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Biogeographic patterns of polyploid species for the angiosperm flora in China

植物分类学报 2023年第5期61卷 776-789页

作者： Kai-Lai Wang Pu-Rong Deng Zhi Yao Jin-Yi Dong Zhi He Peng Yang Yong-Bo Liu State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Regional Eco-process and Function AssessmentChinese Research Academy of Environmental Sciences8 DayangfangBeijing 100012China

Exploring the frequency and distribution pattern of polyploid species in geographic parameters is of significance in understanding the mechanisms of polyploid speciation and evolutionary drivers of *** here explored polyploid and paleopolyploid incidence frequency in a scale of 100×100 km grids in *** found 33％of angiosperm species are polyploidy in China,and 23％of polyploid *** China and eastern China showed a significantly different polyploid and paleopolyploid frequency,with an evolutionary cradle of polyploid angiosperms in the Qinghai-Tibetan *** species exhibited higher polyploid frequency but lower paleopolyploid frequency than woody species,indicating the former experienced more rapid differentiation and speciation than the *** results indicate that western China is an evolutionary cradle for polyploid angiosperms where harsh environment facilitates the establishment andsurvival of polyploids,while polyploid lineages tend to rediploidize to be diploids with sufficient time in suitable environment.

关键词： angiosperm flora biogeographic patterns plant speciation polyploid frequency polyploid survival index rediploidization

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Heteroaggregation and sedimentation of natural goethite and artificial Fe3O4 nanoparticles with polystyrene nanoplastics in water

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Carbon Research 2024年第1期3卷 1-18页

作者： Wu, Aiming Yang, Chunyan Zhao, Xiaoli Wang, Junyu Liang, Weigang Wang, Xia Zhou, Lingfeng Teng, Miaomiao Hou, Guoqing Niu, Lin Tang, Zhi Wu, Fengchang State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China State Environment Protection Key Laboratory of Regional Eco-Process and Function Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China Lijiang Ecology Environment Bureau Gucheng Branch Lijiang674100 China

Iron oxide nanomaterials play important roles in biogeochemical processes. This study investigates the effects of representative natural carbonaceous materials (humic acid [HA] and extracellular polymeric substances [EPS]) and cations on the heteroaggregation and sedimentation of engineered and natural iron oxide nanomaterials with montmorillonite and sulfate- and amine-modified polystyrene (PS) nanoparticles (NPs) (S- and N-PS NPs, respectively) in water, assessing their environmental behavior and differences in colloidal stability parameters. In addition, a novel extended Derjaguin–Landau–Verwey–Overbeek theory (XDLVO) was developed to describe the mechanism of colloidal behavior that concurrently considers gravitational and magnetic attraction forces. In CaCl2 solution and most natural water samples, negatively charged S-PS NPs promoted heteroaggregation with goethite and iron oxide (Fe3O4) NPs more than positively charged N-PS NPs with increased nanoplastic particle concentration. In seawater, the introduction of S- and N-PS NPs increased the maximum net energy (barrier) (ΦMAX) of heteroaggregation and sedimentation with goethite and Fe3O4 NPs, facilitating dispersal and suspension of the system. The X-ray photoelectron spectroscopy (XPS) and molecular dynamics simulation results suggested that Ca2+ forms bridging interactions between Fe3O4 and S-PS NPs to promote aggregation, while competitive adsorption occurs between the N atoms of N-PS NPs and Ca2+ on the surface of Fe3O4 NPs. The study findings will help to improve the understanding of interfacial processes affecting ions at nanomaterial/water interfaces and assessments of the geochemical behavior and ecological risks of nanoplastics. © The Author(s) 2024.

关键词： Suspended sediments

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The third dimension of alpine plant leaf traits is related to cold-tolerance

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Plant Diversity 2025年第1期47卷 159-165页

作者： Yuan Wang Ji Suonan Kun Liu Yanni Gao Sihao Zhu Qian Liu Ning Zhao State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina College of Life Sciences Qinghai Normal UniversityXiningChina College of Ecology Lanzhou UniversityLanzhouChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijingChina

