检索结果-南通市图书馆

Genome-wide prediction in a hybrid maize population adapted to Northwest China

The Crop Journal 2020年第5期8卷 830-842页

作者： Guoliang Li Yuan Dong Yusheng Zhao Xiaokang Tian Tobias Würschum Jiquan Xue Shaojiang Chen Jochen C.Reif Shutu Xu Wenxin Liu National Maize improvement Center of China Key Laboratory of Crop Heterosis and Utilization(MOE)China Agricultural UniversityBeijing 100193China Key Laboratory of Biology and Genetic improvement of Maize in Arid Area of Northwest Region(Ministry of Agriculture) College of AgronomyNorthwest A&F UniversityYangling 712100ShaanxiChina department of Breeding research Leibniz Institute of Plant Genetics and Crop Plant Research(IPK)06466 Stadt SeelandGermany Institute of plant Breeding Seed Science and Population GeneticsUniversity of Hohenheim70599 StuttgartGermany

Genome-wide prediction is a promising approach to boost selection gain in hybrid *** main objective was to evaluate the potential and limits of genome-wide prediction to identify superior hybrid combinations adapted to Northwest China.A total of 490 hybrids derived from crosses among 119 inbred lines from the Shaan A and Shaan B heterotic pattern were used for genome-wide prediction of ten agronomic *** tested eight different statistical prediction models considering additive(A)effects and in addition evaluated the impact of dominance(D)and epistasis(E)on the prediction *** five-fold cross validation,we show that the average prediction ability ranged from 0.386 to 0.794 across traits and *** parametric methods,*** regression,LASSO,Elastic Net,Bayes B,Bayes C and reproducing kernel Hilbert space(RKHS)approach,displayed a very similar prediction ability for each trait and two non-parametric methods(random forest and support vector machine)had a higher prediction performance for the trait rind penetrometer resistance of the third internode above ground(RPR_TIAG).The models of A+D RKHS and A+D+E RKHS were slightly better for predicting traits with a relatively high non-additive *** trait-specific markers into the A+D RKHS model improved the prediction ability of grain yield by 3%,from 0.528 to *** all 6328 potential hybrids,selection of the top 44 hybrids would lead to a 6%increase in grain yield compared with Zhengdan 958,a commercially successful hybrid *** conclusion,our results substantiate the value of genome-wide prediction for hybrid breeding and suggest dozens of promising single crosses for developing high-yielding hybrids for Northwest China.

关键词： breeding prediction forest

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Estimation of Genetic Divergence and Character Association Studies in Local and Exotic Diversity Panels of Soybean(Glycine max L.)Genotypes

引用

Phyton-International Journal of Experimental Botany 2023年第6期92卷 1887-1906页

作者： Syed Ali Zafar Muhammad Aslam Haroon Zaman Khan Sehrish Sarwar Rao Saad Rehman Mariam Hassan Ramala Masood Ahmad Rafaqat AGill Basharat Ali Ibrahim Al-Ashkar Abdullah Ibrahim Md Atikur Rahman Ayman El Sabagh Oilseeds research Institute Ayub Agricultural Research InstituteFaisalabadPakistan department of plant Breeding and Genetics University of AgricultureFaisalabadPakistan department of Agronomy University of AgricultureFaisalabadPakistan College of plant Science and Technology Huazhong Agricultural UniversityWuhanChina Key Laboratory of Biology and Genetic improvement of Oil Crops The Ministry of Agriculture and Rural AffairsOil Crops Research Institute of Chinese Academy of Agricultural SciencesWuhan430062China department of Agricultural Engineering Khwaja Fareed University of Engineering and Information TechnologyRahim Yar KhanPakistan department of plant Production College of Food and Agriculture SciencesKing Saud UniversityRiyadhSaudi Arabia Grassland and Forage Division National Institute of Animal ScienceRural Development AdministrationCheonanKorea department of Agronomy Faculty of AgricultureUniversity of KafrelsheikhKafr ElsheikhEgypt

