A5100760384- Botany and Geology in Latin America and Caribbean
- Plant Diversity and Evolution
- Botany, Ecology, and Taxonomy Studies
- Plant and Fungal Species Descriptions
- Species Distribution and Climate Change
- Plant Stress Responses and Tolerance
- Botany and Plant Ecology Studies
- Genetic diversity and population structure
- Sesquiterpenes and Asteraceae Studies
- Plant Toxicity and Pharmacological Properties
- Natural product bioactivities and synthesis
- Forest, Soil, and Plant Ecology in China
- Plant and animal studies
- Mycorrhizal Fungi and Plant Interactions
- Seed Germination and Physiology
- Ecology and Vegetation Dynamics Studies
- Plant Physiology and Cultivation Studies
- Plant Molecular Biology Research
- Plant Pathogens and Fungal Diseases
- Plant Taxonomy and Phylogenetics
- Environmental Changes in China
- Botanical Research and Chemistry
- Photosynthetic Processes and Mechanisms
- Advanced Computational Techniques and Applications
- Remote Sensing and Land Use
Kunming Institute of Botany
2015-2024
Beijing Forestry University
2020-2024
Chinese Academy of Sciences
2010-2024
University of Chinese Academy of Sciences
2013-2024
China Academy of Chinese Medical Sciences
2024
Jiangxi University of Traditional Chinese Medicine
2024
Wenzhou University
2024
California Academy of Sciences
2024
Henan Agricultural University
2021
Henan University
2021
ABSTRACT The evolution of the latitudinal diversity gradient (LDG), characterized by a peak in toward tropics, has captured significant attention evolutionary biology and ecology. However, inverse LDG (i‐LDG) mechanism, wherein species richness increases poles, remains inadequately explored. Cycads are among one oldest lineages extant seed plants have undergone extensive diversification tropics. Intriguingly, cycad abundance exhibits an i‐LDG pattern, underlying causes for this phenomenon...
Astroviruses are a non-enveloped virus with large host range breadth. AstV-associated gastroenteritis in human and animal, nephritis chicken, gout gosling hepatitis duckling pose great threats to public health poultry industry. Since early 2020, continuous emergence of fatal goose astrovirus (GAstV) infections characterized by articular visceral was reported China. Here, we described two outbreaks emerging disease different farms central Two virulent GAstV strains, designated as...
We recently reported that H 2S could significantly promote the germination of wheat grains subjected to aluminum (Al(3+)) stress.1 In these experiments seeds were pretreated with donor NaHS for 12 h prior Al(3+) stress. During this pre-incubation period we observed H2S increased activity grain amylase in absence Al(3+). Using embryoless half now show preferentially affects endosperm β-amylase and α-amylase synthesis is unaffected by treatment.
The transcription of glycine-rich RNA-binding protein 2 (PeGRP2) transiently increased in the roots and shoots Populus euphratica (a salt-resistant poplar) upon initial salt exposure tended to decrease after long-term NaCl stress (100 mM, 12 days). PeGRP2 overexpression hybrid tremula × P. alba ‘717-1B4’ (P. canescens) its sensitivity, which was reflected plant’s growth photosynthesis. contains a conserved RNA recognition motif domain at N-terminus, affinity purification (RAP) sequencing...
Delimitating species boundaries could be of critical importance when evaluating the species' evolving process and providing guidelines for conservation genetics. Here, delimitation was carried out on three endemic endangered Cycas with resembling morphology overlapped distribution range along Red River (Yuanjiang) in China: diananensis Z. T. Guan et G. D. Tao, parvula S. L. Yang multiovula Y. Wang. A total 137 individuals from 15 populations were genotyped by using chloroplastic (psbA-trnH,...
Ocean currents play a significant role in driving the long-distance dispersal (LDD), spatial distribution and phylogeographic patterns of many organisms. Integrating analyses mechanistic ocean current modelling can provide novel insights into evolutionary history terrestrial littoral species but has been rarely applied this context. We focused on group Cycas that have buoyant seeds occupy coastal habitats. By integrating evidence from simulations whole plastomic data, we examined circulation...
Abstract Dramatic crustal deformation and river incision in Southwest China induced by the Indo-Asian collision have long been argued to contribute complicated landscapes, heterogeneous environment abundant biodiversity this region. However, biological impacts promoting intraspecific phylogeographical subdivision divergence along Red River Fault zone (RRF) remain poorly understood. To investigate possible effects of tectonic movements variations within RRF, phylogeography Cycas dolichophylla...
