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| 1 | 印度与欧亚大陆初始碰撞时限、封闭方式和过程显示文摘印度与欧亚大陆初始碰撞是海陆热力对比变化、青藏高原-喜马拉雅造山带形成和亚洲气候转变的起点.本文根据近30年国内外的研究进展,系统总结了大陆初始碰撞的研究历史.对比了十多种初始碰撞研究方法,我们认为周缘前陆盆地的构造-沉积响应对大陆初始碰撞最为敏感,而古地磁学作为独立的证据也是非常好的定量研究方法.关于碰撞过程,与西方传统观点认为55~50Ma碰撞首先发生在西部衔接点,随后向东闭合的模式不同;最新的研究结果表明,印度与欧亚大陆首先于雅鲁藏布江缝合带中部发生正向碰撞,时间为65~63Ma,随后向东西两侧穿时性碰撞.大陆碰撞是一个复杂的造山过程,涉及构造、沉积、变质和岩浆作用等多个方面,不同学科的学者通常喜欢从各自学科的角度来定义碰撞.我们建议使用多学科结合、相互验证的方法,避免以偏概全、以点带面的现象发生,尽量将每个阶段发生的事件真实地还原到碰撞造山演化的时间序列中. | 丁林 Satybaev MAKSATBEK 蔡福龙 王厚起 宋培平 纪伟强 许强 张利云 Qasim MUHAMMAD Baral UPENDRA | 2017 | 中国科学:地球科学2017,47,3: | 61 |
| 2 | Processes of initial collision and suturing between India and Asia显示文摘The initial collision between Indian and Asian continents marked the starting point for transformation of land-sea thermal contrast,uplift of the Tibet-Himalaya orogen,and climate change in Asia.In this paper,we review the published literatures from the past 30 years in order to draw consensus on the processes of initial collision and suturing that took place between the Indian and Asian plates.Following a comparison of the different methods that have been used to constrain the initial timing of collision,we propose that the tectono-sedimentary response in the peripheral foreland basin provides the most sensitive index of this event,and that paleomagnetism presents independent evidence as an alternative,reliable,and quantitative research method.In contrast to previous studies that have suggested collision between India and Asia started in Pakistan between ca.55 Ma and50 Ma and progressively closed eastwards,more recent researches have indicated that this major event first occurred in the center of the Yarlung Tsangpo suture zone(YTSZ) between ca.65 Ma and 63 Ma and then spreading both eastwards and westwards.While continental collision is a complicated process,including the processes of deformation,sedimentation,metamorphism,and magmatism,different researchers have tended to define the nature of this event based on their own understanding,an intuitive bias that has meant that its initial timing has remained controversial for decades.Here,we recommend the use of reconstructions of each geological event within the orogenic evolution sequence as this will allow interpretation of collision timing on the basis of multidisciplinary methods. | DING Lin Satybaev MAKSATBEK CAI FuLong WANG HouQi SONG PeiPing JI WeiQiang XU Qiang ZHANG LiYun Qasim MUHAMMAD Baral UPENDRA | 2017 | Science China Earth Sciences2017,60,4: | 23 |
| 3 | 行距对棉花生长发育、产量及早熟性指数的影响的研究(英文)显示文摘棉花窄行密植生产是缩短棉花生长季节实现棉花早熟的主要举措,并且窄行密植对棉花的产量无显著影响。田间试验于2006年6月到2007年1月在巴基斯坦费萨拉巴德农业大学试验田进行,以确定行距对不同品系棉花的生长、生产和早熟性指数的影响。试验选取NIAB-111,CIM-496和FH-901 3个棉花品种,设置了60、75和90 cm 3种行距进行试验研究。结果表明:行距对棉花生长发育、产量和早熟性指数具有极显著影响;行距75 cm的处理产量最高达到2603 kg·hm-2,其次是行距60 cm的处理,产量为2541 kg·hm-2,但二者间差异不显著;行距60 cm的处理早熟性指数达到50.92%,显著大于其它处理;行距75 cm的处理次之。子棉产量最高的品种是FH-901,同时其早熟性指数也最高,达到54.34%。 | ANJUM Shakeel Ahmad SALEEM Muhammad Farrukh 王龙昌 薛兰兰 SHAH ID Muhammad Qasim ALI Shafaqat | 2010 | 棉花学报2010,22,6: | 11 |
