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Heirloom seeds and their keepers : marginality and memory in the conservation of biological diversity
Farmers and gardeners have long appreciated a wide variety of plants and have nurtured them for meals, medicine, and exchange. But diversity too often has been surrendered to monocultures of fields and spirits, predisposing much of modern agriculture to uniformity and, consequently, vulnerability. Today it is primarily at the individual level - such as growing and saving a strange old bean variety or a curious-looking gourd - that any lasting conservation actually takes place. Heirloom Seeds and Their Keepers offers a much-needed, scientifically researched perspective on the contribution of seedsaving that illustrates its critical significance to the preservation of both cultural knowledge and crop diversity around the world. It opens new conversations between anthropology and biology, and between researchers and practitioners, as it honors conservation as a way of life.
Book
Plant genetic resources for food and agriculture
Over the last decade, there has been an ongoing revolution in the exploration, manipulation and synthesis of biological systems, through the development of new technologies that generate, analyse and exploit big data. Users of Plant Genetic Resources (PGR) can potentially leverage these capacities to significantly increase the efficiency and effectiveness of their efforts to conserve, discover and utilise novel qualities in PGR, and help achieve the Sustainable Development Goals (SDGs). This review advances the discussion on these emerging opportunities and discusses how taking advantage of them will require data integration and synthesis across disciplinary, organisational and international boundaries, and the formation of multidisciplinary, international partnerships. We explore some of the institutional and policy challenges that these efforts will face, particularly how these new technologies may influence the structure and role of research for sustainable development, ownership of resources, and access and benefit sharing. We discuss potential responses to political and institutional challenges, ranging from options for enhanced structure and governance of research discovery platforms to internationally brokered benefit-sharing agreements, and identify a set of broad principles that could guide the global community as it seeks or considers solutions.
Journal Article
Intellectual property law and plant protection : challenges and developments in Asia
\"This book provides a detailed and critical account of the emergence, development and implementation of plant variety protection laws in Asian countries. Each chapter undertakes a critical socio-legal analysis of one or more legal frameworks to understand, evaluate, and explore: the concerns of diverse national stakeholders; the histories and dynamics of law-making; and the ways in which plant variety protection and seed certification laws interact with local agricultural systems. The book also assesses how Asian countries can capitalise on the 'unused policy space' in international agreements such as TRIPS and UPOV, as well as international obligations beyond this, such as those contained in the CBD and the Plant Treaty. It also highlights the many ways Asian experiences can offer new insights into how regimes that grant intellectual property rights in plants might be re-imagined in other regions, including Africa, Europe and the Americas. By adding an important new perspective to the ongoing debate on intellectual property and plants, this book will appeal to academics, practitioners and policymakers engaged in work surrounding intellectual property laws, agricultural biodiversity and plant breeding\"-- Provided by publisher.
Book
The Future of Digital Sequence Information for Plant Genetic Resources for Food and Agriculture
The recent debates on the legal status of “digital sequence information” (DSI) at the international level could have extensive consequences for the future of agriculture and food security. A large majority of recent advances in biology, medicine, or agriculture were achieved by sharing and mining of freely accessible sequencing data. It is most probably because of the tremendous success of modern genomics and advances of synthetic biology that concerns were raised about possible fair and equitable ways of sharing data. The DSI concept is relatively new, and all concerned parties agreed upon the need for a clear definition. For example, the extent to which DSI understanding is limited only to genetic sequence data has to be clarified. In this paper, I focus on a subset of DSI essential to humankind: the DSI originating from plant genetic resources for food and agriculture (PGRFA). Two international agreements shape the conservation and use of plant genetic resources: the Convention on Biodiversity and the International Treaty for Plant Genetic Resources for Food and Agriculture. In an attempt to mobilize DSI users and producers involved in research, breeding, and conservation, I describe here how the increasing amount of genomic data, information, and studies interact with the existing legal framework at the global level. Using possible scenarios, I will emphasize the complexity of the issues surrounding DSI for PGRFA and propose potential ways forward for developing an inclusive governance and fair use of these genetic resources.
