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https://www.readbyqxmd.com/read/28922774/crop-model-assisted-phenomics-and-genome-wide-association-study-for-climate-adaptation-of-indica-rice-1-phenology
#1
Michael Dingkuhn, Richard Pasco, Julie M Pasuquin, Jean Damo, Jean-Christophe Soulié, Louis-Marie Raboin, Julie Dusserre, Abdoulaye Sow, Baboucarr Manneh, Suchit Shrestha, Alpha Balde, Tobias Kretzschmar
Phenology and time of flowering are crucial determinants of rice adaptation to climate variation. A previous study characterized flowering responses of 203 diverse indica rices (the ORYTAGE panel) to ten environments in Senegal (six sowing dates) and Madagascar (two years and two altitudes) under irrigation in the field. This study used the physiological phenology model RIDEV V2 to heuristically estimate component traits of flowering such as cardinal temperatures (base temperature (Tbase) and optimum temperature), basic vegetative phase, photoperiod sensitivity and cold acclimation, and to conduct a genome-wide association study for these traits using 16 232 anonymous single-nucleotide polymorphism (SNP) markers...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28919968/a-new-species-of-melitaea-from-israel-with-notes-on-taxonomy-cytogenetics-phylogeography-and-interspecific-hybridization-in-the-melitaea-persea-complex-lepidoptera-nymphalidae
#2
Vladimir A Lukhtanov
Specimens with intermediate morphology are often considered to be the result of ongoing interspecific hybridization; however, this conclusion is difficult to prove without analysis of chromosomal and/or molecular markers. In the butterfly genus Melitaea, such an intermediacy can be detected in male genitalia, and is more or less regularly observed in localities where two closely related, presumably parental species are found in sympatry. Here I analyze a high altitude Melitaea population from Mt. Hermon in north Israel and show that its male genitalia are clearly differentiated from those found in phenotypically similar M...
2017: Comparative Cytogenetics
https://www.readbyqxmd.com/read/28919665/hurricane-imaging-radiometer-hirad-wind-speed-retrievals-and-validation-using-dropsondes
#3
Daniel J Cecil, Sayak K Biswas
Surface wind speed retrievals have been generated and evaluated using Hurricane Imaging Radiometer (HIRAD) measurements from flights over Hurricane Joaquin, Hurricane Patricia, Hurricane Marty, and the remnants of Tropical Storm Erika, all in 2015. Procedures are described here for producing maps of brightness temperature, which are subsequently used for retrievals of surface wind speed and rain rate across a ~50 km wide swath for each flight leg. An iterative retrieval approach has been developed to take advantage of HIRAD's measurement characteristics...
August 2017: J Atmos Ocean Technol
https://www.readbyqxmd.com/read/28919307/a-journey-between-high-altitude-hypoxia-and-critical-patient-hypoxia-what-can-it-teach-us-about-compression-and-the-management-of-critical-disease
#4
M L Avellanas Chavala
High altitude sickness (hypobaric hypoxia) is a form of cellular hypoxia similar to that suffered by critically ill patients. The study of mountaineers exposed to extreme hypoxia offers the advantage of involving a relatively homogeneous and healthy population compared to those typically found in Intensive Care Units (ICUs), which are heterogeneous and generally less healthy. Knowledge of altitude physiology and pathology allows us to understanding how hypoxia affects critical patients. Comparable changes in mitochondrial biogenesis between both groups may reflect similar adaptive responses and suggest therapeutic interventions based on the protection or stimulation of such mitochondrial biogenesis...
September 14, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/28915226/pulmonary-vascular-function-and-aerobic-exercise-capacity-at-moderate-altitude
#5
Vitalie Faoro, Gael Deboeck, Marco Vicenzi, Anne-Fleur Gaston, Bamodi Simaga, Grégory Doucende, Ilona Hapkova, Emma Roca, Enric Subirats, Fabienne Durand, Robert Naeije
PURPOSE: There has been suggestion that a greater "pulmonary vascular reserve" defined by a low pulmonary vascular resistance (PVR) and a high lung diffusing capacity (DL) allow for a superior aerobic exercise capacity. How pulmonary vascular reserve might affect exercise capacity at moderate altitude is not known. METHODS: Thirty-eight healthy subjects underwent an exercise stress echocardiography of the pulmonary circulation, combined with measurements of DL for nitric oxide (NO) and carbon monoxide (CO) and a cardiopulmonary exercise test at sea level and at an altitude of 2250 m...
