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
 Horticultural Crops Research Unit: Corvallis, OR
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    Other
                        History
                                    Useful Links
                    HortHappenings News PageSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Pacific West Area Corvallis, Oregon Horticultural Crops Research Unit 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
                                            Grunwald, Niklaus

                                                         - *Nik*item
                                            FLIER, WILBERT - PLANT RESEARCH INTNL
  Submitted to: Annual Review of Phytopathology
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 4/4/2005
                                    Publication  Date: 10/1/2005
                                    Citation: Grunwald, N.J., Flier, W.G. 2005. The biology of phytophthora infestans at its center of origin. Annual Review of Phytopathology. 43:171-190.Interpretive Summary: The central highlands of Mexico are considered to be a center of genetic diversity for both the potato late blight pathogen (Phytophthora infestans)and for tuber-bearing potato (Solanum) species. Recent work conducted in Mexico sheds new light on the biology and evolution of Phytophthora infestans and other related Phytophthora pathogens. It now appears that Mexican potato species that coevolved with the potato late blight pathogen not only provide a source of R-genes but also provide a source of resistance that is high, stable and durable. It is now apparent that Mexico is not only the center of origin of the potato late blight pathogen P. infestans, but  also of several related Phytophthora species including P. mirabilis, P. ipomoeae and possibly P. phaseoli. These four Phytophthora species appear to have evolved from one common ancestro through evolution of the ability to infect a news host.
                                Technical Abstract: The central highlands of Mexico are considered to be a center of genetic diversity for both the potato late blight pathogen and for tuber-bearing Solanum spp. Recent work conducted in Mexico and South America sheds new light on the biology and evolution of Phytophthora infestans and other related Phytophthora pathogens. It now appears that Mexican Solanum species that coevolved with P. infestans not only provide a source of R-genes but also provide a source of resistance that is high, stable and durable. It is now apparent that Mexico is not only the center of origin of the potato late blight pathogen P. infestans, but  also of several related Phytophthora species including P. mirabilis, P. ipomoeae and possibly P. phaseoli. We close with the hypothesis that these Phytophthora species evolved sympatrically from one ancestral host through adaptive radiation onto their respective four host families.


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