| 4 | 筛选和转化药用野生稻TAC克隆获得耐旱水稻显示文摘【目的】利用分子生物学技术建立一种可有效转移药用野生稻有利基因的方法,为进一步大量开展利用药用野生稻有利基因提供技术基础。【方法】以植物抗性相关转录因子AP2/EREBP和bZIP家族基因保守序列为探针,采用同位素α-32P对探针进行标记,通过Southern杂交对药用野生稻TAC文库进行第一轮筛选;所获得阳性克隆用地高辛标记的探针进行第二轮筛选;最后利用PCR方法对第二轮筛选所获得的阳性克隆进行验证。通过农杆菌介导法将阳性克隆转入栽培稻品种日本晴,利用TAC载体插入片段两端的抗性标记Hpt和SacB,通过PCR扩增检测和和Southern杂交对转化植株进行鉴定。采用PEG胁迫法和生理指标变化对转基因T2植株的芽期、苗期耐旱性进行鉴定。【结果】第一轮TAC文库筛选共获得1 073个阳性克隆,其中,以AP2/EREBP的保守序列为探针筛选出606个、bZIP为探针筛选出467个。对这些阳性克隆进行第二轮筛选,从中共获得147个阳性克隆,其中,AP2/EREBP为探针筛选出95个、bZIP为探针筛选出52个。PCR验证有103个阳性克隆能够扩增出目的片段,分别是利用AP2/EREBP设计的引物筛选出63个克隆和bZIP的40个克隆,阳性克隆得率分别为66.32%和76.92%。通过农杆菌转化,以编号为52D-M16和22D-P2(与AP2/EREBP相关)以及55R-A17、49R-O14和8-A24(与bZIP相关)的克隆转化水稻日本晴均获得转化植株,转化试验结果发现外源插入片段越大则克隆转化的成苗率越低。抗性鉴定、PCR和Southern杂交结果均证明外源片段已转入受体水稻品种日本晴中。芽期抗旱性鉴定表明R12-23、R15-41和R1-8 3份材料的耐旱性优于受体日本晴,苗期鉴定显示M63-9和R12-23的耐旱性较强。综合认为,R12-23具有较好的耐旱性。【结论】通过构建药用野生稻TAC文库并结合特异克隆筛选和遗传转化方法,可以进行有利基因的转移,结合进一步的育种,有望实现药用野生稻在育种上的利用。 | 刘蕊 张欢欢 陈志雄 SHAHID Muhammad Qasim 傅雪琳 刘耀光 刘向东 卢永根 | 2014 | 中国农业科学2014,47,8: | 8 |
| 5 | Risk-averse Market Clearing for Coupled Electricity, Natural Gas and District Heating System显示文摘Multiple energy carriers can be coupled as an Integrated Energy System (IES) through interconnection tech- nologies. Unexpected risks will be transferred with the growing coupling of energy systems, mainly stemming from the uncertain- ties in different energy sectors. It is imperative to coordinate the operation of different energy systems to improve energy efficiency and ensure energy security. With the close integration of different energy systems, it is necessary to couple these different energy markets to achieve the holistic energy supply economy. On the other hand, uncertainties in the energy systems will bring the financial risk for the operator of IES. A risk-averse stochastic market clearing model for the IES is proposed to study the operating strategy aiming at minimizing the operation cost. While the financial risk imposed by the wind power uncertainties is restricted to a predefined level. Simulations results are provided to verify that the proposed model can improve market efficiency and handle the trade-off between cost and risk. | Haibing Wang Chengmin Wang Muhammad Qasim Khan Gengwu Zhang Ning Xie | 2019 | CSEE Journal of Power and Energy Systems2019,5,2: | 6 |
| 6 | Strategies on Sample Size Determination and Qualitative and Quantitative Traits Integration to Construct Core Collection of Rice (Oryza sativa)显示文摘The development of a core collection could enhance the utilization of germplasm collections in crop improvement programs and simplify their management. Selection of an appropriate sampling strategy is an important prerequisite to construct a core collection with appropriate size in order to adequately represent the genetic spectrum and maximally capture the genetic diversity in available crop collections. The present study was initiated to construct nested core collections to determine the appropriate sample size to represent the genetic diversity of rice landrace collection based on 15 quantitative traits and 34 qualitative traits of 2 262 rice accessions. The results showed that 50-225 nested core collections, whose sampling rate was 2.2%-9.9%, were sufficient to maintain the maximum genetic diversity of the initial collections. Of these, 150 accessions (6.6%) could capture the maximal genetic diversity of the initial collection. Three data