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Genetics of biochemical attributes regulating morpho-physiology of upland cotton under high temperature conditions

Journal of Cotton research 2024年第1期7卷 29-44页

作者： MAJEED Sajid CHAUDHARY Muhammad Tanees MUbARIK Muhammad Salman RANA Iqrar Ahmad SHAbAN Muhammad TAN Daniel KY JIA Yinhua DU Xiongming HINZE Lori AZHAR Muhammad Tehseen federal Seed Certification and Registration Department Ministry of National Food Security and ResearchIslamabad 44090Pakistan Horticultural research Institute National Agricultural Research CentreIslamabad 44000Pakistan Department of biotechnology University of NarowalNarowal 51600Pakistan Centre of agricultural biochemistry and biotechnology University of AgricultureFaisalabad 38400Pakistan Department of Plant breeding and Genetics University of Agriculture FaisalabadSub-Campus BurewalaVehariPakistan faculty of Science School of Life and Environ-mental SciencesPlant Breeding InstituteSydney Institute of AgricultureThe University of SydneySydneyNSW 2006Australia State Key Laboratory of Cotton biology Institute of Cotton Research of Chinese Academy of Agri-cultural ScienceAnyang 455000China agricultural research Service USDASouthern Plains Agricultural Research CentreCollege StationTX 77845USA Department of Plant breeding and Genetics University of AgricultureFaisal-abad 38400Pakistan School of Agriculture Sciences Zhengzhou UniversityZhengzhou 450000China.

background Cotton is a strategically important fibre crop for global textile *** profoundly impacts several countries’industrial and agricultural *** cotton production is continuously threatened by the unpre-dictable changes in climate,specifically high *** heat-tolerant,high-yielding cotton cultivars with wide adaptability to be grown in the regions with rising temperatures is one of the primary objectives of modern cotton breeding ***,the main objective of the current study is to figure out the effective breed-ing approach to imparting heat tolerance as well as the judicious utilization of commercially significant and stress-tolerant attributes in cotton ***,the two most notable heat-susceptible(fH-115 and NIAb Kiran)and tolerant(IUb-13 and GH-Mubarak)cotton cultivars were spotted to develop filial and backcross populations to accom-plish the preceding study *** heat tolerant cultivars were screened on the basis of various morphological(seed cotton yield per plant,ginning turnout percentage),physiological(pollen viability,cell membrane thermostabil-ity)and biochemical(peroxidase activity,proline content,hydrogen peroxide content)*** The results clearly exhibited that heat stress consequently had a detrimental impact on every studied plant trait,as revealed by the ability of crossing and their backcross populations to tolerate high ***,when considering overall yield,biochemical,and physiological traits,the IUb-13×fH-115 cross went over particularly well at both normal and high temperature ***,overall seed cotton yield per plant exhibited a posi-tive correlation with both pollen viability and antioxidant levels(POD activity and proline content).Conclusions Selection from segregation population and criteria involving pollen viability and antioxidant levels concluded to be an effective strategy for the screening of heat-tolerant cotton g

关键词： Accessions biochemical breeding Cotton Generation mean analysis Heat stress

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Opening Remarks:Perspectives of the International Cotton Genome Initiative

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棉花学报 2008年第S1期20卷 2-页

作者： YU John Z PERCY Richard G usda-ars southern plains agricultural research center 2881 f & b road college station

Thanks go to our hosts,the organizers,sponsors,and all participants who have put in great efforts to making the 2008 research Conference of the International Cotton Genome Initiative(ICGI,

关键词： Opening Remarks

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Seismicity changes and numerical simulation of coseismic deformation following the 2022 M_(s)6.8 Luding earthquake in Sichuan,China

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Science China Earth Sciences 2024年第8期67卷 2507-2521页

作者： Qiu MENG Zitao WANG Huai ZHANG Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences College of Earth and Planetary SciencesUniversity of Chinese Academy of SciencesBeijing 100049China Institute of Earthquake forecasting China Earthquake AdministrationBeijing 100036China southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China beijing Yanshan Earth Critical Zone National research station Beijing 101408China

