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Genomic prediction of Fusarium head blight resistance in early stages using advanced breeding lines in hard winter wheat

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The Crop Journal 2022年第6期10卷 1695-1704页

作者： Jinfeng Zhang Harsimardeep s.Gill Navreet K.brar Jyotirmoy Halder shaukat Ali Xiaotian Liu Amy Bernardo Paul st.Amand Guihua Bai Upinder s.Gill Brent Turnipseed sunish K.sehgal Department of Agronomy Horticulture&Plant ScienceSouth Dakota State UniversityBrookingsSD 57007USA school of Computing Queen’s UniversityKingstonON K7L 3N6Canada UsDA-ARs Hard Winter Wheat Genetics Research UnitManhattanKS 66506USA Department of Plant Pathology North Dakota State UniversityFargoND 58108USA

Fusarium head blight(FHB),also known as scab,is a devastating fungal disease of wheat that causes significant losses in grain yield and *** inheritance and cumbersome phenotyping make FHB resistance a challenging trait for direct selection in wheat *** selection to predict FHB resistance traits has shown promise in several ***,we used univariate and multivariate genomic prediction models to evaluate the prediction accuracy(PA)for different FHB traits using 476elite and advanced breeding lines developed by south Dakota state University hard winter wheat breeding *** breeding lines were assessed for FHB disease index(DIs),and percentage of Fusarium damaged kernels(FDK)in three FHB nurseries in 2018,2019,and 2020(TP18,TP19,and TP20)and were evaluated as training populations(TP)for genomic prediction(GP)of FHB *** observed a moderate PA using univariate models for DIs(0.39 and 0.35)and FDK(0.35 and 0.37)using TP19 and TP20,respectively,while slightly higher PA was observed(0.41 for DIs and 0.38 for FDK)when TP19 and TP20(TP19+20)were combined to leverage the advantage of a large training *** GP with multivariate approach including plant height and days to heading as covariates did not significantly improve PA for DIs and FDK over univariate models,PA for DON increased by 20%using DIs,FDK,DTH as covariates using multi-trait model in ***,we used TP19,TP20,and TP19+20 in forward prediction to calculate genomic-estimated breeding values(GEBVs)for DIs and FDK in preliminary breeding lines at an early stage of the breeding *** observed moderate PA of up to 0.59 for DIs and 0.54for FDK,demonstrating the promise in genomic prediction for FHB resistance in earlier stages using advanced *** results suggest GP for expensive FHB traits like DON and FDK can facilitate the rejection of highly susceptible materials at an early stage in a breeding program.

关键词： FHB GBs Genomic selection Multi-trait models Winter wheat Wheat scab

Variation among poplar clones for growth and crown traits under field conditions at two sites of North-western India

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Journal of Forestry Research 2013年第1期24卷 61-67页

作者： G.P.s. Dhillon Avtar singh D.s. sidhu H.s. brar Department of Forestry & Natural Resources Punjab Agricultural UniversityLudhiana 141 004India. Punjab Agriculture University Regional Research StationBathinda151 001 PunjabIndia.

We evaluated the growth and crown traits of 36 poplar clones at two distinct agro-climatic regions of Punjab （Ludhiana and Bathinda） in northwestern India, following randomized block design with three replications and plot size of four trees. significant differences among clones （p〈0.001） were observed for diameter at breast height （DBH）, tree height, volume, crown width and number of branches under both the site conditions. Clones ‘G-3’, ‘25-N’ and ‘41-N’ at Ludhiana and ‘G-3’, ‘RD-01’ and ‘s7C8’ at Bathinda were found to be superior for volume production. All growth and crown traits registered significantly higher values at Ludhiana in comparison to those at Bathinda. Clone site interaction was also significant （p〈0.001）. For volume, clones ‘L-62/84’, ‘113520’, ‘25-N’ and ‘s4C2’ witnessed huge fluctuations in ranking between sites. The correlations between growth traits were positive and highly significant （p〈0.001） at both sites. The clonal mean heritability was moderate for DBH and volume both at Ludhiana （0.61–0.66） and Bathinda （0.61–0.62）. Across sites, the genetic advance was the highest for volume （49.76%） and the lowest （6.50%） in case of height.

关键词： clonal heritability clonal selection clone-site interaction genetic correlation Populus deltoides

sensitivity of Labile soil Organic Carbon Pools to Long-Term Fertilizer, straw and Manure Management in Rice-Wheat system

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Pedosphere 2015年第4期25卷 534-545页

作者： Dinesh K.BENBI Kiranvir brar Amardeep s.TOOR shivani sHARMA Department of soil science Punjab Agricultural University

