Atlas of Wild Potatoes
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Functional Genomics of Phytophthora Infestans Effectors and Solanum Resistance Genes
Functional Genomics of Phytophthora infestans Effectors and Solanum Resistance Genes Nicolas Champouret Thesis committee Thesis supervisors Prof. dr. Richard G.F. Visser Professor of Plant Breeding Wageningen University Prof. dr. Evert Jacobsen Professor of Plant Breeding Wageningen University Thesis co-supervisor Dr. Vivianne G.A.A. Vleeshouwers Researcher Wageningen University Other members Prof. Dr. Ir. Pierre J. G. M. de Wit, Wageningen University, The Netherlands Prof. Dr. Martien Groenen, Wageningen University, The Netherlands Prof. Dr. Ir. Corné Pieterse, Utrecht University, The Netherlands Dr. Brande Wulff, The Sainsbury Laboratory, Norwich, UK This research was conducted under the auspices of the Graduate School of Experimental Plant Sciences. II Functional Genomics of Phytophthora infestans Effectors and Solanum Resistance Genes Nicolas Champouret Thesis submitted in partial fulfillment of the requirements for the degree of doctor at Wageningen University by the authority of the Rector Magnificus Prof. dr. M.J. Kropff in the presence of the Thesis Committee appointed by the Doctorate Board to be defended in public on Wednesday 9 June 2010 at 4 p.m. in the Aula. III Nicolas Champouret Functional Genomics of Phytophthora infestans Effectors and Solanum Resistance Genes. 162 pages Thesis, Wageningen University, Wageningen, NL (2010) With references, with summaries in Dutch and English ISBN 978-90-8585-658-0 IV CONTENTS Abstract VII Chapter 1 1 General introduction Chapter 2 15 Phytophthora infestans Isolates Lacking Class I ipiO Variants Are Virulent on Rpi-blb1 Potato Chapter 3 43 Evolutionary and Functional Analyses Reveal a Diverse Family of R2 Late Blight Resistance Genes in Mexican Solanum Species Chapter 4 75 Diversity of PiAvr2/PexRD11 and R2 gene families underpins co-evolution between Phytophthora infestans and Mexican Solanum species Chapter 5 90 Functional allele-mining with Avr3a reveals active R3a in S. -
Breeding Virus Resistant Potatoes (Solanum Tuberosum): a Review of Traditional and Molecular Approaches
Heredity 86 (2001) 17±35 Received 22 December 1999, accepted 20 September 2000 Breeding virus resistant potatoes (Solanum tuberosum): a review of traditional and molecular approaches RUTH M. SOLOMON-BLACKBURN* & HUGH BARKER Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, Scotland, U.K. Tetraploid cultivated potato (Solanum tuberosum) is the World's fourth most important crop and has been subjected to much breeding eort, including the incorporation of resistance to viruses. Several new approaches, ideas and technologies have emerged recently that could aect the future direction of virus resistance breeding. Thus, there are new opportunities to harness molecular techniques in the form of linked molecular markers to speed up and simplify selection of host resistance genes. The practical application of pathogen-derived transgenic resistance has arrived with the ®rst release of GM potatoes engineered for virus resistance in the USA. Recently, a cloned host virus resistance gene from potato has been shown to be eective when inserted into a potato cultivar lacking the gene. These and other developments oer great opportunities for improving virus resistance, and it is timely to consider these advances and consider the future direction of resistance breeding in potato. We review the sources of available resistance, conventional breeding methods, marker-assisted selection, somaclonal variation, pathogen-derived and other transgenic resistance, and transformation with cloned host genes. The relative merits of the dierent methods are discussed, and the likely direction of future developments is considered. Keywords: breeding, host gene, potato virus, resistance, review, transgenic. The viruses whether the infection is primary (current season infec- tion) or secondary (tuber-borne). -
Networking Banana and Plantain
Networking Banana and Plantain Annual Report 2000 The mission of the International Network for the Improvement of Banana and Plantain is to sustainably increase the productivity of banana and plantain grown on smallholdings for domestic consumption and for local and export markets. The Programme has four specific objectives: • To organize and coordinate a global research effort on banana and plantain, aimed at the development, evaluation and dissemination of improved cultivars and at the conservation and use of Musa diversity • To promote and strengthen collaboration and partnerships in banana-related research activities at the national, regional and global levels • To strengthen the ability of NARS to conduct research and development activities on bananas and plantains • To coordinate, facilitate and support the production, collection and exchange of information and documentation related to banana and plantain. INIBAP is a programme of the International Plant Genetic Resources Institute (IPGRI), a Future Harvest Centre. The International Plant Genetic Resources Institute is an autonomous international scientific organization, supported by the Consultative Group on International Agricultural Research (CGIAR). IPGRI’s mandate is to advance the conservation and use of genetic diversity for the well-being of present and future generations. IPGRI’s headquarters is based in Rome, Italy, with offices in another 19 countries worldwide. It operates through three programmes: (1) the Plant Genetic Resources Programme, (2) the CGIAR Genetic Resources -
Descriptors for Baobab (Adansonia Digitata L.)
