63 Works

Data from: Population genetics reveals high connectivity of giant panda populations across human disturbance features in key nature reserve

Maiju Qiao, Thomas Connor, Xiaogang Shi, Jie Huang, Yan Huang, Hemin Zhang & Jianghong Ran
The giant panda is an example of a species that has faced extensive historical habitat fragmentation and anthropogenic disturbance, and is assumed to be isolated in numerous subpopulations with limited gene flow between them. To investigate the population size, health and connectivity of pandas in a key habitat area, we noninvasively collected a total of 539 fresh wild giant panda fecal samples for DNA extraction within Wolong Nature Reserve, Sichuan, China. Seven validated tetra-microsatellite markers...

Life history predicts flight muscle phenotype and function in birds

Shane DuBay, Yongjie Wu, Graham Scott, Yanhua Qu, Qiao Liu, Joel Smith, Chao Xin, Andrew Hart Reeve, Chen Juncheng, Dylan Meyer, Jing Wang, Jacob Johnson, Zachary Cheviron, Fumin Lei & John Bates
1. Functional traits are the essential phenotypes that underlie an organism’s life history and ecology. Although biologists have long recognized that intraspecific variation is consequential to an animals’ ecology, studies of functional variation are often restricted to species-level comparisons, ignoring critical variation within species. In birds, interspecific comparisons have been foundational in connecting flight muscle phenotypes to species-level ecology, but intraspecific variation has remained largely unexplored. 2. We asked how age- and sex-dependent demands on...

Data from: Plant-type dominates fine-root C:N:P stoichiometry across China: a meta-analysis

Zhiqiang Wang, Shiqi Lv, Hui Song, Mingcheng Wang, Qi Zhao, Heng Huang & Karl Niklas
Aim: Fine roots play an important role in biogeochemical cycling in terrestrial ecosystems. However, our understanding of large scale biogeographic patterns and drivers of fine-root C:N:P stoichiometry is extremely limited. Location: China. Methods: We compiled data for fine-root carbon (C), nitrogen (N) and phosphorus (P) concentrations at 165 sites across China to explore large-scale biogeographic patterns and drivers of fine-root C:N:P stoichiometry. Results: The geometric means of fine-root C, N, and P concentrations were 448.81...

Global distribution and evolutionary transitions of angiosperm sexual systems

Yunyun Wang, Ao Luo, Tong Lyu, Dimitar Dimitrov, Xiaoting Xu, Robert Freckleton, Yaoqi Li, Xiangyan Su, Yichao Li, Yunpeng Liu, Denis Sandanov, Qingjun Li, Zhanqing Hao, Shuguang Liu & Zhiheng Wang
Angiosperm sexual systems are fundamental to the evolution and distribution of plant diversity, yet spatiotemporal patterns in angiosperm sexual systems and their drivers remain poorly known. Using data on sexual systems and distributions of 68453 angiosperm species, we present the first global maps of sexual system frequencies and evaluate sexual system evolution during the Cenozoic. Frequencies of dioecy and monoecy increase with latitude, while hermaphrodites are more frequent in warm and arid regions. Transitions to...

Telerehabilitation program for COVID-19 survivors (TERECO) - Randomized controlled trial

Jan D. Reinhardt
Objectives To investigate superiority of a telerehabilitation program for Covid-19 (TERECO) over no rehabilitation with regard to exercise capacity, lower-limb muscle strength (LMS), pulmonary function, health-related quality of life (HRQOL), and dyspnoea. Design Parallel-group randomised controlled-trial with 1:1 block-randomisation. Setting Three major hospitals from Jiangsu and Hubei provinces, China. Participants 120 formerly hospitalised Covid-19 survivors with remaining dyspnoea complaints were randomised with 61 allocated to control and 59 to TERECO. Intervention Unsupervised home-based 6-week exercise...

Leading trait dimensions in flood-tolerant plants

Yingji Pan, Ellen Cieraad, Jean Armstrong, William Armstrong, Beverley Clarkson, Ole Pedersen, Eric Visser, Laurentius Voesenek & Peter Van Bodegom
Background and Aims While trait-based approaches have provided critical insights into general plant functioning, we lack a comprehensive quantitative view on plant strategies in flooded conditions. Plants adapted to flooded conditions have specific traits (e.g. root porosity, low root/shoot ratio and shoot elongation) to cope with the environmental stressors including anoxic sediments, and the subsequent presence of phytotoxic compounds. In flooded habitats, plants also respond to potential nutrient and light limitations, e.g. through the expression...