The Cycas segmentifida complex consists of eight species whose distributions overlap in a narrow region Southwest China. These taxa are also morphologically similar and difficult to be distinguished. Consequently, their taxonomic status has been matter discussion recent years. To study this complex, we sequenced four plastid intergenic spacers (cpDNA), three nuclear genes genotyped 12 microsatellites for the from 19 different localities. DNA sequences were analyzed using Maximum Likelihood...
As a gymnosperm group, cycads are known for their ancient origin and specialized coralloid root, which can be used as an ideal system to explore the interaction between host associated microorganisms. Previous studies have revealed that some nitrogen-fixing cyanobacteria contribute greatly composition of endophytic microorganisms in cycad roots. However, roles environment shaping bacteria during recruitment process remain unclear. Here, we determined diversity, composition, function...
The therapeutic potential of fucoidan (FUC), a natural polysaccharide, in metabolic disorders is recognized, yet its underlying mechanisms remain unclear. We conducted investigations into the FUC sourced from Sargassum fulvellum concerning induced by high-sucrose diet (HSD), employing Drosophila melanogaster and mice models. larvae were subjected to HSD exposure monitor growth inhibition, reduced pupation, developmental delays. Additionally, we examined impact on growth- development-related...
This study assessed the level of bark damage on baobab trees (Adansonia digitata) as caused by elephants (Loxodonta africana), and possibility finding refuges where could escape within Pendjari Biosphere Reserve (PBR). Distributions PBR were compared using presence records both species taken along transect lines. Two sites (National Park vs. hunting zone) that differ in elephant density for intensity correlations between stem size population structure trees. Elephants baobabs showed...
Previous molecular dating studies revealed historical mass extinctions and recent radiations of extant cycads, but debates still exist between palaeobotanists evolutionary biologists regarding the origin evolution Cycadaceae.Using whole plastomic data, we revisited phylogeny this family found Palawan endemic Cycas clade was strongly related to all lineages from Southeast Eurasia, coinciding with a plate drift event occurring in Early Oligocene. By integrating fossil biogeographical...
Climate change, species dispersal ability and habitat fragmentation are major factors influencing distribution genetic diversity, especially for the range-restricted threatened taxa. Here, using four sequences of chloroplast DNAs (cpDNAs), three nuclear genes (nDNAs) microsatellites (SSRs), we investigated structure, divergence time population dynamics Cycas segmentifida D. Y. Wang et C. Deng, a cycad endemic to Southwest China. High levels diversity differentiation were revealed in...
Cycas panzhihuaensis L. Zhou & S. Y. Yang (Cycadaceae) is an endangered gymnosperm species endemic to the dry-hot valley of Jinsha River basin in southwest China. Although wild C. population from Panzhihua Cycad Natural Reserve well protected and its genetic diversity has been assessed, characteristics populations outside nature reserve, which face larger risks extinction, remain unknown. Furthermore, genetics historical dynamics this have not examined across entire range. In study, analyze...
The paleotropics harbor many biodiversity hotspots and show different species richness patterns. However, it remains unclear which factors are the most important in directly shaping patterns among regions (i.e. diversification rates, colonization times, dispersal frequency). Here we used Cycadaceae as a model system to test causes of regional paleotropics. Specifically, tested roles frequency, time, their combined role explaining regions. We generated well‐sampled, time‐calibrated phylogeny...
The evolution of dispersal modes has been proposed to promote the diversification angiosperms. However, little is known about relative impact different on plant diversification. We test association between and rates using Rhamnaceae, cosmopolitan buckthorn family, as a model. found that species with diplochory have highest followed by those myrmecochory ballistic dispersal, while lineages dispersed vertebrates wind relatively low rates. difference in may be closely linked distance ecological...
Nitrogen (N) plays an important role in mitigating salt stress tree species. We investigate the genotypic differences uptake of ammonium (NH4+) and nitrate (NO3-) importance for tolerance two contrasting poplars, salt-tolerant Populus euphratica Oliv. salt-sensitive P. simonii × (P. pyramidalis ×Salix matsudana) popularis cv. 35-44, popularis). Total N content, growth photosynthesis were significantly reduced after 7 days exposure to NaCl (100 mM) supplied with 1 mM NH4+ NO3-, while effects...
Expansins are cell wall (CW) proteins that mediate the CW loosening and regulate salt tolerance in a positive or negative way. The transcription of Populus trichocarpa expansin A6 (PtEXPA6) was downregulated upon prolonged duration stress (48 h) after transient increase induced by NaCl (100 mM). role PtEXPA6 determined transferring gene into hybrid species alba × P. tremula var. glandulosa clone 84K (84K) INRA '717-1B4' (717-1B4). PtEXPA6-transgenic poplars 717-1B4 showed...