scholarly journals Creation of a Network of Seed Sites for In-Situ Conservation of Medicinal and Aromatic Plant Genetic Resources in Lithuania

Botanica ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 87-97 ◽  
Author(s):  
Juozas Labokas ◽  
Birutė Karpavičienė

AbstractTwenty six seed (genetic) sites were established for long-term in-situ conservation of medicinal and aromatic plant (MAP) genetic resources in Lithuania over the period 2006–2017. The sites vary in size from 0.4 to 38.0 ha with an average of 7.2 ha. Most of the sites (73%) occur in the existing protected areas. They represent 10 of 22 physical geographical areas of Lithuania and accommodate 120 priority MAP species, which is about 89% of the national priority list. Prioritization of MAP species was based on the monographs of European Pharmacopoeia, European Medicines Agency, World Health Organization as well as German Phytotherapeutic Monographs and other regional and national medicinal plant references. A concept was followed of the dual function and perception of food as medicine, and, vice versa, an approach based on a co-evolutionary relationship between human food and medicine. It was established that only 46 priority species, or 34% of the national priority list, were represented by five and more populations, which is considered as minimum for long-term in-situ conservation. The future conservation planning efforts should focus on at least 15 unrepresented species, 49 species represented at 1–2 sites each and 25 species represented at 3–4 sites each. The MAP site network should expand by covering preferably the remaining 12 physical geographical areas of the country.

Author(s):  
Jane Muthoni ◽  
Hussein Shimelis ◽  
Rob Melis

Plant genetic resources (PGRs) play an important role in agriculture, environment protection, cultural property and trade; they need to be conserved. There are two fundamental approaches for the conservation of PGRs: in situ and ex situ. In situ conservation is the conservation of ecosystems and natural habitats and the maintenance and recovery of viable populations of species in their natural surroundings. Ex situ preservation is the storage of seeds or plant materials under artificial conditions to maintain their long term viability and availability for use. Genebanks employ seed storage, field collections of living plants and in vitro storage (tissue culture or cryopreservation) for ex situ preservation of PGR. Storage of orthodox seeds, which are tolerant to low moisture content and low temperatures at appropriate temperature and humidity, is the most convenient ex situ conservation method. Plants that produce recalcitrant seeds or non-viable seeds are conserved in field genebanks as well as in-vitro in slow growth media for short-to-medium term and cryopreservation in liquid nitrogen at -1960C for long-term periods. Cryopreservation is very expensive and needs trained personnel; this could explain why this method is rarely used for conservation of plant genetic resources in most developing countries. Potato tubers are bulky and highly perishable; the crop is generally conserved as clones either in field genebanks (with annual replanting), in-vitro conservation in slow growth media for short-to-medium term and cryopreservation for long term. Field genebanks are expensive to maintain and the crop is exposed to many dangers; hence, cryopreservation is the only feasible method for long term conservation. However, given the high cost of cryopreservation, long-term conservation of potato genetic resources is poorly developed in most resource-poor countries leading to high rates of genetic erosion. This paper looks into the various methods that that can be applied to conserve potato genetic resources and the status of conservation of potatoes in major genebanks and some countries.


Author(s):  
S.V. Chernobai ◽  
V.K. Riabchun ◽  
T.B. Kapustina ◽  
V.S. Melnyk ◽  
O.E. Shchechenko

