HE Feng-hua

South China Normal University

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Ruizhen Zeng

South China Agricultural University

XI Zhang-ying

East China University of Science and Technology

Guiquan Zhang

South China Agricultural University

Akshay Talukdar

Indian Agricultural Research Institute

Zemin Zhang

Center for Life Sciences

Wentao Li

Huazhong Agricultural University

Xiaohua Ding

China University of Mining and Technology

Zhaojin Chen

Nanyang Normal University

Yonghui Zhang

Hebei University of Technology

Liqiang Wan

Chinese Academy of Agricultural Sciences

Cooperative Institutions

South China Normal University

South China Agricultural University

Chinese Academy of Agricultural Sciences

Institute of Animal Sciences

State Key Laboratory For Conservation and Utilization of Subtropical Agro-Bioresources

Zhejiang University

Peking University

Wuhan University

South China University of Technology

Chinese Academy of Sciences

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Advances on rice QTL analysis

Xibei zhiwu xuebao (2004)

HE Feng-hua

Most of the important agronomic traits of rice are quantitative in nature, which are controlled by polygenes. In conventional quantitative genetics, QTL analysis was only executed as a whole. In recent years, the construction of highly dense molecular linkage map and the development of effective biostatistical methods have revolutionized the genetic studies of quantitative traits. The joint analysis of molecular marker genotype and phenotype values of individuals or lines in different populations enabled the detection and location of quantitative trait loci (QTL). In the present paper, the principles and methods of QTL mapping were introduced, recent progresses in the studies of QTL analysis in rice were reviewed, including QTL numbers and effects, epistasis effect, interaction between QTL and environment, QTLs of related characters, developmental QTL and so on. The rice genome sequencing project has been finished, therefore in this paper, the strategy for fine mapping and cloning of QTLs in the genome era was also discussed. Application prospect of QTL analysis in rice breeding was forecasted.

Family-based QTL mapping

Polygene

Epistasis

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Thinking about the creative teaching on genetics experiments

Experimental Technology and Management (2008)

HE Feng-hua

The quick development of genetics advanced the teaching demand on genetics experiments.The necessity of teaching innovation on genetics experiments was discussed,and how to carry out the creative teaching,including choosing the teaching contents of practical genetics,using reasonable teaching method and adopting appropriate examination method was analyzed and explained,which object is to further increase the teaching quality of genetics experiments.

Medical genetics

Molecular Genetics

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Management Regimen and Seeding Rate Modify Seedling Establishment of Leymus chinensis

Rangeland Ecology & Management (2015)

G.X. Liu HE Feng-hua Liqiang Wan Xiuyun Li

Steppe

Soil seed bank

Leymus

Eupatorium

10.1016/j.rama.2015.01.007

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Citations (9)

Characterization of donor genome contents of backcross progenies detected by SSR markers in rice

Euphytica (2007)

XI Zhang-ying HE Feng-hua Ruizhen Zeng Zemin Zhang Xiaohua Ding

Introgression

10.1007/s10681-007-9547-7

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Citations (9)

Allelopathic effects of four wetland plants on seed germination and plant growth

WIT transactions on the built environment (2014)

H.Y. Li Yonghui Zhang Bohou Song HE Feng-hua Zhaojin Chen

Allelopathy

10.2495/esbe140411

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Microsatellite Markers and Their Applications in the Rice Genome

JOURNAL OF HUNAN AGRICULTURAL UNIVERSITY (2004)

HE Feng-hua

Microsatellites or simple sequence repeats (SSRs),are simple tandemly repeated DNA sequence motif consisting of repeat units of 2~4 bp in length.Microsatellite loci have shown to be highly polymorphic due to variation in the number of repeat units between different varieties.Simple sequence length polymorphism (SSLP) can be detected with polymerase chain reaction (PCR) by selecting the conserved sequences flanking SSR as primers.SSR markers are ideally genetic markers because of their co-dominance,high levels of allelic diversity,ease of assay and high reliability.Microsatellites are very abundant and are evenly distributed throughout the rice genome.More than 2740 SSR markers have been developed in rice.SSR markers have been extensively applied in the construction of rice molecular linkage map,gene (QTL) mapping for important traits,pedigree analysis, molecular marker-assisted selection,the study of genetic diversity and the usage of germplasm.