The availability of favorable genetic diversity is a thriving vitality for the success of a breeding *** provides a firm basis of selecting superior breeding lines for the development of high yielding crop *** this context,present investigation aimed to generate information on genetic divergence and character association in a diversity panel of 123 local and exotic soybean *** of variance revealed significant response of the evaluated genotypes based on studied *** depicted the probability of selecting desirable soybean genotypes by focusing on character association studies and genetic diversity *** analysis revealed that seed yield per plant showed high positive correlation with 100-seed weight followed by pods per plant and plant ***,path coefficient analysis exposed that pods per plant had maximum direct contribution in seed yield per plant followed by 100-seed weight,days to flowering and SPAD *** named“G-10”showed maximum yield per plant followed by 24607,G-52,24593,Arisoy,24566,17426,A-3127,24570 and *** diversity analysis grouped the evaluated germplasm into 17 *** clusters showed zero intra-cluster variability;while inter-cluster divergence ranged from 9.00 to *** V showed maximum inter-cluster distance with cluster XII followed by that of between V and ***,cluster IV with superior genotypes(G-10,24607,24593 and 24566),VI(17426 and 24567),XIII(24570)and X(Arisoy and G-52)showed above mean values for most of the studied ***,the results of hybridization between the superior genotypes of these cluster pairs might be useful for soybean breeding with improving agronomic traits and adaptability.

关键词： Genetic variability correlation path analysis genetic diversity analysis soybean selective breeding

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pollen self-elimination CRISPR–Cas genome editing prevents transgenic pollen dispersal in maize

引用

plant Communications 2023年第6期4卷 212-215页

作者： Honglin Wang Xiantao Qi Jinjie Zhu Changlin Liu Hongwei Fan Xuecai Zhang Xinhai Li Qin Yang Chuanxiao Xie Institute of Crop Science Chinese Academy of Agricultural Sciences(CAAS)Beijing 100081China College of Agronomy Northwest A&F UniversityYangling 712100China International Maize and Wheat improvement Center(CIMMYT) EI BatanMexico Hainan Yazhou Bay seed Lab SanyaHainan Province 572024 China Henan Jinyuan seed Industry Co. Ltd.ZhengzhouHenan ProvinceChina

Dear Editor,Genome editing with clustered regularly interspaced short palindromic repeats(CRISPR)–CRISPR-associated nuclease(Cas)-mediated technologies have revolutionized basic plant science and crop genetic improvement(Chen et al.,2019).Stable genetic transformation of CRISPR–Cas cassette(s)is the main approach to genome editing in *** many sexually reproducing plants,a major concern is the dispersal of genetically modified elements through pollen(Devos et al.,2005).Maize(Zea mays L.).

关键词： CRISPR dispersal editing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agro-Morphological Characterization and Genetic Dissection of Linseed(Linum usitatissimum L.)Genotypes

引用

Phyton-International Journal of Experimental Botany 2022年第8期91卷 1721-1743页

作者： A.K.M.Golam Sarwar Md.Sabibul Haque Md.Ekramul Haque Md.Amir Hossain Md.Golam Azam Md.Nesar Uddin Eldessoky S.Dessoky Mahmoud A.Basry Md.Alamgir Hossain department of Crop Botany Bangladesh Agricultural UniversityMymensingh2202Bangladesh Spices research Sub-Centre Bangladesh Agricultural Research InstituteLalmonirhat5500Bangladesh department of Genetics and plant Breeding Agricultural UniversityMymensingh2202Bangladesh Pulse research Centre Bangladesh Agricultural Research InstituteIshurdi6620Bangladesh department of Biology College of ScienceTaif UniversityTaif21944Saudi Arabia department of plant Molecular Biology AGERIAgricultural Research CenterGiza12619Egypt

Linseed is a multipurpose crop and the crop needs further improvement to increase production and yield due to its high value and *** study aimed to assess the extent and pattern of genetic variability of forty linseed genotypes based on diverse agro–morphological and yield *** field experiment was conducted following a Randomized Complete Block Design with three *** germplasm showed a wide range of phenotypic expression,genetic variability and heritability for 30 studied traits.A low to high phenotypic coeffi-cient of variation(PCV)and genotypic coefficient of variation(GCV)were *** lowest genotypic(σ2 g)and phenotypic variances(σ2 p)were found in capsule diameter(CD),length of calyx(LC),capsule length(CL),seed length(SL),and seed breadth(SB).High broad-sense heritability(h2 b)with high genetic advance as a percentage of mean(GAM)were observed in days to germination started(DGS),days to 80%emergence(DE),plant height at 28 and 40 DAS,number of flowers(NFPP),filled capsules(NFCPP)and yield per plant(YPP)indicating additive gene action exists for these *** cluster analysis separated 40 genotypes into five clusters,where Clusters I to V assembled with 13,4,4,5 and 14 genotypes,*** yield and yield attributes,Cluster-IV(G3,G4,G6,G10 and G31)genotypes showed promising while,Cluster-II(G2,G16,G35,G36)and Cluster-III(G1,G33,G39 and G40)genotypes were dominant on plant morphological *** on principal component analysis(PCA),few characters such as YPP,NFPP,NFCPP,days to first flowering and capsule formation,early emergence,days to branch initiation and plant heights at different growth stages revealed important and effective traits for consideration in the selection of linseed breeding programs.

