8 Works

Data from: Impacts of environmental heterogeneity on moss diversity and distribution of Didymodon (Pottiaceae) in Tibet, China

Shanshan Song, Xuehua Liu, Xueliang Bai, Yanbin Jiang, Xianzhou Zhang, Chengqun Yu & Xiaoming Shao
Tibet makes up the majority of the Qinghai-Tibet Plateau, often referred to as the roof of the world. Its complex landforms, physiognomy, and climate create a special heterogeneous environment for mosses. Each moss species inhabits its own habitat and ecological niche. This, in combination with its sensitivity to environmental change, makes moss species distribution a useful indicator of vegetation alteration and climate change. This study aimed to characterize the diversity and distribution of Didymodon (Pottiaceae)...

Data from: Mining from transcriptomes: 315 single-copy orthologous genes concatenated for the phylogenetic analyses of Orchidaceae

Hua Deng, Guo-Qiang Zhang, Min Lin, Yan Wang & Zhong-Jian Liu
Phylogenetic relationships are hotspots for orchid studies with controversial standpoints. Traditionally, the phylogenies of orchids are based on morphology and subjective factors. Although more reliable than classic phylogenic analyses, the current methods are based on a few gene markers and PCR amplification, which are labor intensive and cannot identify the placement of some species with degenerated plastid genomes. Therefore, a more efficient, labor-saving and reliable method is needed for phylogenic analysis. Here, we present a...

Data from: Agricultural intensification and the functional capacity of soil microbes on smallholder African farms

Stephen A. Wood, Mark A. Bradford, Jack A. Gilbert, Krista L. McGuire, Cheryl A. Palm, Katherine L. Tully, Jizhong Zhou & Shahid Naeem
1. Fertilization may impact ecosystem processes that sustain agriculture, such as nutrient cycling, by altering the composition of soil microbial communities that regulate such processes. These processes are crucial to low-input, smallholder tropical agriculture, which supports 900 million of the world's poorest people. Yet little is known about how efforts to increase crop yield on such farms will affect the capacity of soil microbial communities to carry out ecosystem processes. 2. We studied the diversity...

Data from: Active site loop conformation regulates promiscuous activity in a lactonase from Geobacillus kaustophilus HTA426

Yu Zhang, Jiao An, Guang-Yu Yang, Aixi Bai, Baisong Zheng, Zhiyong Lou, Geng Wu, Wei Ye, Hai-Feng Chen, Yan Feng & Giuseppe Manco
Enzyme promiscuity is a prerequisite for fast divergent evolution of biocatalysts. A phosphotriesterase-like lactonase (PLL) from Geobacillus kaustophilus HTA426 (GkaP) exhibits main lactonase and promiscuous phosphotriesterase activities. To understand its catalytic and evolutionary mechanisms, we investigated a “hot spot” in the active site by saturation mutagenesis as well as X-ray crystallographic analyses. We found that position 99 in the active site was involved in substrate discrimination. One mutant, Y99L, exhibited 11-fold improvement over wild-type in...

Data from: A statistical skull geometry model for children 0-3 years old

Zhigang Li, Byoung-Keon Park, Weigou Liu, Jinhuan Zhang, Matthew P. Reed, Jonathan D. Rupp, Carrie N. Hoff & Jingwen Hu
Head injury is the leading cause of fatality and long-term disability for children. Pediatric heads change rapidly in both size and shape during growth, especially for children under 3 years old (YO). To accurately assess the head injury risks for children, it is necessary to understand the geometry of the pediatric head and how morphologic features influence injury causation within the 0–3 YO population. In this study, head CT scans from fifty-six 0–3 YO children...

Data from: Soil organic matter quantity and quality shape microbial community compositions of subtropical broadleaved forests

Junjun Ding, Yuguang Zhang, Mengmeng Wang, Xin Sun, Jing Cong, Ye Deng, Hui Lu, Tong Yuan, Joy D. Van Nostrand, Diqiang Li, Jizhong Zhou & Yunfeng Yang
As two major forest types in the subtropics, broadleaved evergreen and broadleaved deciduous forests have long interested ecologists. However, little is known about their belowground ecosystems despite their ecological importance in driving biogeochemical cycling. Here, we used Illumina MiSeq sequencing targeting 16S rRNA gene and a microarray named GeoChip targeting functional genes to analyse microbial communities in broadleaved evergreen and deciduous forest soils of Shennongjia Mountain of Central China, a region known as ‘The Oriental...

Data from: Reticulate evolution and sea-level fluctuations together drove species diversification of slipper orchids (Paphiopedilum) in Southeast Asia

Yan-Yan Guo, Yi-Bo Luo, Zhong-Jian Liu & Xiao-Quan Wang
South-East Asia covers four of the world's biodiversity hotspots, showing high species diversity and endemism. Owing to the successive expansion and contraction of distribution and the fragmentation by geographical barriers, the tropical flora greatly diversified in this region during the Tertiary, but the evolutionary tempo and mode of species diversity remain poorly investigated. Paphiopedilum, the largest genus of slipper orchids comprising nearly 100 species, is mainly distributed in South-East Asia, providing an ideal system for...

Data from: Impact of repeated exposures on information spreading in social networks

Cangqi Zhou, Qianchuan Zhao & Wenbo Lu
Clustered structure of social networks provides the chances of repeated exposures to carriers with similar information. It is commonly believed that the impact of repeated exposures on the spreading of information is nontrivial. Does this effect increase the probability that an individual forwards a message in social networks? If so, to what extent does this effect influence people’s decisions on whether or not to spread information? Based on a large-scale microblogging data set, which logs...

Registration Year

  • 2015
    8

Resource Types

  • Dataset
    8

Affiliations

  • Tsinghua University
    8
  • University of Oklahoma
    2
  • Lawrence Berkeley National Laboratory
    2
  • Chinese Academy of Sciences
    2
  • Chinese Academy of Forestry
    2
  • Columbia University
    1
  • University of Michigan-Ann Arbor
    1
  • Jilin University
    1
  • Inner Mongolia University
    1
  • Beijing Jiaotong University
    1