Data from: Genetic structure and post-glacial expansion of Cornus florida L. (Cornaceae): integrative evidence from phylogeography, population demographic history, and species distribution modeling

Ashley Call, Yan-Xia Sun, Yan Yu, Peter B. Pearman, David T. Thomas, Robert Trigiano, Ignazio Carbone, Qiu-Yun Xiang, Robert N. Trigiano, Yan-Xia Sun & Qiu-Yun Jenny Xiang
Repeated global climatic cooling and warming cycles during the Pleistocene played a major role in the distribution and evolution of the Earth biota. Here, we integrate phylogeography, coalescent-based Bayesian estimation of demographic history, and species distribution modeling (SDM) to understand the genetic patterns and biogeography of the flowering dogwood, Cornus florida subsp. florida L., since the Last Glacial Maximum (LGM). Natural populations of the species are severely threatened by dogwood anthracnose. We genotyped 306 plants...

Data from: Labor market integration of people with disabilities: results from the Swiss Spinal Cord Injury Cohort Study

Jan D. Reinhardt, Marcel W.M. Post, Christine Fekete, Bruno Trezzini, Martin W.G. Brinkhof, Marcel W. M. Post & Martin W. G. Brinkhof
Objectives: We aimed to describe labor market participation (LMP) of persons with spinal cord injury (SCI) in Switzerland, to examine potential determinants of LMP, and to compare LMP between SCI and the general population. Methods: We analyzed data from 1458 participants of employable age from the cross-sectional community survey of the Swiss Spinal Cord Injury Cohort Study. Data on LMP of the Swiss general population were obtained from the Swiss Federal Statistics Office. Factors associated...

Data from: The transcription factor Pou3f1 promotes neural fate commitment via activation of neural lineage genes and inhibition of external signaling pathways

Qingqing Zhu, Lu Song, Guangdun Peng, Na Sun, Jun Chen, Ting Zhang, Nengyin Sheng, Wei Tang, Cheng Qian, Yunbo Qiao, Ke Tang, Jing-Dong Han, Jinsong Li, Naihe Jing & Jing-Dong Jackie Han
The neural fate commitment of pluripotent stem cells requires the repression of extrinsic inhibitory signals and the activation of intrinsic positive transcription factors. However, how these two events are integrated to ensure appropriate neural conversion remains unclear. Here, we showed that Pou3f1 is essential for the neural differentiation of mouse embryonic stem cells (ESCs), specifically during the transition from epiblast stem cells (EpiSCs) to neural progenitor cells (NPCs). Chimeric analysis showed that Pou3f1 knockdown leads...

Data from: First insights into the giant panda (Ailuropoda melanoleuca) blood transcriptome: a resource for novel gene loci and immunogenetics

Lianming Du, Wujiao Li, Fujun Shen, Mingyu Yang, Zili Wang, Zhenxin Fan, Zuoyi Jian, Rong Hou, Bisong Yue & Xiuyue Zhang
The giant panda (Ailuropoda melanoleuca) is one of the most famous flagship species for conservation, and its draft genome has recently been assembled. However, the transcriptome is not yet available. In this study, the blood transcriptomes of three pandas were characterized and about 160 million sequencing reads were generated using Illumina HiSeq 2000 paired-end sequencing technology. The assembly yielded 92 598 transcripts with an average length of 1626 bp and N50 length of 2842 bp....

Preparation and regeneration of iron-modified nanofibres for low-concentration phosphorus-containing wastewater treatment

Ying Luo, Min Liu, Ying Chen, Tingting Wang & Wei Zhang
In this study, nanocellulose (CNFs) was prepared by a mechanical shearing method, a simple and pollution-free process. Iron hydroxide was loaded on nanocellulose, a natural macromolecule derived from bamboo, to produce the second generation iron-loaded nanocellulose for the removal of low-concentration phosphorus from wastewater. We found that the best modified ferric salt was ferric chloride. When the mass ratio of Fe(OH)3 and CNFs was 1.5:1, freeze-drying with liquid nitrogen yielded the best adsorption performance. The...

Data from: Isaacs syndrome associated with GABAB and AChR antibodies in sarcomatoid carcinoma

Bi Zhao, Jingfang Lin, Xu Liu, Yan Zeng, Chunlan Jia, Weihua Guo, Xue Gong, Dong Zhou, Zhen Hong & Huifang Shang
Isaacs syndrome is an acquired peripheral nerve hyperexcitability syndrome characterized by twitching, painful cramps, stiffness, delayed muscle relaxation, and sweating.1 Needle EMG findings include continuous single motor unit discharges occurring as doublets, triplets, and multiplet single unit discharges firing at higher rates (150–300 Hz; neuromyotonic discharges) and at lower rates (less than 60 Hz; myokymic discharges).2 Isaacs syndrome has been reported in patients with thymoma, small-cell lung carcinoma (SCLC), or lymphoma.2 Antibodies specific for voltage-gated...