关键词： Genetic variability heritability genetic advance principal component analysis hierarchical clustering linseed

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genome-wide prediction for hybrids between parents with distinguished difference on exotic introgressions in Brassica napus

引用

The Crop Journal 2021年第5期9卷 1169-1178页

作者： Dandan Hu Yusheng Zhao Jinxiong Shen Xiangxiang He Yikai Zhang Yong Jiang Rod Snowdon Jinling Meng Jochen C.Reif Jun Zou National Key Laboratory of Crop Genetic improvement College of Plant Science&TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina department of Breeding research Leibniz Institute of Plant Genetics and Crop Plant Research(IPK)Stadt Seeland 06466Germany department of plant Breeding IFZ Research Centre for BiosystemsLand Use and NutritionJustus Liebig UniversityGiessen 35392Germany

Extensive exotic introgression could significantly enlarge the genetic distance of hybrid parental populations to promote strong *** goal of this study was to investigate whether genome-wide prediction can support pre-breeding in populations with exotic *** evaluated seed yield,seed yield related traits and seed quality traits of 363 hybrids of Brassica napus (AACC) derived from two parental populations divergent on massive exotic introgression of related species in three *** hybrids presented strong heterosis on seed yield,which was much higher than other investigated *** genomic best linear unbiased prediction models considering the exotic introgression and different marker effects (additive,dominance,and epistatic effects) were constructed to test the prediction ability for different traits of the *** analysis showed that the trait complexity,exotic introgression,genetic relationship between the training set and testing set,training set size,and environments affected the prediction *** models with best prediction ability for different traits ***,relatively high prediction ability (e.g.,0.728 for seed yield) was also observed when the simplest models were used,excluding the effects of the special exotic introgression and epistasis effect by5-fold cross validation,which would simplify the prediction for the trait with complex architecture for hybrids with exotic *** results provide novel insights and strategies for genome-wide prediction of hybrids between genetically distinct parent groups with exotic introgressions.

关键词： Hybrid Genome-wide prediction Exotic introgression Brassica napus Heterosis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Genome architecture and tetrasomic inheritance of autotetraploid potato

引用

Molecular plant 2022年第7期15卷 1211-1226页

作者： Zhigui Bao Canhui Li Guangcun Li Pei Wang Zhen Peng Lin Cheng Hongbo Li Zhiyang Zhang Yuying Li Wu Huang Mingwang Ye Daofeng Dong Zhukuan Cheng Peter VanderZaag Evert Jacobsen Christian W.B.Bachem Suomeng Dong Chunzhi Zhang Sanwen Huang Qian Zhou Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China Key Laboratory for Potato Biology of Yunnan Province The CAAS-YNNU-YINMORE Joint Academy of Potato ScienceYunnan Normal UniversityKunming 650500China Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Tuber and Root CropMinistry of Agriculture and Rural AffairsBeijing100081.China plant Breeding Wageningen University and ResearchDroevendaalsesteeg 16708 PB Wageningenthe Netherlands Vegetable research Institute Shandong Academy of Agricultural SciencesJinan 250100China State Key Lab of plant Genomics Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China Sunrise Potato Storage Ltd. AllistonON L9R1V3Canada department of plant Pathology and Key Laboratory of plant Immunity Nanjing Agricultural UniversityNanjing 210095China Peng Cheng Laboratory Shenzhen 518055China

Potato(Solanum tuberosum)is the most consumed non-cereal food *** commercial potato cultivars are autotetraploids with highly heterozygous genomes,severely hampering genetic analyses and *** leveraging the state-of-the-art sequencing technologies and polyploid graph binning,we achieved a chromosome-scale,haplotype-resolved genome assembly of a cultivated potato,Cooperation-88(C88).lntra-haplotype comparative analyses revealed extensive sequence and expression differences in this tetraploid *** identified haplotype-specific pericentromeres on chromosomes,suggesting a distinct evolutionary trajectory of potato homologous ***,we detected double reduction events that are unevenly distributed on haplotypes in 1021 of 1034 selfing progeny,a feature of autopolyploid *** distinguishing maternal and paternal haplotype sets in C88,we simulated the origin of heterosis in cultivated tetraploid with a survey of 3110 tetra-allelic loci with deleterious mutations,which were masked in the heterozygous condition bytwo *** study provides insights into the genomic architecture of autopolyploids and will guide their breeding.