types, i.e. qualitative traits (QT1), quantitative traits (QT2) and integrated qualitative and quantitative traits (QTT), were compared for their efficiency in constructing core collections based on the weighted pair-group average method combined with stepwise clustering and preferred sampling on adjusted Euclidean distances. Every combining scheme constructed eight rice core collections (225, 200, 175, 150, 125, 100, 75 and 50). The results showed that the QTT data was the best in constructing a core collection as indicated by the genetic diversity of core collections. A core collection constructed only on the information of QT1 could not represent the initial collection effectively. QTT should be used together to construct a productive core collection. | LI Xiao-ling LU Yong-gen LI Jin-quan XU Hai-ming Muhammad Qasim SHAHID | 2011 | Rice science2011,18,1: | 6 |
| 7 | 巴基斯坦的农业发展:政府干预措施和农产品增长模式显示文摘巴基斯坦的农业产值占国内生产总值的1/5强.全国有近1/2的人口从事农业生产。巴基斯坦农业产量有了4~6倍的增长,这归功于农业投入的优化、生产技术的改善和技术效率的提高。本文讨论了巴基斯坦农业干预政策、农业补贴、农产品收购价格,灌溉用水政策和农业信贷,分析了过去50年间,扩大面积、提高单产等措施对主要农作物产量的增长所发挥的作用。巴基斯坦充分地享有在此基础上获得的成果,但仍旧落后于其他国家的水平和未来粮食的需求。政府需根据农民的期望和要求制定政策.简化实施流程.尤其要改善农民的适应能力和管理技能。 | Muhammad Qasim Manzoor 陈珏颖 唐娅楠 刘合光 | 2013 | 世界农业2013,,7: | 5 |
| 8 | 新型四倍体水稻创制及其杂种优势利用研究进展显示文摘新型四倍体水稻是本研究团队创制的一类高育性多倍体水稻新种质,携带有多种优异基因。该类材料与同源四倍体水稻杂交获得的杂种F_(1)产量优势明显,具有应用前景。本文首先概述了同源四倍体水稻的研究进展,并重点阐述了新型四倍体水稻创制过程、主要特点、杂种优势表现及其涉及的分子遗传机理,最后提出未来研究的思路及需要解决的问题,为加快新型四倍体水稻在多倍体水稻育种中的利用提供依据。 | 刘向东 吴锦文 SHAHID Muhammad Qasim | 2022 | 生物技术通报2022,38,1: | 3 |
| 9 | Identification of an S5^n allele in Oryza rufipogon Griff. and its effect on embryo sac fertility显示文摘Oryza rufipogon exhibits abundant genetic diversity and contains many elite genes. In this work, a total of 441 accessions of O. rufipogon were genetically examined using the functional marker S5n, revealing that 18 accessions carried the S5n allele with a heterozygous genotype (S5nS5i/j). Of these accessions, 14 were from Guangdong Province, 2 from Guangxi Zhuang Autonomous Region, 1 from Hainan Province and 1 from Jiangxi Province. Further sequence analysis spanning both sides of the deletion in S5n allele of O. rufipogon confirmed that this allele is identical with that of 02428, a wide-compatibility variety of domesticated rice. The segregation ratio of the 3 genotypes (S5iS5i/S5jS5j:S5nS5i/j:S5nS5n) among 15 self-bred progenies of O. rufipogon significantly deviated from the Mendelian expectation (1:2:1) in that the proportion of plants exhibiting S5n heterozygous and homozygous genotypes was much lower in the progeny. Sequence analysis of full-length S5n alleles indicated that a few base pairs were different between O. rufipogon and O. sativa, and it was presumed that S5n may be an ancient allele. The fertility of the embryo sac in plants with an S5n heterozygous genotype was low, suggesting the existence of other genes controlling embryo sac fertility in the wild rice. | SHAHID Muhammad Qasim | 2010 | Chinese Science Bulletin2010,55,13: | 3 |