Journal Article
Germplasm Acquisition and Distribution by CGIAR Genebanks
The international collections of plant genetic resources for food and agriculture (PGRFA) hosted by 11 CGIAR Centers are important components of the United Nations Food and Agriculture Organization’s global system of conservation and use of PGRFA. They also play an important supportive role in realizing Target 2.5 of the Sustainable Development Goals. This paper analyzes CGIAR genebanks’ trends in acquiring and distributing PGRFA over the last 35 years, with a particular focus on the last decade. The paper highlights a number of factors influencing the Centers’ acquisition of new PGRFA to include in the international collections, including increased capacity to analyze gaps in those collections and precisely target new collecting missions, availability of financial resources, and the state of international and national access and benefit-sharing laws and phytosanitary regulations. Factors contributing to Centers’ distributions of PGRFA included the extent of accession-level information, users’ capacity to identify the materials they want, and policies. The genebanks’ rates of both acquisition and distribution increased over the last decade. The paper ends on a cautionary note concerning the potential of unresolved tensions regarding access and benefit sharing and digital genomic sequence information to undermine international cooperation to conserve and use PGRFA.
Journal Article
Climate, soil and plant functional types as drivers of global fine-root trait variation
1.Ecosystem functioning relies heavily on belowground processes, which are largely regulated by plant fine-roots and their functional traits. However, our knowledge of fine-root trait distribution relies to date on local- and regional-scale studies with limited numbers of species, growth forms and environmental variation. 2.We compiled a worldwide fine-root trait dataset, featuring 1115 species from contrasting climatic areas, phylogeny and growth forms to test a series of hypotheses pertaining to the influence of plant functional types, soil and climate variables, and the degree of manipulation of plant growing conditions on species fine-root trait variation. Most particularly, we tested the competing hypotheses that fine-root traits typical of faster return on investment would be most strongly associated with conditions of limiting versus favourable soil resource availability. We accounted for both data source and species phylogenetic relatedness. 3.We demonstrate that (1) Climate conditions promoting soil fertility relate negatively to fine-root traits favouring fast soil resource acquisition, with a particularly strong positive effect of temperature on fine-root diameter and negative effect on specific root length (SRL), and a negative effect of rainfall on root nitrogen concentration; (2) Soil bulk density strongly influences species fine-root morphology, by favouring thicker, denser fine-roots; (3) Fine-roots from herbaceous species are on average finer and have higher SRL than those of woody species, and N2-fixing capacity positively relates to root nitrogen; (4) Plants growing in pots have higher SRL than those grown in the field. 4.Synthesis. This study reveals both the large variation in fine-root traits encountered globally and the relevance of several key plant functional types and soil and climate variables for explaining a substantial part of this variation. Climate, particularly temperature, and plant functional types were the two strongest predictors of fine-root trait variation. High trait variation occurred at local scales, suggesting that wide-ranging belowground resource economics strategies are viable within most climatic areas and soil conditions.
Journal Article
Root exudation rate as functional trait involved in plant nutrient‐use strategy classification
Plants adopt a variety of life history strategies to succeed in the Earth's diverse environments. Using functional traits which are defined as “morphological, biochemical, physiological, or phonological” characteristics measurable at the individual level, plants are classified according to their species’ adaptative strategies, more than their taxonomy, from fast growing plant species to slower‐growing conservative species. These different strategies probably influence the input and output of carbon (C)‐resources, from the assimilation of carbon by photosynthesis to its release in the rhizosphere soil via root exudation. However, while root exudation was known to mediate plant‐microbe interactions in the rhizosphere, it was not used as functional trait until recently. Here, we assess whether root exudate levels are useful plant functional traits in the classification of plant nutrient‐use strategies and classical trait syndromes? For this purpose, we conducted an experiment with six grass species representing along a gradient of plant resource‐use strategies, from conservative species, characterized by low biomass nitrogen (N) concentrations and a long lifespans, to exploitative species, characterized by high rates of photosynthesis and rapid rates of N acquisition. Leaf and root traits were measured for each grass and root exudate rate for each planted soil sample. Classical trait syndromes in plant ecology were found for leaf and root traits, with negative relationships observed between specific leaf area and leaf dry matter content or between specific root length and root dry matter content. However, a new root trait syndrome was also found with root exudation levels correlating with plant resource‐use strategy patterns, specifically, between root exudation rate and root dry matter content. We therefore propose root exudation rate can be used as a key functional trait in plant ecology studies and plant strategy classification. We showed that root exudation levels reflected plant resource‐use strategy patterns. Interestingly, we found a new root trait syndrome between root exudation rate and root traits as root dry matter content. Our results allow us to propose root exudation rate as a key functional trait in plant ecology and plant strategy classification.
