检索结果-南通市图书馆

Transferability of Microsatellite Markers from Brachypodium distachyon to Miscanthus sinensis,a Potential Biomass Crop

引用

Journal of Integrative Plant Biology 2011年第3期53卷 232-245页

作者： Hua Zhao Jiangyan Yu Frank M. You Mingcheng Luo Junhua Peng Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical Garden the Chinese Academy of Sciences Wuhan 430074 China Department of Plant Sciences University of California Davis CA 95616 USA Department of Soil and Crop Sciences Colorado State University Fort Collins CO 80523-1170 USA

Miscanthus sinensis has high biomass yield and contributed two of the three genomes in M. x giganteus, a bioenergy crop widely studied in Europe and North America, and thus is a potential biomass crop and an important germplasm for Miscanthus breeding. Molecular markers are essential for germplasm evaluation, genetic analyses and new cultivar development in M. sinensis. In the present study, we reported transferability of simple sequence repeat （SSR） markers from Brachypodium distachyon to M. sinensis. A set of 57 SSR markers evenly distributed across the B. distachyon genome were deliberately designed. Out of these B. distachyon SSR markers, 86.0% are transferable to M. sinensis. The SSR loci amplified in M. sinensis were validated by re-sequencing the amplicons. The polymorphism information content （PIC） of the transferable SSR markers varied from 0.073 to 0.375 with a mean of 0.263, assessed based on 21 M. sinensis genotypes. Phylogenetic tree based on 162 alleles detected by 49 SSR markers could unambiguously distinguish B. distachyon from M. sinensis, and cluster 21 M. sinensis genotypes into three groups that are basically in coincidence with their geographical distribution and ecotype classifications. The markers developed by the comparative genomic approach could be useful for germplasm evaluation, genetic analysis, and marker-assisted breeding in Miscanthus.

关键词： Miscanthus Genomes Biomass Evaluation Genetics viverridae Crops Oesophagus Germplasm Geographical distribution

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

Genetic Analysis and Fine Mapping of a Novel Semidominant Dwarfing Gene LB4D in Rice

引用

Journal of Integrative Plant Biology 2011年第4期53卷 312-323页

作者： Fei Liang Xiaoyun Xin Zejun Hu Jiandi Xu Gang Wei Xiaoyin Qian Jinshui Yang Haohua He Xiaojin Luo State Key Laboratory of Genetic Engineering Instituteof Genetics School of Life Sciences Fudan University Shanghai 200433 China Key Laboratory of Crop Physiology Ecology and Genetic Breeding Ministry of Education Jiangxi Agricultural University Nanchang 330045 China Institute of Rice Research Shandong Academy of Agricultural Sciences Jining 272100 China

A dwarf mutant,designated LB4D,was obtained among the progeny of backcrosses to a wild rice introgression *** analysis of LB4D indicated that the dwarf phenotype was controlled by a single semidominant dwarfing gene,which was named *** mutants were categorized as dn-type dwarf mutants according to the pattern of internode *** addition,gibberellin（GA） response tests showed that LB4D plants were neither deficient nor insensitive to *** study found that tiller formation by LB4D plants was decreased by 40%compared with the wild type,in contrast to other dominant dwarf mutants that have been identified,indicating that a different dwarfing mechanism might be involved in the LB4D dominant *** reduction of plant height in F1 plants ranged from 27.9%to 38.1%in different genetic backgrounds,showing that LB4D exerted a stronger dominant dwarfing effect. Using large F2 and F3 populations derived from a cross between heterozygous LB4D and the japonica cultivar Nipponbare,the LB4D gene was localized to a 46 kb region between the markers Indel 4 and Indel G on the short arm of chromosome 11,and four predicted genes were identified as candidates in the target region.