The Xianshuihe fault is a major tectonic boundary between the Sichuan-Yunnan rhombic and bayanhar blocks in Southwest *** an average left-lateral strike-slip movement of 10–15 mm/yr,it is a fast-moving strike-slip continental *** September 5,2022,the Ms6.8 Luding earthquake occurred along the Moxi segment of the Xianshuihe fault,reaching a maximum intensity of IX and resulting in a significant number of casualties and severe property *** earthquake broke the long-standing seismic quiescence of the Xianshuihe fault,which lasted for more than 40 years,and was followed by a significant number of *** outstanding question is how the behavior of the Xianshuihe fault and major earthquakes changed following this *** this study,we examined the changes in regional seismicity following the Luding earthquake and identified the potential for future strong earthquakes along the Xianshuihe *** used a finite element numerical method to simulate the environment of the seismogenic fault and its adjacent *** addition,we used the coseismic slip model of the Luding earthquake with the split-node method to calculate how the stress and strain fields in the surrounding area were affected by the2022 *** stress changes were resolved in the main faults,and the seismicity of adjacent faults was analyzed in conjunction with the observed seismic *** results indicate that regional tectonic movement primarily occurred to the southeast along the Moxi *** stress field is approximately north-south in tension and east-west in *** in the stress field in the epicentral region of the Luding earthquake exceeded 1 *** maximum displacement of the coseismic deformation field was concentrated between Moxi town and Tuanjie village,and the Coulomb stress of the fault zone in this region experienced the largest ***,the b-value of the Gutenberg-Richter magnitude-frequency relationship at the epicenter a

关键词： Luding earthquake Seismicity Coulomb failure stress change finite element numerical simulation

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Legacy earthen berms influence vegetation and hydrologic complexity in the Altar Valley,Arizona

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International Soil and Water Conservation research 2023年第4期11卷 755-763页

作者： Mary H.Nichols Sara E.Duke Chandra Holifield Collins Lauren Thompson Southwest Watershed research center USDA-ARS2000 E.Allen Rd.TucsonAZ85719USA southern plains Area research center USDA-ARSSPARCCollege StationTX77845USA University of Arizona College of Science GraduateTucsonAZ85719USA

Across the American Southwest water development has played a critical role in managing *** berms have been constructed throughout US rangelands to manage runoff and reduce *** berms altered runoff patterns to increase soil moisture with positive local vegetative ***,altered runoff patterns can be considered a disturbance that affects broader scale vegetation *** hypothesized that the hydrologic impacts of earthen berms in semiarid rangelands will be reflected in contrasting upslope and downslope vegetation patterns.A supervised classification of grass,shrubs,and bare soil was performed using orthographic imagery taken in June 2016 to quantify the effects of 181 earthen berms in the uplands and floodplain of the Altar Valley in southern Arizona,*** berms blocked runoff,creating downslope runoff"shadows"within which the precipitation is the dominant water *** documented more bare soil downslope of intact berms in comparison with *** and shrub cover affected by berms were related to soil *** and shrub cover were not different above and below intact berms on fine textured soils,but on sites with coarser textured soil,grass cover was lower downslope of *** breaches occurred on coarser textured soils,the up and downslope differences in grass cover *** study points to the role of conservation structures in adding additional complexity to already heterogeneous landscapes by creating patchwork assemblages of vegetation and bare soil proximal to earthen runoff and erosion control berms.