| 10 | A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles显示文摘Phylogenetic studies of Carex L.(Cyperaceae)have consistently demonstrated that most subgenera and sections are para-or polyphyletic.Yet,taxonomists continue to use subgenera and sections in Carex classification.Why?The Global Carex Group(GCG)here takes the position that the historical and continued use of subgenera and sections serves to(i)organize our understanding of lineages in Carex,(ii)create an identification mechanism to break the~2000 species of Carex into manageable groups and stimulate its study,and(iii)provide a framework to recognize morphologically diagnosable lineages within Carex.Unfortunately,the current understanding of phylogenetic relationships in Carex is not yet sufficient for a global reclassification of the genus within a Linnean infrageneric(sectional)framework.Rather than leaving Carex classification in its current state,which is misleading and confusing,we here take the intermediate steps of implementing the recently revised subgeneric classification and using a combination of informally named clades and formally named sections to reflect the current state of our knowledge.This hybrid classification framework is presented in an order corresponding to a linear arrangement of the clades on a ladderized phylogeny,largely based on the recent phylogenies published by the GCG.It organizes Carex into six subgenera,which are,in turn,subdivided into 62 formally named Linnean sections plus 49 informal groups.This framework will serve as a roadmap for research on Carex phylogeny,enabling further development of a complete reclassification by presenting relevant morphological and geographical information on clades where possible and standardizing the use of formal sectional names. | Eric H.Roalson Pedro Jiménez-Mejías Andrew L.Hipp Carmen Benítez-Benítez Leo P.Bruederle Kyong-Sook Chung Marcial Escudero Bruce A.Ford Kerry Ford Sebastian Gebauer Berit Gehrke Marlene Hahn Muhammad Qasim Hayat Mathias H.Hoffmann Xiao-Feng Jin Sangtae Kim Isabel Larridon Étienne Léveillé-Bourret Yi-Fei Lu Modesto Luceño Enrique Maguilla Jose IgnacioMárquez-Corro Santiago Martín-Bravo Tomomi Masaki Mónica Míguez Robert F.C.Naczi Anton A.Reznicek Daniel Spalink Julian R.Starr Uzma Tamara Villaverde Marcia J.Waterway Karen L.Wilson and Shu-Ren Zhang | 2021 | Journal of Systematics and Evolution2021,59,4: | 3 |
| 11 | Optical spin-symmetry breaking for high-efficiency directional helicity-multiplexed metaholograms显示文摘Helicity-multiplexed metasurfaces based on symmetric spin–orbit interactions (SOIs) have practical limits because they cannot provide central-symmetric holographic imaging. Asymmetric SOIs can effectively address such limitations, with several exciting applications in various fields ranging from asymmetric data inscription in communications to dual side displays in smart mobile devices. Low-loss dielectric materials provide an excellent platform for realizing such exotic phenomena efficiently. In this paper, we demonstrate an asymmetric SOI-dependent transmission-type metasurface in the visible domain using hydrogenated amorphous silicon (a-Si:H) nanoresonators. The proposed design approach is equipped with an additional degree of freedom in designing bi-directional helicity-multiplexed metasurfaces by breaking the conventional limit imposed by the symmetric SOI in half employment of metasurfaces for one circular