Alpine plants possess unique traits to adapt alpine *** leaf trait relationships of alpine plants can be captured by the two trait dimensions of organ size and resource economics is *** hypothesized that,beyond the trait dimensions of leaf size and resource economics,nonstructured carbohydrates(NSC)would reflect a dimension of cold-tolerance in alpine *** test this hypothesis,we measured 12 leaf traits critical to leaf construction and growth in 143 species across 7 sites ranging from alpine steppes to alpine meadows along an environmental gradient on the Tibetan ***,a cold resistance experiment was conducted at one of these sites to estimate the lethal temperature causing 50%frost damage(LT_(50))of 11 alpine *** majority of variations in 12 leaf traits of alpine plants were captured by three trait axes,in which leaf carbon(LCC)and NSC(including leaf starch;LSC and leaf soluble sugars;LSS)were clustered in a new dimension(PC3)beyond leaf size and structure,and resource *** LCC,LSC and LSS all showed negative correlations with mean annual temperature,a significant negative correlation was only found between LSS and LT_(50).It indicated that PC3 was able to reflect the cold-tolerance of alpine plants to some extent,in which LSS was the most critical *** storage and transformation of NSC under stressful conditions could reflect a dimension of long-term metabolic adaptation and cold-tolerance,which is an extension of the resource-utilization strategy beyond construction cost and growth.

关键词： Non-structured carbohydrates Resource economics Stress resistance Trait relationships The lethal temperature causing 50%frost damage(LT50)

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A New Brown Frog of the Genus Rana(Anura,Ranidae)from North China,with a Taxonomic Revision of the *** Species Group

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Asian Herpetological Research 2022年第3期13卷 145-158页

作者： Huijun SHEN Mengyu XU Xinyue YANG Zhuo CHEN Nengwen XIAO Xiaohong CHEN College of Life Sciences Henan Normal UniversityXinxiang 453007HenanChina The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province Xinxiang 453007HenanChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

The Rana chensinensis species group is widely distributed throughout North ***,its taxonomy and composition remain *** recent field investigations of the Taihang Mountains,a series of Rana specimens were collected,which were once identified as ***,these samples showed significant differences from *** of the type locality(Shaanxi Province in the Qinling Mountains)in both morphology and *** this paper,based on analyses of seventeen geographic populations from the Taihang and Qinling Mountains,we describe a new species(namely *** ***.)in the *** species group.A phylogenetic analysis of the *** species group based on mitochondrial genes—COI,16S rRNA and Cytb—revealed the monophyly of the cryptic species,which formed the sister taxon to *** comparisons indicated that the cryptic species can be distinguished from its congeners by a combination of ***,the distribution patterns of the Rana species in North China were *** populations of the southwestern Taihang Mountains,Xiaoqinling Mountains,and Funiu Mountains in Henan Province remain ***,whereas the populations recorded as *** in Beijing City,Hebei Province,and the southeastern Taihang Mountains of Henan Province should be revised as *** ***.

关键词： morphology phylogeny Rana taihangensis sp.nov Rana chensinensis species group taxonomic revision

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A survey of the tribe Mesosini Mulsant (Coleoptera: Cerambycidae) from Beijing, China

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Zoological Systematics 2022年第4期47卷 313-319页

作者： Jian Sun Siqin Ge Nengwen Xiao Meiying Lin Engineering Research Center for Forest and Grassland Disaster Prevention and Reduction Mianyang Normal UniversityMianyang 621000China Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

Four species of the tribe Mesosini Mulsant,1839 are recorded from Beijing,the capital of the People's Republic of China:Agelasta(Mesolophus)marmorata(Pic,1927),Mesosa(Perimesosa)atrostigma Gressitt,1942,M.(P.)hyunchaei Yamasako&Hasegawa,2009,and M.(Mesosa)myops(Dalman,1817).M.(P.)hyunchaei Yamasako&Hasegawa,2009 is recorded from China for the first time,including Beijing and Jiangsu.

关键词： Longhorn beetles Lamiinae biodiversity surveys new record

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大规模人工造林是否会加剧中国北方土壤水分亏缺?