afrika focus — Volume 28, Nr. 1, 2015 — pp. 125-126 Descriptors for Baobab (Adansonia digitata L.) Kehlenbeck K.S. Padulosi, A. Alercia Bioversity International, World Agroforestry Centre Italy, Kenya, 2015 Bioversity International belongs to the so-called CG centre group. The latter, in full the Consultative Group on International Agricultural Research (though no longer known under their full name), consists of some fifteen research centres that are members of the CGIAR Consortium. Each centre has a global mandate to study, improve and promote (sub)tropical crops and animal production. Research is carried out in close collaboration with hundreds of partners, including national and regional research institutes, civil soci- ety organizations, academia, development organizations and the private sector. CGIAR´s collaborative research is dedicated to reducing rural poverty, increasing food security, improving human health and nutrition, and ensuring the sustainable man- agement of natural resources. The 15 Research Centres generate and disseminate knowledge, technologies, and policies for agricultural development through the CGIAR Research Programs. The CGIAR Fund provides reliable and predictable multi-year funding to enable research planning over the long term, resource allocation based on agreed priorities, and the timely and predictable disbursement of funds. A multi-donor trust fund finances research carried out by the Centres through the CGIAR Research Programs. In all, some 10,000 scientists and staff, top-notch research infrastructure and dy- namic networks try to deliver adequate solutions to burning development questions. CGIAR’s collections of genetic resources are the most comprehensive in the world, al- lowing the system’s scientists to deliver on expectations, within their mandate. -
Worldfish Style Guide
Photo credit: <Name>/<Organization> credit: Photo WorldFish Style Guide Version 3 April 2020 Table of contents Contents Table of contents i Introduction 1 Editorial style 2 1. Abbreviations 2 1.1. Acronyms and initialisms 2 1.2. Abbreviations for “species” 2 1.3. American states 2 1.4. Chemical elements 2 1.5. Geographic terms 2 1.6. Latin phrases 3 1.7. Periods in abbreviations 3 1.8. Project and program titles 3 1.9. Repeating units 3 1.10. Tables and reference materials 3 1.11. Truncations 3 1.12. Units of measurement 3 2. Annex versus appendix 4 3. Avoiding discriminatory language 4 3.1. Nonsexist language 4 3.2. Nonracist language 4 3.3. Language and disabilities 4 3.4. Language and age 5 4. Branding 5 5. Capitals 5 5.1. Geographic terms 5 5.2. Government 5 5.3. Headings 5 5.4. Hyphenated compounds 5 5.5. Initial words 6 5.6. Internet 6 5.7. Project and program titles 6 5.8. Small capitals 6 5.9. Titles 6 5.10. Titles of publications 6 i 6. Compound words 6 7. Copyright 7 8. Cross-references 7 9. Dates and times 7 10. Figures and illustrations 8 10.1. Figure captions 8 10.2. Numbering figures 8 10.3. Photo captions 8 11. Endnotes 8 12. Format 9 12.1. Headings 9 12.2. Order of elements in a publication 9 12.3. Paragraphs 9 13. Front matter/Preliminaries 9 13.1. Acknowledgments 9 13.2. Contents 9 13.3. Page numbering 9 14. -
Two Blades of Grass: the Role of Science in the Green Revolution Alan Mark Fletcher November 13 and 14, 2011
Two Blades of Grass: The Role of Science in the Green Revolution Alan Mark Fletcher November 13 and 14, 2011 Alan Mark Fletcher ’50 worked for over fifty years as a science writer and editor at institutions including Cornell University, the University of Georgia, the International Rice Research Institute, and the International Service for National Agricultural Research. Whoever could make two ears of corn or two blades of grass grow upon a spot of ground where only one grew before, would deserve better of mankind, and do more service to his country, than the whole race of politicians put together. - Jonathan Swift, in Gulliver’s Travels n 1798 the English clergyman-philosopher Thomas Malthus published “An Essay on the Principle of I Population,” in which he argued that while the population of the