handedness. Two on-axis, distinct wavefronts are produced with high transmission efficiencies, demonstrating the concept of asymmetric wavefront generation in two antiparallel directions. Additionally, the CMOS compatibility of a-Si:H makes it a cost-effective alternative to gallium nitride (GaN) and titanium dioxide (TiO2) for visible light. The cost-effective fabrication and simplicity of the proposed design technique provide an excellent candidate for high-efficiency, multifunctional, and chip-integrated demonstration of various phenomena. | Muhammad Ashar Naveed Muhammad Afnan Ansari Inki Kim Trevon Badloe Joohoon Kim Dong Kyo Oh Kashif Riaz Tauseef Tauqeer Usman Younis Murtaza Saleem Muhammad Sabieh Anwar Muhammad Zubair Muhammad Qasim Mehmood Junsuk Rho | 2021 | Microsystems & Nanoengineering2021,7,2: | 3 |
| 12 | Molecular evolution of rice S_5~n and functional comparison among different sequences显示文摘The wide compatibility gene, S 5 n , can overcome embryo sac sterility between indica and japonica subspecies of rice. Therefore, it is very important to characterize the features of the S 5 n sequence to reveal the origin and evolution of S 5 n . In this paper, 26 cultivated rice haplotypes and 22 wild rice accessions harboring S 5 n were used to sequence S 5 n . The results showed that 15 genotypes among the 48 materials were fully consistent with control cultivar 02428 (CK). The other 33 accessions had different degrees of variation in the S 5 n sequence. Variations in the coding region mainly occurred in the second exon and eight materials showed a 10-bp deletion at 1710–1719 bp, including wild (O. nivara) and cultivated rice, such as IRW501 and Yuetai B. S 5 n sequences were not biased and evolved neutrally. The 48 materials could be divided into 4 categories using a phylogenetic tree of the amino acid sequences. Most of the wild rice clustered together, and the cultivated rice clustered into another group. Eight cultivated rice and O. nivara (wild rice) clustered in another group, which were found to lack 10 consecutive bases in exon 2. Eight rice varieties with high numbers of differences in their S 5 n coding regions were crossed with testers (typically indica and japonica) to produced test cross F 1 populations. The F 1 s were examined for their ability to overcome indica-japonica hybrid sterility. The result showed that the embryo sac fertility of S 5 n -containing hybrids increased significantly compared with control hybrids, but there were no differences among the materials with divergent sequences, indirectly proving that S 5 n is a non-functional gene. | TONG JingFei LI YanHong YANG YouXin SHAHID Muhammad Qasim CHEN ZhiXiong WANG Lan LI JinQuan LIU XiangDong LU YongGen | 2011 | Chinese Science Bulletin2011,56,19: | 2 |