关键词： Dwarfism Dwarfs Mutants viverridae Genetics Genes Reduction Gibberellic acid Plants Planting

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

Genetic Analysis of ele Mutants and Comparative Mapping of ele1 Locus in the Control of Organ Internal Asymmetry in Garden Pea

引用

Journal of Integrative Plant Biology 2010年第6期52卷 528-535页

作者： Xin Li Li-Li Zhuang Mike Ambrose M. Phil. Catherine Rameau Xiao-He Hu Jun Yana Da Luo School of Life Science and Biotechnology Shanghai JiaoTong University Shanghai 200030 China Department of Crop Genetics John Innes Centre Colney Norwich NR4 7UH United Kingdom Station de Genetique et d'Amelioration des Plantes Institut J.P. Bourgin UR 254 INRA Versailles France National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biologica Sciences the Chinese Academy of Sciences Shanghai 200032 China

Previous study has shown that during zygomorphic development in garden pea （Pisum sativum L.）, the organ internal （IN） asymmetry of lateral and ventral petals was regulated by a genetic locus, SYMMETRIC PETAL 1 （SYP1）, while the dorsoventral （DV） asymmetry was determined by two CYC-like TCP genes or the PsCYC genes, KEELED WINGS （K） and LOBED STANDARD 1 （LST1）. In this study, two novel loci, ELEPHANT EAR-LIKE LEAF 1 （ELE1） and ELE2 were characterized. These mutants exhibit a similar defect of IN asymmetry as syp1 in lateral and ventral petals, but also display pleiotropic effects of enlarged organ size. Genetic analysis showed that ELE1 and ELE2 were involved in same genetic pathway and the enlarged size of petals but not compound leaves in e/e2 was suppressed by introducing k and Ist1, indicating that the enlargement of dorsal petal in e/e2 requires the activities of K and LST1. An experimental framework of comparative genomic mapping approach was set up to map and clone LjELE1 locus in Lotus japonicus. Cloning the ELE1 gene will shed light on the underlying molecular mechanism during zygomorphic development and further provide the molecular basis for genetic improvement on legume crops.

关键词： viverridae Genetics Organizations Corolla Loci

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

C4 Rice-an Ideal Arena for Systems Biology Research

引用

Journal of Integrative Plant Biology 2010年第8期52卷 762-770页

作者： Xin-Guang Zhu Lanlan Shan Yu Wang William Paul Quick Key Laboratory of Computational Biology CAS-MPG Partner Institute for Computational Biology Shanghai Institutes for Biologica Sciences Chinese Academy of Sciences Shanghai 200031 China The International Rice Research Institute Los Banos Philippines

Engineering the C4 photosynthetic pathway into C3 crops has the potential to dramatically increase the yields of major C3 crops. The genetic control of features involved in C4 photosynthesis are still far from being understood; which partially explains why we have gained little success in C4 engineering thus far. Next generation sequencing techniques and other high throughput technologies are offering an unprecedented opportunity to elucidate the developmental and evolutionary processes of C4 photosynthesis. Two contrasting hypotheses about the evolution of C4 photosynthesis exist, i.e. the master switch hypothesis and the incremental gain hypothesis. These two hypotheses demand two different research strategies to proceed in parallel to maximize the success of C4 engineering. In either case, systems biology research will play pivotal roles in identifying key regulatory elements controlling development of C4 features, identifying essential biochemical and anatomical features required to achieve high photosynthetic efficiency, elucidating genetic mechanisms underlining C4 differentiation and ultimately identifying viable routes to engineer C4 rice. As a highly interdisciplinary project, the C4 rice project will have far-reaching impacts on both basic and applied research related to agriculture in the 21st century.

关键词： Engineering Engines Engineers viverridae Genetics Crops Oesophagus Forecasting Rice Technology

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

Polymorphisms in microRNA targets： a source of new molecular markers for male reproduction

引用

Asian Journal of Andrology 2011年第3期13卷 505-508页

作者： Jernej Ogorevc Peter Dovc Tanja Kunej Department of Animal Science Biotechnical Faculty University of Liubljana Domzale 1230 Slovenia

Dear Editor, Herein we discuss the impact of microRNA （miRNA） target genetic variability in male infertility genes, which can represent a source of novel molecular-genetic markers that can be used for the diagnosis of male infertility. Male-factor infertility accounts for 30%--40% of infertility cases. The causes of spermatogenetic failure found in most cases of non-obstructive azoospermia or severe oligozoospermia still remain idiopathic.

关键词： Male infertility Casings Accounting Infertility Males Genetics viverridae

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

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

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：