Germ plasm

Genetic linkage

Sequence-tagged site

Molecular marker

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Mapping of heading date QTLs in rice (Oryza sativa L.) using single segment substitution lines

Zhongguo Nong ye ke xue = Zhongguo Nongye Kexue (2005)

HE Feng-hua XI Zhang-ying Ruizhen Zeng

Heading date (HD) is an important agronomic trait in rice. Appropriate heading date is a prerequisite for attaining the desired yield level in rice breeding programs. It is very important for rice improvement to map heading date quantitative trait loci (QTLs). Single segment substitution lines (SSSLs) containing only one segment of donor chromosome are useful tools for precise mapping of QTLs and for the evaluation of gene action. In this research, the QTLs for heading date on the substituted segments of 52 rice SSSLs derived from 6 advanced backcrosses were identified through t-test for means comparisons between SSSLs and the recipient parent Huajingxian 74. QTLs were detected with a significance of P≤0.001. A total of 20 QTLs were identified on 10 rice chromosomes with the exception of chromosomes 5 and 6. The QTL additive effect ranged from –5.9 to 1.1, and the additive effect percentages of the QTLs ranged from –7.4% to 1.4%. Eight QTLs were mapped in intervals less than 10.0 cM. qHD-3-1, a dominant gene for early heading, has been mapped using a F2 population developed from a cross between a SSSL and Huajingxian 74. In mapping population the segregation ratio of early and late heading plants was in accordance with 3:1. qHD-3-1 was located between microsatellite markers PSM304 and RM569 on the short arm of chromosome 3 at genetic distances of 2.4 cM and 5.1 cM, respectively.

Chromosome 3

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Citations (15)

Identification of Multiple Alleles at the Wx Locus and Development of Single Segment Substitution Lines for the Alleles in Rice

水稻科学(英文版) (2006)

Ruizhen Zeng Zemin Zhang HE Feng-hua XI Zhang-ying Akshay Talukdar

The microsatellite markers 484/485 and 484/W2R were used to identify the multiple alleles at the Wx locus in rice germplasm. Fifteen alleles were identified in 278 accessions by using microsatellite class and G-T polymorphism. Among these alleles, (CT)12-G, (CT)15-G, (CT)16-G, (CT)17-G, (CT)18-G and (CT)21-G have not been reported. Seventy-two single-segment substitution lines (SSSLs) carrying different alleles at the Wx locus were developed by using Huajingxian 74 with the (CT)11-G allele as a recipient and 20 accessions containing 12 different alleles at the Wx locus as donors. The estimated length of the substituted segments ranged from 2.2 to 77.3 cM with an average of 17.4 cM.

Germ plasm

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Citations (8)

[A new teaching mode improves the effect of comprehensive experimental teaching of genetics].

PubMed (2015)

HE Feng-hua Jieqiang Li Zhu Biyan Feng Gao

To improve the research atmosphere in genetics experimental teaching and develop students' creativity in research, we carried out a reform in comprehensive experimental teaching which is one of important modules for genetics practice. In our new student-centered teaching mode, they chose research topics, performed experiments and took innovative approaches independently. With the open laboratory and technical platform in our experimental teaching center, students finished their experiments and were required to write a mini-research article. Comprehensive experimental teaching is a scientific research practice before they complete their thesis. Through this teaching practice, students' research skills in experimental design and operation, data analysis and results presentation, as well as their collaboration spirit and innovation consciousness are strengthened. 综合性实验是遗传学实验教学的重要模块之一。为了提高遗传学实验课的研究氛围,全面培养学生的科研创新能力,本课程组开展了遗传学综合性实验的教学改革：在教学中以学生为主导,采用学生自主选题、自主实验、自主创新的“三自”教学模式,学生利用我院实验教学中心开放的实验室和技术平台完成实验研究,并撰写小论文。综合性实验的教学是学生在完成毕业论文前的一次科研演习,通过这项实验,学生在实验设计与操作、实验数据分析、结果报告等与科研密切相关的综合实验能力得到了加强,全面提升了学生的团队协作精神和自主创新意识。.

Presentation (obstetrics)

Mode (computer interface)

Experimental research

10.16288/j.yczz.14-298

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Citations (2)

Development of a wide population of chromosome single-segment substitution lines in the genetic background of an elite cultivar of rice (Oryza sativaL.)

Genome (2006)

XI Zhang-ying HE Feng-hua Ruizhen Zeng Zemin Zhang Xiaohua Ding

Naturally occurring allelic variations underlying complex traits are useful resources for the functional analysis of plant genes. To facilitate the genetic analysis of complex traits and the use of marker-assisted breeding in rice, we developed a wide population consisting of 217 chromosome single-segment substitution lines (SSSLs) using Oryza sativa L. 'Hua-Jing-Xian74' (HJX74), an elite Indica cultivar, as recipient, and 6 other accessions, including 2 Indica and 4 Japonica, as donors. Each SSSL contains a single substituted chromosome segment derived from 1 of the 6 donors in the genetic background of HJX74. The total size of the substituted segments in the SSSL population was 4695.0 cM, which was 3.1 times that of rice genome. To evaluate the potential application of these SSSLs for quantitative trait loci detection, phenotypic variations of the quantitative traits of days to heading and grain length in the population consisting of 210 SSSLs were observed under natural environmental conditions. The results demonstrated that there was a wide range of phenotypic variation in the traits in the SSSL population. These genetic materials will be powerful tools to dissect complex traits into a set of monogenic loci and to assign phenotypic values to different alleles at the locus of interest.Key words: rice, mapping population, single segment substitution lines, marker-assisted selection, quantitative trait loci.

Oryza

10.1139/g06-005

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Citations (131)