| 13 | Text Sentiment Analysis Using Frequency-Based Vigorous Features显示文摘Sentiment Analysis, an un-abating research area in text mining, requires a computational method for extracting useful information from text. In recent days, social media has become a really rich source to get information about the behavioral state of people(opinion) through reviews and comments. Numerous techniques have been aimed to analyze the sentiment of the text, however, they were unable to come up to the complexity of the sentiments. The complexity requires novel approach for deep analysis of sentiments for more accurate prediction. This research presents a three-step Sentiment Analysis and Prediction(SAP) solution of Text Trend through K-Nearest Neighbor(KNN). At first, sentences are transformed into tokens and stop words are removed. Secondly, polarity of the sentence, paragraph and text is calculated through contributing weighted words, intensity clauses and sentiment shifters. The resulting features extracted in this step played significant role to improve the results. Finally, the trend of the input text has been predicted using KNN classifier based on extracted features. The training and testing of the model has been performed on publically available datasets of twitter and movie reviews. Experiments results illustrated the satisfactory improvement as compared to existing solutions. In addition, GUI(Hello World) based text analysis framework has been designed to perform the text analytics. | Abdul Razzaq Muhammad Asim Zulqrnain Ali Salman Qadri Imran Mumtaz Dost Muhammad Khan Qasim Niaz | 2019 | China Communications2019,16,12: | 2 |
| 14 | Regolith thickness modeling using a GIS approach for landslide distribution analysis, NW Himalayas显示文摘Regolith thickness is considered as a contributing factor for the occurrence of landslides.Although, mostly it is ignored because of complex nature and as it requires more time and resources for investigation. This study aimed to appraise the role of regolith thickness on landslide distribution in the Muzaffarabad and surrounding areas, NW Himalayas.For this purpose regolith thickness samples were evenly collected from all the lithological units at representative sites within different slope and elevation classes in the field. Topographic attributes(slope, aspect, drainage, Topographic Wetness Index,elevation and curvature) were derived from the Digital Elevation Model(DEM)(12.5 m resolution).Arc GIS Model Builder was used to develop the regolith thickness model. Stepwise regression technique was used to explore the spatial variation of regolith thickness using topographic attributes and lithological units. The derived model explains about 88% regolith thickness variation. The model was validated and shows good agreement(70%) between observed and predicted values. Subsequently, the derived regolith model was used to understand the relationship between regolith thickness and landslide distribution. The analysis shows that most of the landslides were located within 1-5 m regolith thickness. However, landslide concentration is highest within 5-10 m regolith thickness, which shows that regolith thickness played a significant role for the occurrence of landslide in the studied area. | Muhammad BASHARAT Masood QASIM Muhammad SHAFIQUE Nasir HAMEED Muhammad Tayyib RIAZ Muhammad Rustam KHAN | 2018 | Journal of Mountain Science2018,15,11: | 2 |