Data from: Chasing ghosts: allopolyploid origin of Oxyria sinensis (Polygonaceae) from its only diploid congener and an unknown ancestor

Xin Luo, Quanjun Hu, Pingping Zhou, Dan Zhang, Qian Wang, Richard J. Abbott, Yaling Wang & Jianquan Liu
Reconstructing the origin of a polyploid species is particularly challenging when an ancestor has become extinct. Under such circumstances, the extinct donor of a genome found in the polyploid may be treated as a ‘ghost’ species in that its prior existence is recognized through the presence of its genome in the polyploid. In this study, we aimed to determine the polyploid origin of Oxyria sinensis (2n = 40) for which only one congeneric species is...

Data from: Genome-wide evidence reveals that African and Eurasian Golden Jackals are distinct species

Klaus-Peter Koepfli, John Pollinger, Raquel Godinho, Jacqueline Robinson, Amanda Lea, Sarah Hendricks, Rena M. Schweizer, Olaf Thalmann, Pedro Silva, Zhenxin Fan, Andrey A. Yurchenko, Pavel Dobrynin, Alexey Makunin, James A. Cahill, Beth Shapiro, Francisco Álvares, José C. Brito, Eli Geffen, Jennifer A. Leonard, Kristofer M. Helgen, Warren E. Johnson, Stephen J. O'Brien, Blaire Van Valkenburgh & Robert K. Wayne
The golden jackal of Africa (Canis aureus) has long been considered a conspecific of jackals distributed throughout Eurasia, with the nearest source populations in the Middle East. However, two recent reports found that mitochondrial haplotypes of some African golden jackals aligned more closely to gray wolves (Canis lupus), which is surprising given the absence of gray wolves in Africa and the phenotypic divergence between the two species. Moreover, these results imply the existence of a...

Leaf size of woody dicots predicts ecosystem primary productivity

Yaoqi Li, Peter Reich, Bernhard Schmid, Nawal Shrestha, Xiao Feng, Tong Lyv, Brian Maitner, Xiaoting Xu, Yichao Li, Dongting Zou, Zheng-Hong Tan, Xiangyan Su, Zhiyao Tang, Qinghua Guo, Xiaojuan Feng, Brian Enquist & Zhiheng Wang
A key challenge in ecology is to understand the relationships between organismal traits and ecosystem processes. Here, with a novel dataset of leaf length and width for 10,480 woody dicots in China and 2,374 in North America, we show that the variation in community mean leaf size is highly correlated with the variation in climate and ecosystem primary productivity, independent of plant life form. These relationships likely reflect how natural selection modifies leaf size across...

Data from: Phylogenetic conservatism and biogeographic affinity influence woody plant species richness-climate relationships in eastern Eurasia

Xiangyan Su, Nawal Shrestha, Xiaoting Xu, Denis Sandanov, Qinggang Wang, Siyang Wang, Dimitar Dimitrov & Zhiheng Wang
Mechanisms underlying species richness patterns remain a central yet controversial issue in biology. Climate has been regarded as a major determinant of species richness. However, the relative influences of different evolutionary processes, (i.e. niche conservatism, diversification rate, and time for speciation) on species richness-climate relationships remain to be tested. Here, using newly compiled distribution maps for 11,422 woody plant species in eastern Eurasia, we estimated species richness patterns for all species and for families with...

Data: Abiotic niche divergence of homoploid hybrid species from their progenitors

Danying Wang, Chen Shao, Yingying Zhu, Zhenxiang Xi, Xiaoting Xu & Jianquan Liu
Although more frequently reported recently than was previously expected, the role of ecology in the speciation of homoploid hybrid species (HHS) has not been quantitatively evaluated. We examined divergences in the niches of 22 assumed HHS (18 plants and four animals) from those of their progenitors using 52097 occurrences and 26 environmental factors (temperature, precipitation, altitude and soil). We identified three niche divergence patterns in HHS, niche novelty, niche contraction and niche intermediacy, by estimating...

The perfect storm: Gene tree estimation error, incomplete lineage sorting, and ancient gene flow explain the most recalcitrant ancient angiosperm clade, Malpighiales

Liming Cai, Zhenxiang Xi, Emily Lemmon, Alan Lemmon, Austin Mast, Christopher Buddenhagen, Liang Liu & Charles Davis
The genomic revolution offers renewed hope of resolving rapid radiations in the Tree of Life. The development of the multispecies coalescent (MSC) model and improved gene tree estimation methods can better accommodate gene tree heterogeneity caused by incomplete lineage sorting (ILS) and gene tree estimation error stemming from the short internal branches. However, the relative influence of these factors in species tree inference is not well understood. Using anchored hybrid enrichment, we generated a data...