关键词： Legacy conservation structure Earthen bank Earthen berm Land degradation Rangeland

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Seismicity changes and numerical simulation of coseismic deformation following the 2022 M6.8 Luding earthquake in Sichuan, China

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Science China Earth Sciences 2024年

作者： Qiu MENG Zitao WANG Huai ZHANG Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences College of Earth and Planetary SciencesUniversity of Chinese Academy of Sciences Institute of Earthquake forecasting China Earthquake Administration southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) beijing Yanshan Earth Critical Zone National research station

The Xianshuihe fault is a major tectonic boundary between the Sichuan-Yunnan rhombic and bayanhar blocks in Southwest *** an average left-lateral strike-slip movement of 10–15 mm/yr, it is a fast-moving strike-slip continental fault. On September 5, 2022, the Ms6.8 Luding earthquake occurred along the Moxi segment of the Xianshuihe fault, reaching a maximum intensity of IX and resulting in a significant number of casualties and severe property damage. This earthquake broke the long-standing seismic quiescence of the Xianshuihe fault, which lasted for more than 40 years, and was followed by a significant number of aftershocks. An outstanding question is how the behavior of the Xianshuihe fault and major earthquakes changed following this mainshock. In this study, we examined the changes in regional seismicity following the Luding earthquake and identified the potential for future strong earthquakes along the Xianshuihe fault. We used a finite element numerical method to simulate the environment of the seismogenic fault and its adjacent areas. In addition, we used the coseismic slip model of the Luding earthquake with the split-node method to calculate how the stress and strain fields in the surrounding area were affected by the2022 mainshock. Coulomb stress changes were resolved in the main faults, and the seismicity of adjacent faults was analyzed in conjunction with the observed seismic data. The results indicate that regional tectonic movement primarily occurred to the southeast along the Moxi segment. The stress field is approximately north-south in tension and east-west in *** in the stress field in the epicentral region of the Luding earthquake exceeded 1 MPa. The maximum displacement of the coseismic deformation field was concentrated between Moxi town and Tuanjie village, and the Coulomb stress of the fault zone in this region experienced the largest decrease. However, the b-value of the Gutenberg-Richter magnitude-frequency relations

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Map-based cloning of a recessive gene v_1 for virescent leaf expression in cotton(Gossypium spp.)

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Journal of Cotton research 2018年第2期1卷 35-43页

作者： ZHANG Youping WANG Qiaolian ZUO Dongyun CHENG Hailiang LIU Ke ASHRAf Javaria LI Simin fENG Xiaoxu YU John Z. SONG Guoli State Key Laboratory of Cotton biology Institute of Cotton Research of Chinese Academy of Agricultural Sciences U.S. Department of Agriculture-agricultural research Service (usda-ars) Southern Plains Agricultural Research Center College Station

background： Virescence, as a recognizable phenotype available for research on chloroplast development and in the early development stage of cotton, is not only photosynthesis but also for heterosis exploitation in cotton Methods： In current study, for fine mapping of virescent-1 （V1） in cotton, three populations with a total of 5 678 individuals were constructed using T582 which has the virescent trait. Tobacco rattle virus, TRV1 and TRV2 （pYL156）, were used as vectors for the virus-induced gene silencing （VlGS） assay. Results： The V1 gene was fine-mapped to a 20 kb interval on chromosome 20 of tetraploid cotton. We identified only one candidate gene with four single nucleotide polymorphisms between parents, among which the single nucleotide polymorphism at the position of 1 082 base pair caused the change of amino acid residue from Arg （3-79） to Lys （]-582）. The relative expression of the candidate gene in virescent plants was extensively lower than that in normal plants. Nullification of the gene by VlGS significantly turned the green leaf of normal cotton plants into yellow. We named this candidate gene as GhRVL. Conclusions： This study will facilitate the further research on virescent formation, and will be useful for breeding of hybrid cottons.