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Science Bulletin 2024年第10期69卷 1506-1514页

作者：王秋铭刘鸿雁梁博毅石亮伍露曹静 College of Urban and Environmental Sciences and PKU Saihanba StationPeking UniversityBeijing 100871China College of Forestry Precision Forestry Key Laboratory of BejingBejing Forestry UniversityBeijing 10083China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China China Meteorological Administration Training Center Beijing 100081China State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Regional Eco-process and Function AssessmentChinese Research Academy of Environmental SciencesBeijing 100012China

Trading water for carbon has cautioned large-scale afforestation in global ***,model simulations suggested that the consumption of soil water could be partially offset by increasing precipitation due to vegetation feedback.A systematic meta-analysis of long-term and large-scale field observations is urgently required to address the abovementioned limitations,and the implementation of large-scale afforestation since 1978 in northern China provides an ideal *** study collected data comprising 1226 observations from 98 sites in northern China to assess the variation in soil water content(SWC)with stand age after afforestation and discuss the effects of tree species,precipitation and conversions of land use types on *** found that the SWC has been decreased by coniferous forest and broadleaf forest at rates of 0.6 and 3.2 mm decade-1,respectively,since *** is a significant declining trend of SWC with the stand age of plantations,and the optimum growth stage for plantation forest is 0-20 a in northern ***,we found increases in SWC for the conversion from grassland to forest and in the low-precipitation region,both are corresponding to the increased SWC in coniferous *** study implies that afforestation might lead to a soil water deficit crisis in northern China in the long term at the regional scale but depends on prior land use types,tree taxa and the mean annual precipitation regime,which sheds light on decision-making regarding ecological restoration policies and water resource management in drylands.

关键词： Soil water Afforestation Tree planting Land use changes Arid and semiarid area

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Genome Assembly and Population Resequencing Reveal the Geographical Divergence of Shanmei(Rubus corchorifolius)

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Genomics, Proteomics & Bioinformatics 2022年第6期20卷 1106-1118页

作者： Yinqing Yang Kang Zhang Ya Xiao Lingkui Zhang Yile Huang Xing Li Shumin Chen Yansong Peng Shuhua Yang Yongbo Liu Feng Cheng Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Horticultural CropsMinistry of Agriculture and Rural AffairsSino-Dutch Joint Laboratory of Horticultural GenomicsBeijing 100081China Biotechnology Research Center Xiangxi Academy of Agricultural SciencesJishou 416000China Lushan Botanical Garden Chinese Academy of SciencesJiujiang 332900China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

Rubus corchorifolius(Shanmei or mountain berry,2n=14)is widely distributed in China,and its fruits possess high nutritional and medicinal ***,we reported a highquality chromosome-scale genome assembly of Shanmei,with contig size of 215.69 Mb and 26,696 *** comparison among Rosaceae species showed that Shanmei and Fupenzi(Rubus chingii Hu)were most closely related,followed by blackberry(Rubus occidentalis),and that environmental adaptation-related genes were expanded in the Shanmei *** resequencing of 101 samples of Shanmei collected from four regions in the provinces of Yunnan,Hunan,Jiangxi,and Sichuan in China revealed that among these samples,the Hunan population of Shanmei possessed the highest diversity and represented the more ancestral ***,the Yunnan population underwent strong selection based on the nucleotide diversity,linkage disequilibrium,and historical effective population size ***,genes from candidate genomic regions that showed strong divergence were significantly enriched in the flavonoid biosynthesis and plant hormone signal transduction pathways,indicating the genetic basis of adaptation of Shanmei to the local *** high-quality assembled genome and the variome dataset of Shanmei provide valuable resources for breeding applications and for elucidating the genome evolution and ecological adaptation of Rubus species.

关键词： Rubus corchorifolius Genome assembly Resequencing Divergence Genome evolution

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Utilization Rate and Influencing Factors of Wildlife Passages in Xinjiang Protected Area System

SSRN

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SSRN 2024年

作者： Fu, Mengdi Li, Shuang Wang, Jun Key Laboratory of Regional Eco-Process and Function Assessment and State Environment Protection Chinese Research Academy of Environmental Sciences Beijing100012 China Center for Biodiversity and Nature Reserve Chinese Academy of Environmental Planning Beijing100043 China

