea aquatic, Corbicula fluminea and biofilm carrier media

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Frontiers of Environmental Science & Engineering 2014年第2期8卷 215-225页

作者： hailiang song Xianning LI Wei LI Xiwu LU School of Energy and Environment Southeast University Nanjing 210096 China Engineering Research Center for Water Environmental Protection of Taihu Lake Southeast University Wuxi Branch Wuxi 214135 China

A novel floating-bed incorporated with water spinach （Ipomoea aquatica）, Asiatic clam （Corbicula fluminea）, and carrier media supported biofilm was developed for eutrophic water purification. The contribu- tions of each biologic component to the removals of total nitrogen （TN）, total phosphorus （TP） and Chl.a were examined. The nutrient removals due to the direct uptake by either water spinach or Asiatic clam were less than 10%, suggesting a negligible role of biologic assimilation and leaving the biofilm as the indispensable biologic compo- nent in the floating-bed. Chl.a was reduced mainly by Asiatic clams via filter-feeding. Meanwhile, the digestion and excretion of Asiatic clams benefited the proliferation of nitrifying and denitrifying bacteria, resulting in the improvement of TN removal. In summary, the synergetic effects of water spinach, Asiatic clams and biofilms would promote the eutrophic water treatment performance of floating-bed in comparison with the conventional floating- bed with vegetation as the single biologic component.

关键词： floating-bed Corbicula fluminea biofilm cartier eutrophication

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基于改进Mask R-CNN的受电弓碳滑板优化检测算法

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计算机应用与软件 2024年第1期41卷 105-111,176页

作者：韩璐刘太豪宋海亮宋佳西南石油大学电气信息学院四川成都610500

针对传统受电弓碳滑板检测中检测效率低、检测精度差等缺点,提出一种基于Mask R-CNN的优化改进算法。该算法采用铁道部受电弓损坏评定的新规定及实地的样本数据集,通过改进特征提取算法的网络结构以及优化损失值来提高算法对图像的处理... 详细信息

针对传统受电弓碳滑板检测中检测效率低、检测精度差等缺点,提出一种基于Mask R-CNN的优化改进算法。该算法采用铁道部受电弓损坏评定的新规定及实地的样本数据集,通过改进特征提取算法的网络结构以及优化损失值来提高算法对图像的处理效率,实现受电弓碳滑板缺陷的掩膜准确标注,有效减小受电弓滑板的损毁对电力机车运行的影响。最终通过实验验证该算法对受电弓碳滑板缺陷的检测精度和效率有明显的提升作用。

关键词：改进Mask R-CNN 掩膜标注准确率特征提取损失值优化受电弓检测

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全面提升企业家卓越领导力的三个维度

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中国领导科学 2024年第3期 88-94页

作者：宋海良中国能源建设集团有限公司党委

企业家是推动高质量发展的生力军。面对百年未有之大变局,中国能源建设集团有限公司坚持以习近平新时代中国特色社会主义思想为指导,把培育、壮大优秀企业家队伍与企业战略同谋划、同部署,推动所属企业领导人员涵养“三家”特质、内化... 详细信息

企业家是推动高质量发展的生力军。面对百年未有之大变局,中国能源建设集团有限公司坚持以习近平新时代中国特色社会主义思想为指导,把培育、壮大优秀企业家队伍与企业战略同谋划、同部署,推动所属企业领导人员涵养“三家”特质、内化“六有”标准、提升“七大修养”,充分发挥“关键少数”带动“绝大多数”的作用,企业发展总体呈现全面奋进、全面拓展、全面向好、全面蓄能的崭新局面,发展质效与经营业绩连创历史新高。

关键词：企业家卓越领导力领导力特质领导力标准领导力修养

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农村生活污水处理与资源化利用及新污染物控制探讨

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能源环境保护 2024年第1期38卷 181-190页

作者：顾浩梁文伯李永木杨小丽宋海亮南京师范大学环境学院江苏南京210023 东南大学土木工程学院江苏南京211189

推动农村生活污水治理资源化利用是实现我国农村人居环境整治提升的重要举措。近年来,我国农村生活污水治理越来越关注到农村实际情况,并开始将治理思路由污水治理向资源化利用转变,追求简单高效可持续的治理模式。然而,农村生活污水中... 详细信息

推动农村生活污水治理资源化利用是实现我国农村人居环境整治提升的重要举措。近年来,我国农村生活污水治理越来越关注到农村实际情况,并开始将治理思路由污水治理向资源化利用转变,追求简单高效可持续的治理模式。然而,农村生活污水中新污染物的出现也给资源化利用过程带来了一些风险和问题。基于此背景,总结了当前我国农村生活污水资源化利用的三种模式,分别是尾水灌溉模式、经济作物种植模式和灰黑分离模式。重点介绍了人工湿地技术中的种植模式中以及湿地经济作物的选择。针对农村地区不同的人居环境和农田消纳面积,提出了不同类型的灰黑分离模式。根据农村生活污水中微塑料和抗生素等新污染物的出现,讨论分析了农村生活污水资源化利用的发展方向。

关键词：农村生活污水资源化利用人工湿地灰黑分离新污染物

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Simple method for transformation and gene editing in medicinal plants