关键词： Cotton Virescence T582 VIGS

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Image dehazing based on dark channel prior and brightness enhancement for agricultural monitoring

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International Journal of agricultural and biological Engineering 2018年第2期11卷 170-176页

作者： Xiuyuan Wang Chenghai Yang Jian Zhang Huaibo Song college of Mechanical and Electronic Engineering Northwest A&F UniversityYangling 712100ShaanxiChina Key Laboratory of agricultural Internet of Things Ministry of AgricultureYangling 712100ShaanxiChina Shaanxi Key Laboratory of agricultural Information Perception and Intelligent Service YanglingShaanxi 712100China usda-ars southern plains agricultural research center 3103 F and B RoadCollege StationTexas 77845USA college of Resource and Environment Huazhong Agricultural UniversityWuhan 430070China

Obtaining clear and true images is a basic requirement for agricultural ***,under the influence of fog,haze and other adverse weather conditions,captured images are usually blurred and distorted,resulting in the difficulty of target *** image dehazing methods based on image enhancement technology can cause the loss of image information and image *** order to address the above-mentioned problems caused by traditional image dehazing methods,an improved image dehazing method based on dark channel prior(DCP)was *** enhancing the brightness of the hazed image and processing the sky area,the dim and un-natural problems caused by traditional image dehazing algorithms were *** different test groups were selected from different weather conditions to verify the effectiveness of the proposed algorithm,and the algorithm was compared with the commonly-used histogram equalization algorithm and the DCP *** image evaluation indicators including mean square error(MSE),peak signal to noise ratio(PSNR),and entropy were used to evaluate the dehazing *** showed that the PSNR and entropy with the proposed method increased by 21.81%and 5.71%,and MSE decreased by 40.07%compared with the original DCP *** performed much better than the histogram equalization dehazing method with an increase of PSNR by 38.95%and entropy by 2.04%and a decrease of MSE by 84.78%.The results from this study can provide a reference for agricultural field monitoring.

关键词： agricultural monitoring image dehazing monitoring image dark channel prior(DCP) brightness promoting

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Cotton Germplasm Collections:Opportunities and Challenges

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棉花学报 2008年第S1期20卷 13-页

作者： PERCY Richard G Crop Germplasm research Unit southern plains agricultural research center usda-ars 2881 f&b road college station Texas 77845

According to an fAO report in 1996,49000 cotton genotypes are being maintained in germplasm collections worldwide. Of these accessions,approximately 67% reside in the six largest collections. Identification of mutual ... 详细信息

关键词： Cotton Germplasm Collections

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Toward Development of a Whole-genome, bAC/bIbAC-based Integrated Physical/Genetic Map of the Cotton Genome Using the Upland Genetic Standard TM-1: bAC and bIb AC Library Construction, SSR Marker Development, and Physical/Genetic Map Integration

Toward Development of a Whole-genome, BAC/BIBAC-based Integr...

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第三届国际棉花基因组协会（筹）学术讨论会

作者： John Z.YU Russell J.KOHEL Nicole L.STEELE usda-ars Southern Plains Agricultural Research CenterCrop Germplasm Research Unit2765 F＆B RoadCollege StationTX 77845USA usda-ars Southern Plains Agricultural Research CenterCrop Germplasm Research Unit2765 F＆B RoadCollege StationTX 77845USA usda-ars Southern Plains Agricultural Research CenterCrop Germplasm Research Unit2765 F＆B RoadCOllege StationTX 77845USA

＜正＞ Integrative physical mapping is the centerpieceof and essential for advanced genomics *** cotton（Gossypium hirsutum L.）geneticstandard line TM-1 is used as the referencegenotype to develop a whole-genome,bAC/bIbAC-based integrated physical/genetic map ofthe cotton *** the TM-1 line we haveconstructed two bAC libraries with HindⅢandEcoRI,respectively,and one plant-transformation-competent binary bAC（bIbAC）library with *** large-insert bACand bIbAC libraries constructed with different

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Sequencing of the Cultivated Tetraploid Cotton Genome-Gossypium hirsutum

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棉花学报 2008年第S1期20卷 4-页

作者： KOHEL Russell J PERCY Richard G YU John Z usda-ars southern plains agricultural research center college station

Cotton is an important cash crop in the world,and it plays an irreplaceable role in China's national *** upland cotton(Gossypium hirsutum L.) represents 95% of the world's cotton production,but it has a complex allote... 详细信息

关键词： upland cotton genome sequence fiber yield and quality

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