world would increase geometrically, the food available would increase only arithmetically. Malthus postulated that human population growth, therefore, would eventually outstrip the agricultural capacity of the Earth. At some point, he predicted, natural forces like famine and disease would reduce the human population to a sustainable level. His hypothesis has yet to be proven on any large scale with humans, but biologists have seen the Malthusian principle turn out to be correct with other animals, and there is no reason to believe that his hypothesis does not apply to humans. Back in 1968, Stanford University ecologist Paul R. Ehrlich scared us to death when he published The Population Bomb, in which he maintained that the Malthusian principle was about to overtake us. His book began with this statement: “The battle to feed all of humanity is over. -
Testing Taxonomic Predictivity of Foliar and Tuber Resistance to Phytophthora Infestans in Wild Relatives of Potato
Genetics and Resistance Testing Taxonomic Predictivity of Foliar and Tuber Resistance to Phytophthora infestans in Wild Relatives of Potato A. Khiutti, D. M. Spooner, S. H. Jansky, and D. A. Halterman First author: All-Russian Institute for Plant Protection, Laboratory of Plant Immunity to Diseases, 3, Podbelsky shosse, St. Petersburg-Pushkin, 196608, Russia; second, third, and fourth authors: United States Department of Agriculture–Agricultural Research Service, Madison, WI, 53726; and second and third authors: Department of Horticulture, University of Wisconsin, Madison 53706. Accepted for publication 8 April 2015. ABSTRACT Khiutti, A., Spooner, D. M., Jansky, S. H., and Halterman, D. A. 2015. intensive. We tested the ability of taxonomy, ploidy, crossing group, Testing taxonomic predictivity of foliar and tuber resistance to Phytoph- breeding system, and geography to predict the presence of foliar and thora infestans in wild relatives of potato. Phytopathology 105:1198-1205. tuber late blight resistance in wild Solanum spp. Significant variation for resistance to both tuber and foliar late blight was found within and Potato late blight, caused by the oomycete phytopathogen Phytoph- among species but there was no discernable predictive power based on thora infestans, is a devastating disease found in potato-growing regions taxonomic series, clade, ploidy, breeding system, elevation, or geo- worldwide. Long-term management strategies to control late blight graphic location. We observed a moderate but significant correlation include the incorporation of host resistance to predominant strains. between tuber and foliar resistance within species. Although previously However, due to rapid genetic changes within pathogen populations, uncharacterized sources of both foliar and tuber resistance were rapid and recurring identification and integration of novel host resistance identified, our study does not support an assumption that taxonomic or traits is necessary. -
Potato - Wikipedia, the Free Encyclopedia
Potato - Wikipedia, the free encyclopedia Log in / create account Article Talk Read View source View history Our updated Terms of Use will become effective on May 25, 2012. Find out more. Main page Potato Contents From Wikipedia, the free encyclopedia Featured content Current events "Irish potato" redirects here. For the confectionery, see Irish potato candy. Random article For other uses, see Potato (disambiguation). Donate to Wikipedia The potato is a starchy, tuberous crop from the perennial Solanum tuberosum Interaction of the Solanaceae family (also known as the nightshades). The word potato may Potato Help refer to the plant itself as well as the edible tuber. In the region of the Andes, About Wikipedia there are some other closely related cultivated potato species. Potatoes were Community portal first introduced outside the Andes region four centuries ago, and have become Recent changes an integral part of much of the world's cuisine. It is the world's fourth-largest Contact Wikipedia food crop, following rice, wheat and maize.[1] Long-term storage of potatoes Toolbox requires specialised care in cold warehouses.[2] Print/export Wild potato species occur throughout the Americas, from the United States to [3] Uruguay. The potato was originally believed to have been domesticated Potato cultivars appear in a huge variety of [4] Languages independently in multiple locations, but later genetic testing of the wide variety colors, shapes, and sizes Afrikaans of cultivars and wild species proved a single origin for potatoes in the area -