Labile soil organic carbon(sOC) pools, estimated through chemical fractionation techniques, are considered sensitive indicators of management-induced changes in quality and composition of soil organic matter. Although the impacts of organic manure and crop residue applications on C sequestration in rice-wheat system are fairly well documented, their influence on labile sOC pools is relatively less known. Impacts of organic manure, rice straw, and inorganic fertilizer nitrogen(N) applications on soil total organic carbon(TOC)and sOC pools including water-extractable organic C(WEOC), hot water-soluble organic C(HWOC), potassium permanganateoxidizable organic C(KMnO 4-C), microbial biomass C(MBC), mineralizable organic C(Cmin), and the oxidizable fractions of decreasing oxidizability(easily-oxidizable, oxidizable, and weakly-oxidizable) were investigated in an 11-year field experiment under rice-wheat system. The field experiment included treatments of different combinations of farmyard manure, rice straw, and fertilizer N application rates, with C inputs estimated to be in the range from 23 to 127 Mg ha-1. After 11 years of experiment, WEOC,HWOC, and KMnO 4-C were 0.32%–0.50%, 2.2%–3.3%, and 15.0%–20.6% of TOC, respectively. The easily-oxidizable, oxidizable,and weakly-oxidizable fractions were 43%–57%, 22%–27%, and 10%–19% of TOC, respectively. The applications of farmyard manure and rice straw improved WEOC, HWOC, KMnO 4-C, easily-oxidizable fraction, Cmin, and MBC, though the rates of change varied considerably from-14% to 145% and-11% to 83% of TOC, respectively. At the C input levels between 29 and 78 Mg C ha-1during the 11-year period, the greatest increase was observed in WEOC and the minimum in KMnO 4-C. Water-extractable organic C exhibited a relatively greater sensitivity to management than TOC, suggesting that it may be used as a sensitive indicator of management-induced changes in soil organic matter under rice-wheat system. All the other labile sOC pools

关键词：土壤有机碳库水稻秸秆有机肥敏感性管理长期施肥系统小麦

Genetic Diversity Based on Allozyme Alleles of Chinese Cultivated Rice

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Agricultural sciences in China 2007年第6期6卷 641-646页

作者： TANG sheng-xiang WEI Xing-hua JIANG Yun-zhu D s brar G sKhush state Key Laboratory of Rice Biology China National Rice Research Institute Hangzhou 310006 P.R.China International Rice Research Institute Manila Philippines

Genetic diversity was analyzed with 6 632 core rice cultivars selected from 60 282 Chinese rice accessions on the basis of 12 allozyme loci, Pgil, Pgi2, Amp1, Amp2, Amp3, Amp4, sdhl, Adhl, Estl, Est2, Est5 and Est9, by starch gel electrophoresis. Among the materials examined, 52 alleles at 12 polymorphic loci were identified, which occupied 96.3% of 54 alleles found in cultivated germplasm of O. sativa L. The number of alleles per locus ranged from 2 to 7 with an average of 4.33. The gene diversity （He） each locus varied considerably from 0.017 for Amp4 to 0.583 for Est2 with an average gene diversity （Ht） 0.271, mid shannon-Wiener index from 0.055 to 0.946 with an average of 0.468. The degree of polymorphism （DP） was in a range from 0.9 to 46.9% with an average of 21.4%. It was found that the genetic diversity in japonica （Keng） subspecies was lower in terms of allele＇s number, Ht and s-W index, being 91.8, 66.2 and 75.7% of indica （Hsien） one, respectively. significant genetic differentiation between indica and japonica rice has been appeared in the loci Pgil, Amp2, Pgi2, and Est2, with higher average coefficient of genetic differentiation （Gst） 0.635, 0.626, 0.322 and 0.282, respectively. Except less allele number per locus （3.33） for modern cultivars, being 76.9% of landraces, the Ht and s-W index showed in similar between the modem cultivars and the landraces detected. In terms of allozyme, the rice cultivars in the southwest Plateau and Central China have richer genetic diversity. The present study reveals again that Chinese cultivated rice germplasm has rich genetic diversity, showed by the allozyme allele variation.

关键词： cultivated rice allozyme analysis genetic diversity genetic differentiation

Bietti’s crystalline dystrophy in an African American patient: an unusual racial demographic for a condition more common in individuals of East Asian descent

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International Journal of Ophthalmology(English edition) 2021年第8期14卷 1291-1292页

作者： Virang Kumar Vikram brar Jordyn Prell Ann Jewell Natario Couser Virginia Commonwealth University school of Medicine RichmondVA 23298USA Department of Ophthalmology Virginia Commonwealth University School of MedicineRichmondVA 23298USA Department of Human and Molecular Genetics Virginia Commonwealth University School of MedicineRichmondVA 23298USA Department of Pediatrics Virginia Commonwealth University School of MedicineRichmondVA 23298USA

Dear Editor,The study outlining the manifestations of Bietti’s crystalline dystrophy(BCD)in five Chinese patients offered insights into common disease-causing variants associated with Chinese patients as well as a novel mutation[1].This genetic condition is commonly reported among East Asian populations and to some extent Mediterranean populations[2].

关键词： dystrophy crystalline condition

Colonialism- a policy of subjugation and the Modern African Fiction

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Colonialism- a policy of subjugation and the Modern African ...