关键词： potato genome polyploid genome haplotype-resolved assembly haplotype diversity potato centromere

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

OS1 functions in the allocation of nutrients between the endosperm and embryo in maize seeds

引用

Journal of Integrative plant Biology 2019年第6期61卷 706-727页

作者： Weibin Song Jinjie Zhu Haiming Zhao Yingnan Li Jiangtao Liu Xiangbo Zhang Liangliang Huang Jinsheng Lai State Key Laboratory of Agrobiotechnology and National Maize improvement Center Department of Plant Genetics and Breeding ChinaAgricultural University

Uncovering the genetic basis of seed develop-ment will provide useful tools for improving both crop yield and nutritional value, However, the genetic regulatory networks of maize (Zea mays) seed development remain largely unknown. The maize opaque endosperm and small germ 1 (osl) mutant has opaque endosperm and a small embryo,Here, we cloned OSi1 and show that it encodes a putative transcription factor containing an RWP-RK domain-Transcriptional analysis indicated that OSi1 expression is elevated in early endosperm development, especially in the basal endosperm transfer layer (BETL), conducting zone (CZ), and central starch endospcrm (CSE) cells. RNA sequencing (RNA-Seq) analysis of the osi mutant revealed sharp downregulation of certain genes in specific cell types, including ZmMRP-1 and Megl in BETL cells and a majority of zein-and starch-related genes in CSE cells. Using a haploid induction system, we show that wild-type endosperm could rescue the smaller size of osi embryo, which suggests that nutrients are allocated by tho wild type endosperm. Therefore, our dsta imply that the network regulated by 051 accomplishes a key step in nutrient allocation between endosperm and embryo within maize seeds. Identification of this network will help uncover the mechanisms regulating the nutritional balance between endosperm and embryo.

关键词： 0S1 functions the allocation of nutrients between the endosperm and embryo in maize seeds^FA

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Non-dormant Axillary Bud 1 regulates axillary bud outgrowth in sorghum

引用

Journal of Integrative plant Biology 2018年第10期60卷 938-955页

作者： Jun Chen Limin Zhang Mengjiao Zhu Lijie Han Ya Lv Yishan Liu Pan Li Haichun Jing Hongwei Cai department of plant Genetics Breeding and Seed ScienceChina Agricultural UniversityBeijing Key Laboratory of Crop Genetic ImprovementLaboratory of Crop Heterosis and UtilizationMOEBeijing 100193China Key Laboratory of plant Resources Institute of BotanyChinese Academy of SciencesBeijing 100093China Inner Mongolia research Centre for Practaculture Chinese Academy of SciencesBeijing 100093China University of Chinese Academy of Sciences Beijing 100049China Forage Crop research Institute Japan Grassland Agricultural and Forage Seed Association388-5 HigashiakadaNasushiobaraTochigi 329-2742Japan

Tillering contributes to grain yield and plant architecture and therefore is an agronomically important trait in sorghum （Sorghum bicolor）. Here, we identified and functionally characterized a mutant of the Non- dormant Axillary Bud 1 （NAB1） gene from an ethyl methanesulfonate-mutagenized sorghum population. The nab1 mutants have increased tillering and reduced plant height. Map-based cloning revealed that NAB~ encodes a carotenoid-cleavage dioxygenase 7 （CCDT） orthologous to rice COryza sativa） HIGH-TILLERING DWARF1/ DWARF^7 and Arabidopsis thaliana MORE AXILLARY BRANCHING 3. NAB1 is primarily expressed in axillary nodes and tiller bases and NAB1 localizes to chloroplasts. The nab1 mutation causes outgrowth of basal axillary buds; removing these non-dormant basal axillary buds restoredthe wild-type phenotype. The tillering of nab1 plants was completely suppressed by exogenous application of the synthetic strigolactone analog GR24. Moreover, the nab1 plants had no detectable strigolactones and displayed stronger polar auxin transport than wild-type plants. Finally, RNA-seq showed that the expression of genes involved in multiple processes, including auxin-related genes, was significantly altered in nab1. These results suggest that NAB1 functions in strigolactone biosynthesis and the regulation of shoot branching via an interaction with auxin transport.