Goal. To build up a spring triticale genetic bank to provide breeding, scientific and educational institutions with initial material and to preserve the existing diversity. To update the database of accessions with a set of valuable economic and morphological features. Results and discussion. The methodology and results of the collection formation and evaluation of spring triticale accessions in the National Center for Plant Genetic Resources of Ukraine of Plant Production Institute nd. a V. Ya. Yuriev are presented. The formed collection includes 1,935 accessions from 27 countries: 42 varieties and 1,478 breeding lines from Ukraine, 92 varieties and 248 lines from foreign countries and also 75 genetic lines. The collection was formed by major valuable economic features (plant height, growing season length, spike threshing, yield, 1000-grain weight, disease resistance, technological properties, etc.). Accessions with the majority of morpho-biological and valuable economic features were selected. All the accessions in the collection are certificated. 1,762 accessions were packed for storage into the National Depository; 1,507 of them were packed for long-term storage. Conclusions. The gene pool of spring triticale from the collection of the Gene Bank of Plants of Ukraine is widely used for breeding. This allows conducting hybridization of genetically and ecologically remote forms with various expressions of features and obtaining whole new breeding material. Involvement of collection accessions in breeding allows generating new genetic sources of valuable economic features.


Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2165
Author(s):  
Theo van Hintum ◽  
Johannes M. M. Engels ◽  
Lorenzo Maggioni

Europe is very active in terms of conserving plant genetic resources, with hundreds of genebanks and thousands of dedicated people involved. However, the resulting infrastructure is, along with being very expensive, far from efficient and not very reliable. In this opinion paper, the authors describe how this situation arose, and why the European Cooperative Programme for Plant Genetic Resources (ECPGR), the collaborative umbrella organization of the European countries involved, has not been able to improve this situation so far significantly. The principles of the decentralized virtual genebank (AEGIS) are described, and an analysis is made of the reasons for its lack of success. Possible changes for making AEGIS a success, or at least steps in the right direction, are proposed. These changes center around the creation of a system of certified genebanks with proper quality management, guaranteeing the long-term conservation of, and immediate access to the plant genetic resources conserved in it.


2002 ◽  
Vol 53 (8) ◽  
pp. 865 ◽  
Author(s):  
S. S. Quisenberry ◽  
S. L. Clement

Insect and mite damage accounts for a significant level (30−70%) of total crop production losses. Conservation and use of plant genetic resources are required to endow crops with pest resistance, as well as to enhance crop yields and nutritional qualities. Advancements in molecular genetic technologies have the potential to facilitate the introgression of insect resistance genes from conserved and unadapted germplasm into cultivated crops. Long−term food security and the sustainability of agricultural productivity worldwide can be enhanced with the conservation and use of global plant genetic resources.


2003 ◽  
Vol 19 (4) ◽  
pp. 509-517 ◽  
Author(s):  
K. Hammer ◽  
Th. Gladis ◽  
A. Diederichsen

Author(s):  
Robert D. Mohr ◽  
Cindy Cunningham ◽  
Shrawantee Saha ◽  
Marco Vincenzi

Abstract We review 1982–1984 articles identifying Superfund sites in three national newspapers. Articles almost never identify the race of nearby residents. Based on sites receiving disproportionate coverage, readers might conclude that Superfund generally affected white, working-class families, but results do not support this narrative. In a pooled sample, neither race nor income predicts the number of times a site gets mentioned. When the sample is partitioned by newspaper or by each newspaper's coverage of nearby sites, a positive relationship emerges between the proportion of Hispanic or nonwhite residents and the number of articles about a site. We discuss this apparent contradiction.


2004 ◽  
Vol 55 (3) ◽  
pp. 307 ◽  
Author(s):  
Charles Lawson

A key controversy in negotiating the International Treaty on Plant Genetic Resources for Food and Agriculture, and the likely long-term effectiveness of the agreement, is the way in which the intellectual property provisions are interpreted and applied to the key genetic resources forming the Consultative Group on International Agricultural Research (CGIAR) system of International Agricultural Research Centres' (IARC) collections. This paper reviews the intellectual property provisions in the treaty and examines the likely consequences from patenting under the Patents Act 1990 over materials derived from these collections. The consequence is argued to be significant and, over time, these practices are likely to deplete the usefulness of these collections and undermine the relevance of the treaty. The paper concludes that Australia's interests might best be served by arguing that access to these collections, and the other materials under the treaty, be subject to a non-exclusive, royalty free licence for any use of the derived materials to develop useful new plant varieties.


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