October 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28914975/seroepidemiology-of-hepatitis-e-virus-infection-in-pigs-in-durango-state-mexico
#6
Cosme Alvarado-Esquivel, Luis Francisco Sánchez-Anguiano, Jesús Hernández-Tinoco, Ángel Osvaldo Alvarado-Félix
No information about hepatitis E virus (HEV) infection in pigs in the northern Mexican state of Durango exists. We determined the seroprevalence and correlates of anti-HEV IgG antibodies in pigs in Durango, Mexico. Through a cross-sectional study, we studied 427 pigs raised in backyards (n = 328), or slaughtered (n = 99) in Durango. Sera of pigs were analyzed for anti-HEV IgG antibodies using a commercially available enzyme-linked immunoassay. Antibodies to HEV were found in 193 (45.2%) of the 427 pigs studied...
September 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28914897/dual-frequency-doppler-lidar-for-wind-detection-with-a-superconducting-nanowire-single-photon-detector
#7
Mingjia Shangguan, Haiyun Xia, Chong Wang, Jiawei Qiu, Shengfu Lin, Xiankang Dou, Qiang Zhang, Jian-Wei Pan
A dual-frequency direct detection Doppler lidar is demonstrated using a superconducting nanowire single-photon detector (SNSPD) at 1.5 μm. The so-called double-edge technique is implemented by using a dual-frequency laser pulse, rather than using a double-channel Fabry-Perot interferometer. Such a modification to the reported lidars enhances the frequency stability in the system level. Using the time-division multiplexing method, only one piece of SNSPD is used in the optical receiver, making the system simplified and robust...
September 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28914359/changes-in-acid-base-and-ion-balance-during-exercise-in-normoxia-and-normobaric-hypoxia
#8
Olaf Lühker, Marc Moritz Berger, Alexander Pohlmann, Lorenz Hotz, Tilmann Gruhlke, Marcel Hochreiter
PURPOSE: Both exercise and hypoxia cause complex changes in acid-base homeostasis. The aim of the present study was to investigate whether during intense physical exercise in normoxia and hypoxia, the modified physicochemical approach offers a better understanding of the changes in acid-base homeostasis than the traditional Henderson-Hasselbalch approach. METHODS: In this prospective, randomized, crossover trial, 19 healthy males completed an exercise test until voluntary fatigue on a bicycle ergometer on two different study days, once during normoxia and once during normobaric hypoxia (12% oxygen, equivalent to an altitude of 4500 m)...
September 15, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28912589/microbial-diversity-in-the-hypersaline-lake-meyghan-iran
#9
Ali Naghoni, Giti Emtiazi, Mohammad Ali Amoozegar, Mariana Silvia Cretoiu, Lucas J Stal, Zahra Etemadifar, Seyed Abolhassan Shahzadeh Fazeli, Henk Bolhuis
Lake Meyghan is one of the largest and commercially most important salt lakes in Iran. Despite its inland location and high altitude, Lake Meyghan has a thalassohaline salt composition suggesting a marine origin. Inputs of fresh water by rivers and rainfall formed various basins characterized by different salinities. We analyzed the microbial community composition of three basins by isolation and culturing of microorganisms and by analysis of the metagenome. The basins that were investigated comprised a green ~50 g kg(-1) salinity brine, a red ~180 g kg(-1) salinity brine and a white ~300 g kg(-1) salinity brine...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28912514/retinal-changes-following-rapid-ascent-to-a-high-altitude-environment
#10
X Tian, B Zhang, Y Jia, C Wang, Q Li
PurposeTo determine what impact rapid ascension to a high-altitude environment has on the retina with the aim of preventing and treating high-altitude oculopathy.Patients and methodsParticipants in the study were members of the Chinese military assigned to the high-altitude environment of the Tibetan plateau. Ninety-one participants were enrolled in the study. Optical coherence tomography was used to measure the thickness of retina-related indicators. Measurements were taken before and after exposure to the high-altitude environment and upon return to the baseline altitude...
