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QTL for floral stem lignin content and degradability in three recombinant inbred line (RIL) progenies of <i>Arabidopsis thaliana</i>and search for candidate genes involved in cell wall biosynthesis and degradability

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Open Journal of Genetics 2012年第1期2卷 7-30页

作者： H. Chavigneau n. Goué S. Delaunay A. Courtial L. Jouanin m. Reymond V. méchin Y. Barrière InRA UMR1318 Institut Jean-Pierre Bourgin 78026 Versailles France InRA Unité de Génétique et d'Amélioration des Plantes 86600 Lusignan France UmR5546 CnRS - Université Paul Sabatier 31326 Castanet-Tolosan France

Deciphering the genetic determinants involved in cell wall assembly is a strategic issue for breeding programs that target both ruminant feeding and biofuel production. The Arabidopsis thaliana model system has great potentials to elucidate the genetic determinants involved in cell wall component biosynthesis and those involved in the regulation cascades allowing their coordinated assembly. QTL for biomass quality related traits (cell wall content, lignin content, and cell wall degradability) were mapped in the three Arabidopsis RIL progenies Bay0 × Shahdara, Bur0 × col0, and Blh1 × col0. Overall, 40 QTL were detected for these traits, explaining up to 33 and 12% of the observed phenotypic variation for lignin content and cell wall degradability respectively. major QTL hotspots were mapped on chromosome 1 (position 5 mbp), chromosome 4 (position 1 mbp), and chromosome 5 (position 3 mbp). A putative candidate gene set (82 genes) was considered including those previously described as involved in cell wall phenolic component biosynthesis, their regulation factors, and genes involved in lignified tissue patterning. colocalisations observed (according to the reference sequence of col0) between the detected QTL and these candidate genes did not prioritize any of the three gene groups (monolignol biosynthesis, transcription factors, lignified tissue patterning). colocalizations were thus observed for 57% of monolignol biosynthesis related genes, 55% of the transcription factors considered, and 66% of genes considered to be involved in lignified tissue patterning and assembly. colocalizations were observed for at least one member of all investigated gene families, except WRKY transcription factors. colocalizations were also shown with several miRnA putatively involved in the regulation of lignifying tissue assembly. Taking into account the QTL shown in the Bur0 × col0 progeny, allelic variations were shown in the mYB32, mYB58, mYB75, GRAS SCARECROW, AtC3H14 zinc finger, SHI

关键词： Arabidopsis QTL Lignin Secondary Wall Digestibility Candidate Gene

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Laboratory-Grown Diamond:A Gemological Laboratory Perspective

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宝石和宝石学杂志（中英文） 2021年第6期23卷 25-39页

作者： Sally Eaton-magana Troy Ardon Christopher m.Breeding Gemological Institute of America Carlsbad 92008USA

This article provides an overview of the laboratory-grown diamonds seen at GIA over the last 15 *** that time,the diamond industry has witnessed an exponential increase in the quantity and quality of laboratory-grown diamonds and,therefore,these products’ability to be commercialized on a large *** presents a brief summary of the HPHT and CVD growth processes and then explores some of the major trends observed since GIA began providing synthetic diamond grading reports in *** trends include the shift towards larger and colorless *** also shows a shift towards CVD diamonds dominating the supply of laboratory-grown diamonds submitted for grading reports and that the majority of these have been subjected to post-growth HPHT *** addition,we briefly discuss some methods and strategies used for identification such as the distinguishing gemological characteristics and some recent approaches in advanced ***,we present an array of laboratory-grown diamonds that are currently unusual,however,these may become more common in the future.

关键词： HPHT-grown diamond CVD-grown diamond 4Cs,diamond melee fancy colored diamond

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蛇绿岩型铬铁矿中金刚石的浅源成因

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矿物岩石地球化学通报 2019年第1期38卷 175-175页

作者：夏群科 Farré-de-Pablo J Proenza J A González-Jiménez J m Garcia-Casco A colás V Roqué-RossellJ Camprubí A 不详

蛇绿混杂岩中的橄榄岩和铬铁矿中发现有大量的显微金刚石(microdiamond),其通常伴有超高压矿物组合(柯石英、斯石英等),这对于认识地球深部物质循环及动力学过程具有重要的指示意义。然而,实验表明,金刚石可以形成在低温低压环境(石墨... 详细信息