| 15 | 水稻S5^n基因的分子进化及功能比较显示文摘S5n基因是克服水稻亚种间杂种胚囊不育性最主要因子之一,了解其序列特征对于揭示其起源或进化以及在分子育种上的应用具有重要意义.本文以48份携带有S5n的栽培稻品种和野生稻为材料,通过对其S5n的全序列进行测定,并选择在编码区序列差异较大的品种(系)与籼粳测验种进行测交组配F1,研究不同序列S5n在克服水稻亚种间杂种胚囊不育性效应的差异.结果表明,48份材料的DNA全序列与对照02428完全一致的有15份,其他33份存在不同程度的变异.变异位点,包括颠换、转换和缺失等,共有24个.编码区的变异主要发生在外显子2,其中变异最大的8份材料在1710~1719bp处缺失了10个碱基,包括尼瓦拉野稻IRW501和栽培稻品种粤泰B等.S5n序列变异没有偏向性,说明S5n是中性进化基因.通过构建S5n全序列及其编码区编码氨基酸系统NJ树,将48份材料归为4类,其中大部分的栽培稻聚成一类,普通野生稻聚成一类,8份缺失10个碱基的材料聚为一类,其他的材料聚成一类.利用WE-CLSM(whole-mount eosin B-staining confocal laser scanning microscopy)对测交F1的胚囊育性观察表明,不同S5n序列材料组配测交F1的胚囊育性均比对照明显增加,彼此间没有显著差异,显示它们都能克服亚种间的胚囊不育性,也间接证明S5n是功能缺失基因. | 仝静飞 李艳红 杨有新 陈志雄 王兰 李金泉 MUHAMMAD Qasim Shahid 刘向东 卢永根 | 2011 | 科学通报2011,56,15: | 2 |
| 16 | Status of tick distribution in Bangladesh, India and Pakistan显示文摘 | Srikant Ghosh Gyan Chand Bansal Suresh Chandra Gupta Debdatta Ray Muhammad Qasim Khan Hamid Irshad Md. Shahiduzzaman Ulrike Seitzer Jabbar S. Ahmed | 2007 | Parasitology Research2007,,2: | 2 |
| 17 | High Refractive Index Ti3O5 Films for Dielectric Metasurfaces显示文摘Ti_3 O_5 films are deposited with the help of an electron beam evaporator for their applications in metasurfaces.The film of subwavelength(632 nm) thickness is deposited on a silicon substrate and annealed at 400°C. The ellipsometr.y result shows a high refractive index above 2.5 with the minimum absorption coefficient in the visible region, which is necessary for high efficiency of transparent metasurfaces. Atomic force microscopy analysis is employed to measure the roughness of the as-deposited films. It is seen from micrographs that the deposited films are very smooth with the minimum roughness to prevent scattering and absorption losses for metasurface devices. The absence of grains and cracks can be seen by scanning electron microscope analysis, which is favorable for electron beam lithography. Fourier transform infrared spectroscopy reveals the transmission and reflection obtained from the film deposited on glass substrates. The as-deposited film shows high transmission above 60%,whieh is in good agreement with metasurfaces. | Sohail Abdul Jalil Mahreen Akram Gwanho Yoon Ayesha Khalid Dasol Lee Niloufar Raeis-Hosseini Sunae So Inki Kim Qazi Salman Ahmed Junsuk Rho Muhammad Qasim Mehmoo | 2017 | Chinese Physics Letters2017,34,8: | 2 |
| 18 | 同源四倍体水稻:低育性机理、改良与育种展望显示文摘同源四倍体水稻具有籽粒增大、营养成分增加和抗性增强等特点,但其育性普遍偏低,影响产量,无法直接应用。高育性四倍体水稻的成功创制解决了同源四倍体水稻育性偏低的瓶颈问题,然而该类型多倍体水稻能否在生产上推广应用需要进一步探讨。本文总结了同源四倍体水稻及其杂种F1育性偏低的细胞和分子遗传学机理研究的概况,重点介绍了高育性四倍体水稻的主要类型及最新的研究进展,最后提出未来利用新型四倍体水稻开展多代杂种优势等研究的设想,以期为水稻多倍体育种提供参考。 | 刘向东 吴锦文 陆紫君 Muhammad Qasim Shahid | 2023 | 遗传2023,45,9: | 2 |
| 19 | 普通野生稻中S5n基因的鉴定及其胚囊育性研究显示文摘普通野生稻具有丰富的遗传多样性,蕴藏许多有利基因.利用S5n功能性标记对来自中国14个不同居群的441份普通野生稻进行检测,发现其中18份可能携带有S5n基因,全部为杂合型,分别来自5个居群,包括广东遂溪13份,广西玉林2份,海南临高、广东高州和江西东乡各1份.进一步对这些材料S5座位可能存在的缺失及其两端DNA进行测序,发现全部材料缺失的DNA片段都与已知携带有S5n的品种02428一致,说明这18份材料确实存在S5n基因.对其中的15份材料自交一代进行基因型检测,检测到3种不同的基因型植株,其分离比(S5iS5i/S5jS5j:S5nS5i/j:S5nS5n)严重偏离1:2:1,其中S5n的杂合型和纯合型植株比例明显偏少,说明部分S5n配子可能无法正常受精.对4份代表性材料的S5座位进行全序列测定并与栽培稻比较,显示普通野生稻S5n序列出现少数碱基的差异.初步推测S5n基因在普通野生稻中已形成,属于古老的基因.对携带有S5n材料的胚囊育性进行研究,发现育性总体偏低,表明这些材料还可能存在除S5座位外决定胚囊育性其他座位的互作. | 魏常敏 王兰 杨有新 陈志雄 Muhammad Qasim Shahid 李金泉 刘向东 卢永根 | 2010 | 科学通报2010,55,11: | 2 |
| 20 | A novel FP- GA implementation of AES-128 using reduced res- idue of prime numbe based S-Box 显示文摘 | Muhammad H Rais Syed M Qasim | 2009 | IJCSNS International Journal of Computer Science and Net- work Security2009,9,9: | 1 |