September 15, 2017: Eye
https://www.readbyqxmd.com/read/28910914/-changes-to-sleep-patterns-in-young-migrants-at-high-altitude
#11
Z D Ha, K L Pan, X L Jian, J P Luo, S Q Guan, W W Guo
Objective: To explore the relationship between the level of acclimatization and the changes to sleep architecture in migrants at high altitude. Methods: Nocturnal sleep recordings of 50 subjects aged between 18 and 25 years [mean age (20.9±2.0) years] were analyzed. Those young volunteers were divided into 3 700 m-3 m group(n=10, migrated to an altitude of 3 700 metres for 3 months), 3 700 m-1 y group(n=10, for 1 year) , 5 380 m-3 m group(n=8), 5 380 m-1 y group(n=9), and compared with a control group(n=13, at 1 400 m altitude)...
September 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28910201/reentry-high-altitude-pulmonary-edema-in-the-himalayas
#12
Santosh Baniya, Christopher Holden, Buddha Basnyat
Baniya, Santosh, Christopher Holden, and Buddha Basnyat. Reentry high altitude pulmonary edema in the Himalayas. High Alt Med Biol. 16:000-000, 2017.-Reentry high altitude pulmonary edema (HAPE), a subset of HAPE, is a well recognized, life-threatening illness documented almost exclusively in the North and South Americans, who live at high altitude (>2500 m) and return to their homes after a brief sojourn of days to months at lower altitude. This phenomenon has not been reported in Sherpas or other people of Tibetan origin in Nepal or India...
September 14, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28905263/the-cricotopus-oliveiriella-diptera-chironomidae-of-the-high-altitude-andean-streams-with-description-of-a-new-species-c-o-rieradevallae
#13
N Prat, A Paggi, C Ribera, R Acosta, B Ríos-Touma, C Villamarín, F Rivera, P Ossa, M Rieradevall
The genus Oliveiriella (Chironomidae, Orthocladiinae) was erected by Wiedenbrug & Fittkau (1997). The adults have characteristic black spots on their wings and other characteristics similar to the genus Cricotopus. Pupal skins are very characteristic with strong short spines in the anal lobe instead of setae, while larvae are distinguishable by the long anal papillae and the intense blue color of their body. However, Andersen et al (2013) consider Oliveiriella as a subgenera of Cricotopus. In this paper, using the sequences of the cox1 gene, we conclude that Oliveiriella should be considered a subgenus within Cricotopus, confirming its status in Andersen et al (2013)...
September 13, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28904775/how-shrub-encroachment-under-climate-change-could-threaten-pollination-services-for-alpine-wildflowers-a-case-study-using-the-alpine-skypilot-polemonium-viscosum
#14
Jessica A Kettenbach, Nicole Miller-Struttmann, Zoë Moffett, Candace Galen
Under climate change, shrubs encroaching into high altitude plant communities disrupt ecosystem processes. Yet effects of encroachment on pollination mutualisms are poorly understood. Here, we probe potential fitness impacts of interference from encroaching Salix (willows) on pollination quality of the alpine skypilot, Polemonium viscosum. Overlap in flowering time of Salix and Polemonium is a precondition for interference and was surveyed in four extant and 25 historic contact zones. Pollinator sharing was ascertained from observations of willow pollen on bumble bees visiting Polemonium flowers and on Polemonium pistils...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28902963/rhizospheric-fungi-and-their-link-with-the-nitrogen-fixing-frankia-harbored-in-host-plant-hippophae-rhamnoides-l
#15
Xue Zhou, Lei Tian, Jianfeng Zhang, Lina Ma, Xiujun Li, Chunjie Tian
Sea buckthorn (Hippophae rhamnoides L.) is a pioneer plant used for land reclamation and an appropriate material for studying the interactions of symbiotic microorganisms because of its nitrogen-fixing root nodules and mycorrhiza. We used high-throughput sequencing to reveal the diversities and community structures of rhizospheric fungi and their link with nitrogen-fixing Frankia harbored in sea buckthorn collected along an altitude gradient from the Qinghai Tibet Plateau to interior areas. We found that the fungal diversities and compositions varied between different sites...