Journal Article
Adapting Agriculture to Climate Change: A Synopsis of Coordinated National Crop Wild Relative Seed Collecting Programs across Five Continents
The Adapting Agriculture to Climate Change Project set out to improve the diversity, quantity, and accessibility of germplasm collections of crop wild relatives (CWR). Between 2013 and 2018, partners in 25 countries, heirs to the globetrotting legacy of Nikolai Vavilov, undertook seed collecting expeditions targeting CWR of 28 crops of global significance for agriculture. Here, we describe the implementation of the 25 national collecting programs and present the key results. A total of 4587 unique seed samples from at least 355 CWR taxa were collected, conserved ex situ, safety duplicated in national and international genebanks, and made available through the Multilateral System (MLS) of the International Treaty on Plant Genetic Resources for Food and Agriculture (Plant Treaty). Collections of CWR were made for all 28 targeted crops. Potato and eggplant were the most collected genepools, although the greatest number of primary genepool collections were made for rice. Overall, alfalfa, Bambara groundnut, grass pea and wheat were the genepools for which targets were best achieved. Several of the newly collected samples have already been used in pre-breeding programs to adapt crops to future challenges.
Journal Article
Challenges in implementing plant shoot tip cryopreservation technologies
Cryopreservation is a safe approach for the long-term preservation of plant genetic resources that complements traditional field and in vitro germplasm collections. There are many reports of cryopreservation successes in the literature; however, only a fraction of those methods has been routinely used for long-term conservation. A common problem is the difficulty of transferring technology and validating protocols from one laboratory to another. There are many critical factors involved including: the quality and type of plant materials, pretreatment and preculture conditions, cryopreservation method, cooling, storage and warming conditions, and regrowth assessment methods. In addition, adequate facilities and trained personnel are needed. Herein, we present practical aspects with regard to the challenges in implementing plant shoot tip cryopreservation technologies in cryo-banks.Key messageCryopreservation projects must have clear goals, long-term funding, skilled technical support staff, necessary infrastructure, in addition to well-defined procedures and protocols. All of these factors must be considered and optimized prior to the implementation of a cryopreservation procedure.
Journal Article
What Plant Genetic Resources for Food and Agriculture Are Available under the Plant Treaty and Where Is This Information?
Plant genetic resources for food and agriculture (PGRFA) are the building blocks upon which global food and nutrition security depend and are key to plant breeding for more resistant crops, but how available are they? To understand what PGRFA are available under the mechanisms created by the International Plant Treaty’s access and benefit-sharing, we conducted a comparative analysis of the five largest sources of pooled global data concerning PGRFA, including data conserved by and available to users under the Plant Treaty’s access and benefit-sharing (ABS) mechanism. These data sources were the registry of notification letters maintained by the Plant Treaty Secretariat and four international PGRFA databases: Genesys, European Search Catalogue for Plant Genetic Resources (EURISCO), World Information and Early Warning System on Plant Genetic Resources for Food and Agriculture (WIEWS) and Global Information System on PGRFA (GLIS). Our analysis revealed that a comprehensive and consistent overview of the PGRFA available under the Plant Treaty’s ABS conditions is not available. The GLIS is the most logical longer-term candidate to promote the provision of up-to-date and comprehensive snapshots of what PGRFA the Plant Treaty framework make available, primarily because it provides a mechanism (digital objective identifiers) to link together information from a range of information sources, including Genesys, WIEWS and EUEISCO and other online publications, and data sets concerning PGRFA in the multilateral system. Successful adoption of the GLIS could be promoted by creating novel incentives endorsed by the Governing Body to encourage Contracting Parties, Article 15 organizations, and individuals to share information about the materials they are making available under the Plant Treaty, in addition to the capacity-building for some GLIS users that is also necessary. These incentives could be included among the package of measures currently being considered by the Plant Treaty’s Working Group to Enhance the Functioning of the Multilateral System of Access and Benefit-Sharing.
Journal Article