Bioversity International’S Views on the Preparation, Scope and Content of the Post-2020 Global Biodiversity Framework
Bioversity International’s views on the preparation, scope and content of the post-2020 global biodiversity framework Rome, 14 December 2018 Agricultural biodiversity or agrobiodiversity is a subset of biodiversity. Both wild biodiversity and agrobiodiversity provide multiple ecosystem services that support food production, underpin food security and human wellbeing. We consider that biodiversity conservation efforts in agricultural contexts should better integrate wild and agrobiodiversity approaches. There is potential to better integrate and align efforts and activities to achieve outcomes for both agricultural and wild biodiversity, yet most agricultural and wild conservation strategies continue to be pursued separately. Given that globally, 38% of land is now farmed, agricultural land management is increasingly important for wild biodiversity conservation. How agrobiodiversity generates ecosystem services • Crop provisioning; livestock provisioning • Nutritional and dietary diversity; increased number of functional traits leads to more resistant and resilient crops • Reduced need for pesticides due to agrobiodiversity-based pest and disease control; complex vegetation structure as filter of pollutants • Increased carbon sequestration through more continuous biomass; increased soil function and carbon sequestration; increased use of legumes reduces need for NPK use • Intercropping and interspecific crop diversity providing habitat and resources for natural enemies. Intraspecific diversity suppressing pests and diseases 1 Bioversity International is increasingly seen as the world’s leading agrobiodiversity research and innovation centre with expertise on conservation and use of agrobiodiversity, working towards healthy diets from sustainable food systems; productive and resilient farms, forests and landscape; and effective genetic resources conservation and use. Biological diversity is vitally important to agriculture, food and nutrition security, as well as to the integrity of the natural resources upon which 1 Attwood et al. -
Open Ohlsondissertation.Pdf
The Pennsylvania State University The Graduate School Intercollege Graduate Degree Program in Genetics GENETIC CHARACTERIZATION AND MAPPING OF LATE BLIGHT RESISTANCE GENES IN THE WILD TOMATO ACCESSIONS PI 163245 AND PI 224710 A Dissertation in Genetics by Erik William Ohlson © 2015 Erik William Ohlson Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy December 2015 ii The dissertation of Erik William Ohlson was reviewed and approved* by the following: Majid R. Foolad Professor of Plant Genetics Dissertation Advisor David R. Huff Professor of Turfgrass Breeding and Genetics Chair of Committee Surinder Chopra Professor of Maize Genetics Beth K. Gugino Associate Professor of Vegetable Pathology Timothy W. McNellis Associate Professor of Plant Pathology Yinong Yang Associate Professor of Plant Pathology Robert F. Paulson Professor of Veterinary and Biomedical Sciences Chair of the Intercollege Graduate Degree Program in Genetics *Signatures are on file in the Graduate School. iii ABSTRACT Late blight (LB), caused by the oomycete Phytophthora infestans (Mont.) de Bary is one of the most destructive diseases of tomato and potato worldwide. Development of fungicide resistant and more aggressive P. infestans clonal lineages has emphasized the importance of discovering and incorporating new genetic resistance in tomato cultivars. Although the cultivated tomato, Solanum lycopersicum L., contains limited genetic diversity, several related wild species of tomato are suitable for identification of new desirable traits. Previously, 67 S. pimpinellifolium accessions were screened for LB resistance in field, greenhouse and detached leaflet trials and 12 accessions with strong resistance to LB were identified. In this dissertation, two resistant accessions, PI 163245 and PI 224710, were selected for further genetic characterization. -