Molecular and Cytogenetic Characterization of an Oryza officinalis-O. sativa Chromosome 4 Addition Line and Its Progenies

International Conference on Intelligent Computational systems(ICICs’2012);International Conference on Mechanical,Automotive and Materials Engineering(ICMAME’2012);International Conference on Electronics,Biomedical Engineering and its Applications(ICEBEA’2012);International Conference on Ecological,Environmental and Biological sciences(ICEEBs’2012);International Conference on Business,Economics,Management and Behavioral sciences (ICBEMBs’2012);International Conference on Applied Mathematics and Pharmaceutical sciences(ICAMPs’2012)

作者： B.s.brar Ajinder Kaur brar Applied sciences department of Adesh Institute of Engineering and Technology Department of Applied sciences Government College Derabassi

Africa, the world’s second largest continent has witnessed the most far-reaching socio-political transformations in the present century. It emerged as a community of independent nations and a great force in world politics in the wake of World War II that the spirit of nationalism brought here the political emancipation, economic growth and social-cultural revolution;being a part of the process of decolonization that was taking place in many parts of the world. The modern African writers played a significant role in boosting up the rebel spirit of their people against colonial powers. Modern African novel has become a historical document that projected the struggle for socio-cultural freedom.

关键词： Colonialism Imperialism Modern African Fiction History Culture Traditions Literature.

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Molecular and Cytogenetic Characterization of an Oryza offic...

LITTLEsEED CANARY GRAss REsIsTANCE TO IsOPROTURON IN INDIA: RATIONALE AND APPROACHEs

湖北省遗传学会、江西省遗传学会2006年学术年会暨学术讨论会

作者： D．s brar Plant breeding Genetics & Biochemistry Division International Rice Research Institute P.O. Box 933 Manila Philippines

The wild species Oryza officinalis Wall ex Watt (2n = 24, CC) is a valuable genetic resource for rice (O. sativa L., 2n=24, AA) breeding and genomics research. Genomic in situ hybridization (GIsH) and molecular approaches were used to determine the nature and composition of the additional chromosome in a monosomic alien addition line (MAAL) of O. officinalis and its backcross progenies. The extra wild species chromosome in the MAAL (2n=2x=25) was a mosaic one, comprising of the long arm of chromosome 4 from O. officinalis and the short arm from O. sativa. Comparative analysis showed that O. sativa and O. officinalis shared high synteny of restriction fragment length polymorphism (RFLP) markers and low synteny of simple sequence repeat (ssR) markers. A DNA methylation alteration was revealed at C619 in the MAAL and progenies. Analysis of progenies of the MAAL indicated that introgression segments were small in size and introgression was not evenly distributed along the long arm. One recombination hot spot between C513 and RG177 was identified, which is in a gene-rich region.

关键词： Molecular and Cytogenetic Characterization of an Oryza officinalis-O sativa Chromosome 4 Addition Line and Its Progenies

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LITTLESEED CANARY GRASS RESISTANCE TO ISOPROTURON IN INDIA: ...

The ⅩⅤth International Plant Protection Congress

作者： G.MAHAJAN L.s.brar Asstt.Agronomist Punjab Agricultural University Regional Research Station Gurdaspur- 143 521 Punjab India Head and sr.Agronomist （Weed Control） Department of Agronomy Punjab Agricultural University Ludhiana India

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计算机外围设备中镁合金铸件的化学镀镍

材料保护 1990年第5期23卷 41-42页

作者： P.B Narayan A.s.brar 黄舜华 Imprimis/Control Data Corp. 781 Computer Ave Minneapolis MN 55435. Imprimis/Control Data Corp. 781 Computer Ave Minneapolis MN 55435.

镁合金的重量轻而且强度好,所以在磁盘传动工业中获得了广泛的应用。镁是一种活泼的金属而且不会产生一层钝化的氧化物膜。通常都是采用铬酸钝化法或涂有机复盖层来保护镁合金防止腐蚀。但是现代磁盘传动装置所规定的湿度和温度条件下,... 详细信息

镁合金的重量轻而且强度好,所以在磁盘传动工业中获得了广泛的应用。镁是一种活泼的金属而且不会产生一层钝化的氧化物膜。通常都是采用铬酸钝化法或涂有机复盖层来保护镁合金防止腐蚀。但是现代磁盘传动装置所规定的湿度和温度条件下,它们的防蚀效果并不理想。磁盘驱动装置有着十分严格的清洁要求,因为即使极微量的碳氢化合物或颗粒的污染,均会给磁头和磁盘的界面带来有害的影响。金属镀层(例如化学镀镍)就不一样,它对潮湿的吸附力极低,抗蚀能力极好,很少有颗粒脱落,复盖层均匀一致而且结合力良好。本文将介绍我们在镁铸件上面镀复化学镀镍和其它镀层的经验。

关键词：镁合金铸件化学镀镍镀镍