关键词： NAB Non-dormant Axillary Bud 1 regulates axillary bud outgrowth in sorghum Figure HTD

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Defective Kernel 39 encodes a PPR protein required for seed development in maize

引用

Journal of Integrative plant Biology 2018年第1期60卷 45-64页

作者： Xiaojie Li Wei Gu Silong Sun Zongliang Chen Jing Chen Weibin Song Haiming Zhao Jinsheng Lai State Key Laboratory of Agrobiotechnology and National Maize improvement Center Department of Plant Genetics and Breeding China Agricultural University

RNA editing is a posttranscriptional process that is important in mitochondria and plastids of higher plants. All RNA editing-specific trans-factors reported so far belong to PLS-class of pentatricopeptide repeat(PPR)proteins. Here, we report the map-based cloning and molecular characterization of a defective kernel mutant dek39 in maize. Loss of Dek39 function leads to delayed embryogenesis and endosperm development, reduced kernel size, and seedling lethality. Dek39 encodes an E subclass PPR protein that targets to both mitochondria and chloroplasts, and is involved in RNA editing in mitochondrial NADH dehydrogenase3(nad3) at nad3-247 and nad3-275. C-to-U editing of nad3-275 is not conserved and even lost in Arabidopsis, consistent with the idea that no close DEK39 homologs are present in Arabidopsis. However, the amino acids generated by editing nad3-247 and nad3-275 are highly conserved in many other plant species, and the reductions of editing at these two sites decrease the activity of mitochondria NADH dehydrogenase complex I,indicating that the alteration of amino acid sequence is necessary for Nad3 function. Our results indicate that Dek39 encodes an E sub-class PPR protein that is involved in RNA editing of multiple sites and is necessary for seed development of maize.

关键词： PPR Defective Kernel 39 encodes a PPR protein required for seed development in maize

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

DNNGP, a deep neural network-based method for genomic prediction using multi-omics data in plants

引用

Molecular plant 2023年第1期16卷 279-293页

作者： Kelin Wang Muhammad Ali Abid Awais Rasheed Jose Crossa Sarah Hearne Huihui Li Institute of Crop Sciences Chinese Academy of Agricultural Sciences(CAAS)CIMMYT-China Office12 Zhongguancun South StreetBeijing 100081China Nanfan research Institute CAASSanyaHainan 572024China department of plant Sciences Quaid-i-Azam UniversityIslamabad 45320Pakistan International Maize and Wheat improvement Center(CIMMYT) Apdo.Postal 6-641TexcocoD.F.06600Mexico

Genomic prediction is an effective way to accelerate the rate of agronomic trait improvement in *** methods typically use linear regression models with clear assumptions;such methods are unable to capture the complex relationships between genotypes and ***-linear models(e.g.,deep neural networks)have been proposed as a superior alternative to linear models because they can capture complex non-additive *** we introduce a deep learning(DL)method,deep neural network genomic prediction(DNNGP),for integration of multi-omics data in *** trained DNNGP on four datasets and compared its performance with methods built with five classic models:genomic best linear unbiased prediction(GBLUP);two methods based on a machine learning(ML)framework,light gradient boosting machine(LightGBM)and support vector regression(SVR);and two methods based on a DL framework,deep learning genomic selection(DeepGS)and deep learning genome-wide association study(DLGWAS).DNNGP is novel in five ***,it can be applied to a variety of omics data to predict ***,the multilayered hierarchical structure of DNNGP dynamically learns features from raw data,avoiding overfitting and improving the convergence rate using a batch normalization layer and early stopping and rectified linear activation(rectified linear unit)***,when small datasets were used,DNNGP produced results that are competitive with results from the other five methods,showing greater prediction accuracy than the other methods when large-scale breeding data were ***,the computation time required by DNNGP was comparable with that of commonly used methods,up to 10 times faster than ***,hyperparameters can easily be batch tuned on a local *** with GBLUP,LightGBM,SVR,DeepGS and DLGWAS,DNNGP is superior to these existing widely used genomic selection(GS)***,DNNGP can generate robust assessments from diverse datasets,including omics data

关键词： deep learning genomic selection multi-omics data prediction method

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：