蛇绿混杂岩中的橄榄岩和铬铁矿中发现有大量的显微金刚石(microdiamond),其通常伴有超高压矿物组合(柯石英、斯石英等),这对于认识地球深部物质循环及动力学过程具有重要的指示意义。然而,实验表明,金刚石可以形成在低温低压环境(石墨稳定区域)中,不过至今在天然环境中还没有发现相关的证据。

关键词：微金刚石铬铁矿蛇绿岩型成因天然环境蛇绿混杂岩动力学过程矿物组合

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A novel Approach to Design Distribution Preserving Framework for Big Data

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Intelligent Automation & Soft Computing 2023年第3期35卷 2789-2803页

作者： mini Prince P.m.Joe Prathap Department of Information Technology St.Peter’s College of Engineering and TechnologyChennai600054TamilnaduIndia Department of Information Technology R.M.D Engineering CollegeChennai601206TamilnaduIndia

In several fields like financial dealing,industry,business,medicine,et cetera,Big Data(BD)has been utilized extensively,which is nothing but a collection of a huge amount of ***,it is highly complicated along with time-consuming to process a massive amount of ***,to design the Distribution Preserving Framework for BD,a novel methodology has been proposed utilizing manhattan Distance(mD)-centered Partition Around medoid(mD–PAm)along with Conjugate Gradient Artificial neural network(CG-Ann),which undergoes various steps to reduce the complications of ***,the data are processed in the pre-processing phase by mitigating the data repetition utilizing the map-reduce function;subsequently,the missing data are handled by substituting or by ignoring the missed *** that,the data are transmuted into a normalized ***,to enhance the classification performance,the data’s dimensionalities are minimized by employing Gaussian Kernel(GK)-Fisher Discriminant Analysis(GK-FDA).Afterwards,the processed data is submitted to the partitioning phase after transmuting it into a structured *** the partition phase,by utilizing the mD-PAm,the data are partitioned along with grouped into a ***,by employing CG-Ann,the data are classified in the classification phase so that the needed data can be effortlessly retrieved by the *** analogize the outcomes of the CG-Ann with the prevailing methodologies,the nSL-KDD openly accessible datasets are *** experiential outcomes displayed that an efficient result along with a reduced computation cost was shown by the proposed *** proposed work outperforms well in terms of accuracy,sensitivity and specificity than the existing systems.

关键词： Big data artiﬁcial neural network ﬁsher discriminant analysis distribution preserving framework manhattan distance

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Reading and Interpreting the Histone Acylation Code

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Genomics, Proteomics & Bioinformatics 2016年第6期14卷 329-332页

作者： Jelly H.m.Soffers Xuanying Li Susan m.Abmayr Jerry L.Workman Stowers Institute Jor medical Research Kansas CityMO 64111USA Department of Anatomy and Cell Biology University of Kansas Medical CenterKansas CityKS 66160USA

Decades of research has explored the epigenetic control of gene expression and the impact of histone post-translational modifications （PTms）, such as acetylation, on chromatin remodel- ing. Indeed, the writers, readers, and erasers of lysine acetylation are increasingly well understood. Recent studies have added crotonylation, butyrylation, and propionylation to the types of acylations by which histones are modified, and identified the YEATS protein domain as a critical reader of crotonylation. now, Haitao Li, David Allis, and their col- leagues expand the scope of protein domains capable of read- ing crotonyl-lysine （Kcr） to include double PHD finger （DPF） domains. Importantly, the mechanism through which these domains recognize Kcr is quite distinct from their recognition by the YEATS domain [1]. In this highlight, we discuss recognition of acylated histones by the bromodomain （BRD）, the YEATS domain, and PHD fingers. We contrast the structural basis for their recognition of histones modified by acetylation and more recently discovered histone crotonylation [2-6].

关键词： PHD Reading and Interpreting the Histone Acylation Code

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CLImATE CHARACTERIZATIOn mETHODOLOGY FOR COmFORT PURPOSES:A CASE In mEXICO

CLIMATE CHARACTERIZATION METHODOLOGY FOR COMFORT PURPOSES:A ...

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2007世界太阳能大会：太阳能与人类居住

作者： G lvarez m.A.Gijón C.medrano J.Ovidio J.Xamán J.J.Flores E.Sima Centro nacional de Investigaci6n y Desarrollo Tecnol6gico.CEnIDET-DGEST-SEP Prol.Av.Palmira s/n.col.Palmira.Cuernavaca MorelosC.P.62490México.