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Journal of Integrative Plant Biology 2024年第1期66卷 17-19页

作者： Xuesong Cao Hongtao Xie Minglei song Lianghui Zhao hailiang Liu Guofu Li Jian‐Kang Zhu Institute of Advanced Biotechnology and School of Life Sciences Southern University of Science and TechnologyShenzhen 518055China Bellagen Biotechnology Co.Ltd. Jinan 250000China Institute for Regenerative Medicine Shanghai East HospitalTongji University School of MedicineShanghai 200123China Ministry of Agriculture and Rural Affairs Key Laboratory of Gene Editing Technologies Nanfan Research InstituteChinese Academy of Agricultural SciencesSanya 572024China

Gene-editing technologies have ushered in a significant advancement in plant genetics research and molecular breeding.However,a critical challenge hindering the widespread adoption of these technologies is the efficient delivery of gene-editing tools.The predominant methods for introducing these tools into plants typically involve Agrobacterium tumefaciens-mediated transformation or particle bombardment(Mao et al.,2019).Unfortunately,these traditional gene delivery methods require delicate and timeconsuming tissue culture procedures and show limited success,especially in medicinal and other less studied plants.A recent breakthrough is the development of the Cut-Dip-Budding(CDB)gene delivery system.The CDB system is highly effective for plants with root-suckering capabilities.It allows the delivery of transgenes and gene-editing tools into plants through hairy root induction followed by shoot regeneration from transformed hairy roots,bypassing the need for tissue culture processes(Cao et al.,2023).

关键词： transformation culture breakthrough

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The utilization of water resources and its variation tendency in Tarim River Basin

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Chinese Science Bulletin 2006年第A1期51卷 16-24页

作者： YE Mao XU hailiang song Yudong Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China

水资源有效利用在 Tarim 是生态的改进和经济开发的关键河盆。在整个河盆分析水资源利用和它的变化趋势是必要的。在八个气象学的车站和十五个水文学车站基于监视数据和形成，时间系列的方法，回归分析被用于在特别在源流和主流的区域... 详细信息

水资源有效利用在 Tarim 是生态的改进和经济开发的关键河盆。在整个河盆分析水资源利用和它的变化趋势是必要的。在八个气象学的车站和十五个水文学车站基于监视数据和形成，时间系列的方法，回归分析被用于在特别在源流和主流的区域分析水资源利用和变化趋势最近 10 年。量的结果显示源流区域的流入在过去的 40 年里有一个增加的趋势到不同程度。增加趋势的流量从 1994 ～ 2002 是更重要的，它证明在源流的水资源条件在一个优点。然而，与 25 的体积在水的条件下面增加#

关键词：新疆塔里木盆地水资源肯德尔测序

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The dynamic variation of water resources and its tendency in theTarim River Basin

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Journal of Geographical Sciences 2005年第4期15卷 467-474页

作者： XU hailiang YE Mao song Yudong Xinjiang Institute of Ecology and Geography CAS Urumqi 830011 China

The method of time series is applied to analyze the variation of precipitation and temperature from 1961 to 2002 in the mountainous areas of the Tarim River Basin, as well as water consumption in the headstream and mainstream areas. Those hydrologic parameters are verified. Quantitative results indicate that the precipitation and temperature in the headstream areas have an increasing trend to different extent. The increasing trend of precipitation is less significant than that of the temperature （α= 0.05）. Runoff of three headstreams also increases especially from 1994 to 2002. Compared with the perennial runoff, the annual runoff has increased by 25.163 × 10^8 m^3/a. However, inflows of the mainstream areas has only increased by 0.9985 × 10^8 m^3/a. So the runoff at the different hydrologic stations in the headstream areas has a linear decreasing trend. It is shown that the degraded trend of eco-environment of the Tarim River Basin hardly changes in the special water period for ten consecutive years. Given runoff of three headstreams is accounted in normal period fi＇om 1957 to 2003, the annual runoff of the headstream areas would be only 22.57 × 10^8 m^3. Therefore, more attention should be given to ecological safety of the Tarim River Basin.

关键词： Xinjiang Tarim River water resources

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Eco-water conveyances applied to control desertification at the lower reaches of the Tarim River

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Journal of Geographical Sciences 2005年第3期15卷 360-366页

作者： YE Mao XU hailiang song Yudong Xinjiang Institute of Ecology and Geography CAS Urumqi 830011 China

The lower reaches of the Tarim River are one of the areas suffering from most severe sandy desertification in Xinjiang, Northwest China. Irrational utilization of water and land resources results in eco-environmental deterioration in the Tarim River. In May 2000, the local government carried out the water conveyances project in the Tarim River. The influence of water conveyance on desertification reversion is analyzed and discussed according to the monitoring data in the past three years. Based on monitored data of the nine observed sections, along the channel of conveyance, the intensity and scope of desertification reversion in the upper reaches are larger than those in the lower reaches. Dynamic changes of desertification reversion are more obvious from the channel of conveyance to its two sides. However, the range of influence and intensity of desertification reversion is limited at present. It is suggested that the way and range of water conveyances should be adjusted in the future.

关键词： eco-water conveyances project （EWCP） the Tarim River desertification reversion influence

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