Seeing through the hedge: Phylogenomics of Thuja (Cupressaceae) reveals prominent incomplete lineage sorting and ancient introgression for Tertiary relict flora

Jialiang Li, Yujiao Zhang, Markus Ruhsam, Richard Ian Milne, Yi Wang, Dayu Wu, Shiyu Jia, Tongzhou Tao & Kangshan Mao
The eastern Asia (EA) – eastern North America (ENA) disjunction is a typical and well known biogeographic. Although its origin has been the topic of many studies, some new insights will arise when more complex evolutionary histories are revealed using phylogenomic methods. Here, we used targeted exon capture and sequenced >1,000 single copy nuclear, plus 73 chloroplast genes, to resolve interspecific relationships and the biogeographic history of an intercontinental disjunct genus Thuja. Two separate clades...

Comparison among the chloroplast genomes of five species of Chamaerhodos (Rosaceae: Potentilleae): phylogenetic implications

Qin-Qin Li, Yan Yu, Zhi-Ping Zhang & Jun Wen
Chamaerhodos is a small genus with ca 7–8 species with a disjunct distribution in Asia and western North America. Due to limited sampling of species and genes in previous studies, little is known about the phylogenetic relationships among the species. Moreover, chloroplast genomic resources for Chamaerhodos have been limited. Herein, we conducted a comparative analysis of the complete chloroplast (cp) genomes of five Chamaerhodos species. The five cp genomes had a typical quadripartite structure with...

Data from: Effects of capsaicin-induced sensory denervation on early implant osseointegration in adult rats

Bo Huang, Jun Ye, Xiaohua Zeng & Ping Gong
The presence of nerve endings around the implant, but the interaction between the peripheral nervous system and the implant osseointegration is still unclear. The purpose of this study was to test the effects of selective sensory denervation on early implant osseointegration. Forty male Sprague-Dawley rats were randomly divided into group A and group B, and they were treated with capsaicin and normal saline, respectively. One week later, titanium implants were placed in the bilateral femur...

Data from: Risk of cache pilferage determines hoarding behavior of rodents and seed fate

Lin Cao, Bo Wang, Chuan Yan, Zhenyu Wang, Hongmao Zhang, Yuanzhao Geng, Jin Chen & Zhibin Zhang
Cache pilferage by competitors is thought to drive the evolution of hoarding behavior in animals, which plays significant roles in tree regeneration and formation of mutualisms between trees and animals. However, little is known how cache pilferage risk among seeds of different tree species or years affects hoarding behavior and seed dispersal by animals. We hypothesized that scatter-hoarding rodents could adjust hoarding behavior according to variation in cache pilferage risk among seeds and years to...

Data from: Males increase call frequency, not intensity, in response to noise, revealing no Lombard effect in the little torrent frog

Longhui Zhao, Xiaoqian Sun, Qinghua Chen, Yue Yang, Jichao Wang, Jianghong Ran, Steven E. Brauth, Yezhong Tang & Jianguo Cui
Noise is one of the main factors that can influence the processes of sound communication across a wide range of animal groups. Although the effects of ambient noise on animal communication, including anthropogenic noise, have received increasing attention, few studies have examined changes in the fine structure of acoustic signals produced by vocalizing species in constantly noisy environments. Here, we used natural recordings to determine the associations between stream noise and call parameters in the...

Data from: Allocation of nitrogen and phosphorus within and between the needles, stems, and roots of Picea seedlings

Zhi-Qiang Wang, Heng Huang, Xiaowei Li, Kangshan Mao, Jinzhi Ran, Jianming Deng, Xiao-Wei Li, Jin-Zhi Ran, Jian-Ming Deng & Kang-Shan Mao
The allocation of nutrients links ecosystem supply services to the functional traits and development of plants. This is particularly true for nitrogen (N) and phosphorus (P), which are important limiting resources in natural systems and are related to many aspects of plant biology. We investigated the scaling relationships associated with the N and P contents within specific organ types (needles, stems, and roots) and the same nutrients in the different organs of Picea seedlings from...

Data from: Opportunities for biodiversity gains under the world’s largest reforestation programme

Fangyuan Hua, Xiaoyang Wang, Xinlei Zheng, Robert Dorazio, Brendan Fisher, Lin Wang, Jianguo Zhu, Ya Tang, Douglas W. Yu & David S. Wilcove
Reforestation is a critical means of addressing the environmental and social problems of deforestation. China’s Grain-for-Green Program (GFGP) is the world’s largest reforestation scheme. Here we provide the first nationwide assessment of the tree composition of GFGP forests and the first combined ecological and economic study aimed at understanding GFGP’s biodiversity implications. Across China, GFGP forests are overwhelmingly monocultures or compositionally simple mixed forests. Focusing on birds and bees in Sichuan Province, we find that...

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  • Sichuan University
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