Wildpotato Collecting Expedition in Southern Peru
A Arner J of Potato Res (1999) 76:103-119 103 Wild Potato Collecting Expedition in Southern Peru (Departments of Apurimac, Arequipa, Cusco, Moquegua Puno, Tacna) in 1998: Taxonomy and New Genetic Resources David M. Spooner*\ Alberto Salas L6pez2,Z6simo Huaman2, and Robert J. Hijmans2 'United States Department of Agriculture, Agricultural Research Service, Department of Horticulture, University of Wisconsin, 1575 Linden Drive, Madison, WI, 53706-1590. Tel: 608-262-0159; FAX: 608-262-4743; email: [email protected]) 'International Potato Center (CIP), Apartado 1558, La Molina, Lima 12, Peru. ABSTRACT INTRODUCTION Peruhas 103 taxa of wild potatoes (species, sub- Wild and cultivated tuber-bearing potatoes (Solanum species, varieties, and forms) according to Hawkes sect. Petota) are distributed from the southwestern United (1990; modified by us by a reduction of species in the States to south-central Chile. The latest comprehensive tax- Solanum brevicaule complex) and including taxa onomic treatment of potatoes (Hawkes, 1990) recogllized 216 described by C. Ochoa since 1989. Sixty-nine of these tuber-bearing species, with 101 taxa (here to include species, 103 taxa (67%) were unavailable from any ofthe world's subspecies, varieties and forms) from Peru. Ochoa (1989, genebanks and 85 of them (83%) had less than three 1992b, 1994a,b) described ten additional Peruvian taxa rais- germplasm accessions. We conducted a collaborative ing the total to 111. We lower this number to 103 with a mod- Peru(INIA), United States (NRSP-6), and International ification of species in the Solanum brevicaule complex. Potato Center (CIP) wild potato (Solanum sect. Petota) Sixty-nine of these 103 species (67%) were unavailable from collecting expedition in Peru to collect germplasm and any ofthe world's genebanks and 85 of them (83%) had less gather taxonomic data. -
Introduction Assignment of GLIS Dois to PGRFA Hosted by CGIAR Center
CGIAR Centers’ use of Digital Object Identifiers (DOIs): a submission to the Advisory Committee on the Global Information System Introduction This submission has been prepared in response to a request from the Secretary of the International Treaty on Plant Genetic Resources (ITPGRFA), Dr Kent Nnadozie, to the eleven CGIAR Centers that signed Article 15 agreements with the Governing Body of the ITPGRFA. In his letter, the Secretary referred to a request from the Scientific Advisory Committee on the Global Information System (SAC-GLIS), to the Secretariat to: “gather information from GLIS users, including CGIAR Centers and other institutions managing crop germplasm repositories, on the current application of DOIs to crop germplasm in the Multilateral System of Access and Benefit-Sharing for which DSI/GSD are available in compatible information systems” He asked the Centers if they “could provide the Secretariat with information pertinent to the request of the SAC-GLIS”. In preparing this submission, the management team of the Policy Module of the CGIAR Genebank Platform conducted a survey among the eleven Article 15 Centers. All Centers responded to the questionnaire. The following sections provide a summary of their responses. It includes illustrative examples of Centers’ practices using DOIs to date. Assignment of GLIS DOIs to PGRFA hosted by CGIAR Centers’ Current status As of May 21, 2019, GLIS reported that 834,252 DOIs have been minted. Approximately 94% of those DOIs are for materials hosted by CGIAR Centers. CGIAR Centers made it a priority in 2018 to ‘mint’ DOIs for materials in the international collections that they host. The ITPGRFA Secretariat provided excellent technical support.