＜正＞This paper presents a climate characterization methodology for comfort *** climate characterization is based on the measured climatic variables collected by a meteorological automatic station for 7 municipalities of the State of morelos,***,a typical building in the State of morelos is selected to calculate energy loads by two methodologies:the heating and cooling degree-days and TRnSYS for different micro-climate conditions of the 7 *** two methodologies are compared. maps and graphs of monthly average temperatures,incident solar radiation,degree-days and energy loads are presented. The results show that,if we built the typical building built in morelos,the center and south locations of the State of morelos requires a very high amount of energy for cooling, 5528 ***,the north of the State of morelos requires an amount,2130 KWh,for heating in some municipalities for the same type of building.

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BPSCCO Superconducting Films Grown by Spray Pyrolysis Technique: Systematic Study of the Relationship between Pb Content and Annealing Conditions

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Advances in materials Physics and Chemistry 2012年第4期2卷 92-95页

作者： Y Elvia Díaz Valdés Concepción mejía García Ana maría Paniagua mercado Arturo méndez Sánchez Departamento de Física Escuela Superior de Física y Matemáticas – IPN Edif. 9 UPALM Col. San Pedro Zacatenco Deleg. GAM México 07737 México

Actually recent investigation in developing semiconducting-superconducting composites based in CdS and Bi-based superconductors has attracted interest in processing thin superconducting films. In this work are reported Bi-Pb-Sr-Ca-Cu-O (BPSCCO) thin films grown on mgO substrates by spray pyrolysis technique from a solution containing Bi(nO3)3, Pb(nO3)2, Sr(nO3)2, Ca(nO3)2 and Cu(nO3)2, with a subsequent solid state reaction for growing the Bi-based superconducting phases. Annealed films were characterized by X-ray diffraction, atomic absorption spectroscopy and resistance measurements. Interdependence between Pb content, annealing time and temperature, in the formation of superconducting phases was studied applying a fractional factorial design 3III4-2. Interrelation between Pb content, ta and Ta exists. The presence of Pb is necessary to stabilize the high-Tc phase but its content depends on the annealing conditions.

关键词： Superconductivity BPSCCO Superconducting Films Spray Pyrolysis Deposition Pb Content Annealing Conditions Experimental Design

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Phylogeny,genetics,and the partial life cycle of Oncomegas wageneri in the Gulf of mexico

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Current Zoology 2020年第3期66卷 275-283页

作者： Andrés mARTInEZ-AQUInO Víctor m.VIDAL-mARTInEZ F.Sara CECCARELLI Oscar mEnDEZ Lilia C.SOLER-JImEnEZ m.Leopoldina AGUIRRE-mACEDO Facultad de Ciencias Universidad Autonoma de Baja CaliforniaCarretera Transpeninsular 3917Fraccionamiento PlayitasEnsenadaBaja California 22860Mexico Laboratorio de Patologia Acuatica Departamento de Recursos del MarCentro de Investigacion y de Estudios Avanzados del Instituto Politecnico NacionalUnidad MeridaCordemexCarretera Antigua a Progreso Km.6MeridaYucatan 97310Mexico Departamento de Biologia de la Conservacion CONACYT-Centro de Investigacion Cientifica y de Educacion Superior de EnsenadaCarretera Ensenada-TjuanaEnsenadaBaja California 22860Mexico Laboratorio de Hidrobiologia Facultad de Biologia-XalapaUniversidad VeracruzanaCircuito Gonzalo Aguirre Beltran S/N Zona UniversitariaXalapaVeracruz 91090Mexico

Despite the diversity and ecological importance of cestodes,there is a paucity of studies on their life stages(i.e.,complete lists of intermediate,paratenic,and definitive hosts)and genetic *** example,in the Gulf of mexico(Gom)98 species of cestodes have been reported to date;however,data on their intraspecific genetic variation and population genetic studies are *** trypanorhynch cestode,Oncomegas wageneri,is found(among other places)off the American Western Atlantic Coast,including the Gom,and has been reported as an adult from stingrays and from several teleost species in its larval form(as plerocerci).This study represents the first report of 2 previously unregistered definitive hosts for ***,namely the Atlantic sharpnose shark Rhizoprionodon terraenovae and the southern stingray Hypanus *** this work,partial sequences of the 28S(region D1-D2)ribosomal DnA were analyzed to include *** within an eutetrarhynchoid phylogenetic *** *** individuals(which included plerocerci and adults)were recovered as monophyletic and Oncomegas celatus was identified as the sister species of ***,population genetic analyses of *** from the southern Gom were carried out using DnA sequences of the mitochondrial cytochrome c oxi-dase subunit 1(COI)gene,which reflected high genetic variation and a lack of genetic structure among the 9 oceanographic sampling *** on these results,*** is panmictic in the southern *** extensive sampling along the species entire distribution is necessary to make more accurate inferences of population genetics of ***.