The expansion of linear infrastructure represents a significant threat to biodiversity. Given the paucity of research on the systematic conservation of species diversity, it becomes imperative to conduct extensive research on the utilisation of wildlife passages. We selected typical areas within the Xinjiang protected area system for the investigation and monitoring. This involved evaluating the utilization of passages during different periods and identifying the main influencing factors to improve the utilization rate of passages. The objective was to provide basic data support for revealing the interaction mechanism between linear infrastructure such as roads and fences and wild animal activities. The results indicated that 32 species of wild animals were photographed, including 13 species of birds representing 8 families from 5 orders, and 19 species of mammals representing 10 families from 5 orders. The relative abundance index of Cetartiodactyla and Perissodactyla wild animals, including bharal, goitered gazelle, asian wild ass, and wild bactrian camel, was notably high. Utilization rates of the passage at night were significantly higher than at other periods. The wild animals exhibited the highest selectivity for the underpass passage (JSInight=4.08) of the Kalamaili Mountain Ungulate Wildlife Nature Reserve and the fenced passage reserved of the Bosten Lake Scenic Area (JSInight=4.19). Wild animals exhibited a strong preference for the passage during sunrise and sunset, with 86.86% of the monitored plots JSIsunrise>0 and 91.30% of the monitored plots JSIsunset>0. The density of linear infrastructure was a key factor influencing passage utilization, with a significantly negative correlation. This was followed by the intensity of human activities. Furthermore, the larger the passage size and the higher the vegetation coverage, the higher the utilization rate of wildlife passages. It is recommended that the spatial layout and design of wildlife passages be optim

关键词： Fences

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Dynamics of Phosphorus Content in the Water-Sediment Interface of Wetlands in a Mid-Temperature Steppe

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Water Environment Research 2024年 2019 Feb 10页

作者： He, Jing Su, Derong Lv, Shihai Diao, Zhaoyan Bu, He Zheng, Zhiron Ye, Shengxing State Environmental Protection Key Laboratory of Regional Eco-Process and Function Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China Grassland Resources and Ecology Research Center Beijing Forestry University Beijing100083 China Huihe National Nature Reserve Authority in Inner Mongolia Hailar021199 China

In order to reveal dynamics changes in phosphorus release from the sediments of wetlands in a mid-temperature steppe without external phosphorus input, the relationship between phosphorus content in the overlying water, sediment, and interstitial water was studied using the variables control method. The results showed that, during the incubation period, the content of total phosphorus in the overlying water and the content of total phosphorus in interstitial water both presented in the order of August > September > July. Furthermore, the correlation relationships between phosphorus content in the overlying water, total phosphorus in the interstitial water, and the ratios of sediment Olsen-P to total phosphorus in the interstitial water, indicated that Olsen-P might be a kind of release form of phosphorus - from the sediment to the overlying water of the wetlands in Hulunbeier steppe, without external phosphorus input. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

关键词： Water content

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Ceratopteris chunii and Ceratopteris chingii(Pteridaceae),two new diploid species from China,based on morphological,cytological,and molecular data

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Plant Diversity 2022年第3期44卷 300-307页

作者： Jun-Hao Yu Rui Zhang Qiao-Ling Liu Fa-Guo Wang Xun-Lin Yu Xi-Ling Dai Yong-Bo Liu Yue-Hong Yan Eastern China Conservation Centre for Wild Endangered Plant Resources Shanghai Chenshan Botanical GardenShanghai 201602China College of Life Science Shanghai Normal UniversityShanghai200234China Shenzhen Key Laboratory for Orchid Conservation and Utilization National Orchid Conservation Center of China and the Orchid Conservation&Research Center of ShenzhenShenzhen518114China Guangdong Provincial Key Laboratory of Applied Botany South China Botanical GardenChinese Academy of SciencesGuangzhou510650China College of Forestry Central South University of Forestry&TechnologyChangshaHunan410004China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing100012China

Understanding how natural hybridization and polyploidizations originate in plants requires identifying potential diploid ***,cryptic plant species are widespread,particularly in Ceratopteris(Pteridaceae).Identifying Ceratopteris cryptic species with different polyploidy levels is a challenge because Ceratopteris *** high degrees of phenotypic ***,two new cryptic species of Ceratopteris,Ceratopteris chunii and Ceratopteris chingii,are described and *** analyses reveal that each of the new species form a well-supported *** and *** are similar to Ceratopteris gaudichaudii *** and ***,respectively,but distinct from their relatives in the stipe,basal pinna of the sterile leaf or subelliptic shape of the fertile leaf,as well as the spore *** addition,chromosome studies indicate that *** and *** are both *** findings will help us further understand the origin of Ceratopteris polyploids in Asia.

关键词： Ceratopteris Phylogeny Chromosome Taxonomy Cryptic species

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