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
                                            Stommel, Johnitem
                                            Zhang, Yiping
  Submitted to: Meeting Abstract
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 6/10/2000
                                    Publication  Date: N/A
                                    Citation: N/AInterpretive Summary:
                                Technical Abstract: In North America, anthracnose is the most serious ripe fruit disease of tomatoes grown for processing.  It is endemic in the midwestern United States and south-central Canada.  This fruit rot disease is caused primarily by C. coccodes but can also be elicited by a number of other Colletotrichum species.  Rainfall, warm temperatures, and high humidity which occur at harvest favor disease development.  If left uncontrolled, serious crop losses and reduced crop quality occur.   High levels of resistance have been identified in small-fruited Lycopersicon accessions.  Transfer of comparable levels of genetic resistance from these unadapted materials to elite commercial tomato lines has proven difficult.  Using segregating populations developed from crosses between  anthracnose susceptible processing lines and the resistant L. esculentum Plant Introduction 272636, molecular markers associated with anthracnose resistance were identified. Genetic effects and heritability were also evaluated.  Genetic analysis demonstrated that resistance was primarily additive and that resistance was influenced by at least three genetic factors in this cross. Additional RIL analysis and use of these markers in marker assisted breeding will be discussed.


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