关键词： barcode Cyclopsetta chittendeni population genetics Hypanus americanus Oncomegas Rhizoprionodon terraeno-vae 28S rDnA(D1-D2)

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Soil Organic Carbon Pools Under Switchgrass Grown as a Bioenergy Crop Compared to Other Conventional Crops

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Pedosphere 2013年第4期23卷 409-416页

作者： F.G.DOU F.m.HOnS W.R.OCUmPAUGH J.C.READ m.A.HUSSEY J.P.mUIR Texas A&m AgriLife Research &Extension Center at Beaumont Department of Soil and Crop Sciences Texas A&M University Texas A&m AgriLife Research Station at Beeville Texas A&m AgriLife Research and Extension Center at Dallas Texas A&m AgriLife Research and Extension Center at Stephenville

Switchgrass （Panicum virgaturn L.） has been proposed as a sustainable bioenergy crop because of its high yield potential, adap- tation to marginal sites, and tolerance to water and nutrient limitations. A better understanding of the potential effects of biomass energy crop production practices on soil biological properties and organic matter dynamics is critical to its production. Our objective was to evaluate changes in C pools under a warm-season perennial switchgrass in different soils compared to typically-grown crops col- lected at college Station, Dallas, and Stephenville, TX in February 2001. Sampling depths were 0-5, 5-15, and 15-30 cm. Switchgrass increased soil organic C （SOC）, soil microbial biomass C （SmBC）, mineralizable C, and particulate organic matter C （POm-C） com- pared to conventional cropping systems. Soil C concentrations were in the order： long-term coastal bermudagrass [Cynodon dactylon （L.） Pers.] 〉 switchgrass or kleingrass （Panicum coloratura L.） planted in 1992 〉 switchgrass 1997 〉 conventional cropping systems. Soil C concentrations tended to increase with increasing clay content. Greater microbial biomass C followed the order of Dallas 〉 college Station 〉 Stephenville, and ranged from approximately 180 mg C kg-1 soil at Stephenville to 1 900 mg C kg-1 soil at Dallas. Particulate organic C was more sensitive than other fractions to management, increasing as much as 6-fold under long-term coastal bermudagrass compared to conventional cropping systems. Our study indicated that conversion of conventional cropping systems into switchgrass production can sequestrate more SOC and improve soil biological properties in the southern USA.

关键词： cropping systems particulate organic C perennial grasses soil microbial biomass C soil mineralizable C

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microhardness,microstructure and Electrochemical Efficiency of an Al(Zn/xmg) Alloy after Thermal Treatment

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Journal of materials Science & Technology 2012年第3期28卷 255-260页

作者： Socorro Valdez m.Suarez O.A.Fregoso J.A.Juárez-Islas Instituto de Ciencias Fisicas-UnAm Av.Universidad S/N Col.Chamilpa062210CuernavacaMorelosMéxico Instituto de Investigaciones en materiales-UnAm Circuito escolar S/NCd.Universitaria04515MéxicoD.F.México

The influence of mg on the microhardness,microstructure and electrochemical efficiency of Al（Zn/xmg） alloys have been ***（Zn/xmg） alloys were prepared by metal mould casting method to diminish the process cost and to generate an alloy with homogenous microstructure and less casting *** hardness,X-ray diffraction,scanning electron microscopy and transmission electron microscopy were performed to determine the mg influence on the AlZn *** efficiency was used to relate the influence of mg with the thermal treatment on the corrosion behavior of the Al（Zn/xmg） *** results reveals the presence of Al 32（mgZn） 49 phase for two events;the first is when the mg content is above 5.49% in as-cast condition,and the second after the thermal treatment is carried out at 450℃ for 5 *** results also show that the microhardness and electrochemical efficiency have been influenced by the presence of Al 32（mgZn） 49 *** addition of mg modifies the microstructure,increases the content of Al 32（mgZn） 49 phase and improves the electrochemical efficiency.

关键词： Al(Zn/xmg) alloy microhardness Electrochemical efficiency microstructures

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