September 13, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/28901662/acute-hypoxemia-and-vascular-function-in-healthy-humans
#16
N C S Lewis, A R Bain, K W Wildfong, D J Green, P N Ainslie
Endothelium-dependent flow mediated dilation (FMD) and endothelium-independent dilation (GTN) are impaired at high altitude (5050 m), and FMD is impaired following acute exposure (<60-minutes) to normobaric hypoxia equivalent to ∼5050 m (∼FI O2  = 0.11). Whether glyceryl trinitrate (GTN)-induced dilation is impaired acutely, and whether FMD is impaired during milder hypoxia is unknown. Therefore, we assessed brachial FMD at baseline and following 30-minutes of mild (74 ± 2 mmHg PET O₂) and moderate (50 ± 3 mmHg PET O₂) normobaric hypoxia (n = 12) or normoxia (time-control trial; n = 10)...
September 13, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28900588/correction-hydration-status-as-a-predictor-of-high-altitude-mountaineering-performance
#17
Eric Ladd, Katherine M Shea, Patrick Bagley, Paul S Auerbach, Elizabeth A Pirrotta, Ewen Wang, Grant Lipman
[This corrects the article DOI: 10.7759/cureus.918.].
September 8, 2017: Curēus
https://www.readbyqxmd.com/read/28900198/analysis-and-comparison-of-the-wolf-microbiome-under-different-environmental-factors-using-three-different-data-of-next-generation-sequencing
#18
Xiaoyang Wu, Huanxin Zhang, Jun Chen, Shuai Shang, Jiakuo Yan, Yao Chen, Xuexi Tang, Honghai Zhang
Next Generation Sequencing has been widely used to characterize the prevalence of fecal bacteria in many different species. In this study, we attempted to employ a low-cost and high-throughput sequencing model to discern information pertaining to the wolf microbiota. It is hoped that this model will allow researchers to elucidate potential protective factors in relation to endangered wolf species. We propose three high-throughput sequencing models to reveal information pertaining to the micro-ecology of the wolf...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28898582/spatio-temporal-distribution-and-alpine-behavior-of-short-chain-chlorinated-paraffins-in-air-at-shergyla-mountain-and-lhasa-on-the-tibetan-plateau-of-china
#19
Jing Wu, Wei Gao, Yong Liang, Jianjie Fu, Yan Gao, Yawei Wang, Guibin Jiang
Pristine high-altitude mountains are ideal areas for studying the potential mechanism behind the long-range transport and environmental behavior of persistent organic pollutants (POPs) in remote areas. Short chain chlorinated paraffins (SCCPs) are the most complex halogenated contaminants in the environment, and have attracted extensive worldwide interest in recent years. In this study, the spatio-temporal concentrations and distributions of SCCPs in air collected from Shergyla Mountain (located in the southeast of the Tibetan Plateau) and Lhasa were investigated during 2012-2015...
September 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28898272/iron-deficiency-was-not-the-major-cause-of-anemia-in-rural-women-of-reproductive-age-in-sidama-zone-southern-ethiopia-a-cross-sectional-study
#20
Tafere Gebreegziabher, Barbara J Stoecker
BACKGROUND: Anemia, which has many etiologies, is a moderate/severe public health problem in young children and women of reproductive age in many developing countries. The aim of this study was to investigate prevalence of iron deficiency, anemia, and iron deficiency anemia using multiple biomarkers and to evaluate their association with food insecurity and food consumption patterns in non-pregnant women from a rural area of southern Ethiopia. METHODS: A cross-sectional study was conducted in 202 rural women of reproductive age in southern Ethiopia...
2017: PloS One
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