U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Pinson, Shannonitem
                                            LI, ZHIKANG - INTNL RICR RESEARCH INSTitem
                                            TABIEN, RODANTE - TEXAS A&M UNIVitem
                                            Tai, Thomasitem
                                            Redus, Marcitem
                                            Fjellstrom, Robert
  Submitted to: Meeting Proceedings
                                    Publication Type: Proceedings
                                    Publication Acceptance Date: 11/1/2004
                                    Publication  Date: 1/1/2005
                                    Citation: Pinson, S.R., Li, Z., Tabien, R.E., Tai, T., Redus, M.A., Fjellstrom, R.G. 2005. The Lemont/Teqing RIL rice population provides unique opportunity for correlating molecular data with phenomics. Proceedings, 2nd International Symposium, Rice Functional Genomics, Tucson, Arizona. p. 150.Interpretive Summary:
                                Technical Abstract: Genetic maps and populations are the basic tool with which nucleotide sequence and phenotypic traits are linked; they are important tools for functional genomics research. A permanent rice gene-mapping population now consisting of 280 F16 recombinant inbred lines (RILs) derived from a cross between 'Lemont' and 'TeQing' is being used for efficient mapping of molecular markers, major genes, and QTLs by at least 15 private and public research groups both within and outside the USA.  Because of genetic similarities between rice and other cereal species, this LQ-RIL population supports investigation focussed on several crops in addition to rice.  With literature now containing reports of more than 200 Lemont and TeQing QTLs affecting grain and plant traits, this population offers unique opportunity to efficiently evaluate relationships between genes, QTLs, phenotype, morphology, physiology, biochemistry, and environmental differences.  Most of these QTLs were mapped relative to 203 RFLP markers.  The map has been enhanced with the addition of 140 microsatellite loci.      Among the presently available rice gene-mapping populations, the LQ-RIL population is unique in that a) it was the first to be well adapted to USA and other semi-tropical growing conditions, b) it exhibits marker segregation ratios that are less genetically skewed (closer to Mendelian expectations) than other mapping populations, and c) it consists of a larger set of progeny lines than other populations, allowing for identification of genes with smaller effect and for more precise estimation of marker/gene locations.  Lemont is a high-yielding tropical japonica variety from the USA;  TeQing is a very high yielding indica from China.  As a subspecific cross, this progeny population exhibits relatively high marker polymorphism (approximately 80% of RFLP and SSR markers tested), yet also exhibits sufficient reproductive fertility to support large-plot investigation. The LQ-RIL population, supervised by Dr. Pinson, was developed collaboratively by the USDA and Texas A&M University.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov