Correction to: In Situ and Ex Situ Conservation of Coconut Genetic Resources

Principles of the conservation of genetic resources of elms (Ulmus spp) do not differ fundamentally from the general principles accepted for the conservation of genetic resources of other common Noble Hardwoods. Efficient conservation can best be achieved through appropriate combination of in situ and ex situ methods, which have distinct advantages. Besides that, ex situ conservation is employed when emergency measures are needed for rare endangered populations and when populations are too small to be managed in situ (e.g. risks of genetic drift and inbreeding). The aim of our research is ex situ conservation of genetic resources of field elm {Ulmus minor Mill) and European white elm (Ulmus laevis Pall) through establishment of field genebanks. Sampling was conducted in one population of field elm and one population of white elm. Plant material (buds) from 8 trees of field elm and 10 trees of white elm was used for in vitro production of clones. Obtained clones will be used for establishment of field genebanks on the experimental estate of the Institute of Lowland Forestry and Environment.

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In Situ and Ex Situ Conservation of Plant Genetic Resources and Traditional Knowledge

Plant Genetic Resources and Traditional Knowledge for Food Security ◽

10.1007/978-981-10-0060-7_8 ◽

2015 ◽

pp. 137-162 ◽

Cited By ~ 6

Author(s):

Deepak Rajpurohit ◽

Tripta Jhang

Keyword(s):

Genetic Resources ◽

Traditional Knowledge ◽

Ex Situ Conservation ◽

Plant Genetic Resources ◽

Ex Situ

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Tree species of concern in New Brunswick, Canada. II. Guidelines for conservation of genetic resources

The Forestry Chronicle ◽

10.5558/tfc83402-3 ◽

2007 ◽

Vol 83 (3) ◽

pp. 402-407

Author(s):

J A Loo ◽

T L Beardmore ◽

J D Simpson ◽

D A McPhee

Keyword(s):

New Brunswick ◽

Genetic Resources ◽

Tree Species ◽

Ex Situ Conservation ◽

Ex Situ ◽

Gene Conservation ◽

American Beech ◽

Bur Oak ◽

Butternut Canker

Guidelines were developed by the New Brunswick Forest Gene Conservation Working Group for conserving genetic resources of four native tree species in New Brunswick. Gene conservation guidelines for three of these species aim to maintain sufficient gene pools of known or putatively resistant stock to retain or develop the potential for restoration. Natural populations of American beech (Fagus grandifolia) are known to have genotypes resistant to the beech scale at low frequencies. Gene conservation approaches include in situ and ex situ measures, including resistance breeding. White elm (Ulmus americana) demonstrates a degree of resistance to Dutch elm disease (DED), and will benefit from a mixture of in situ and ex situ conservation measures. Resistance to butternut canker has not yet been demonstrated in populations of butternut (Juglans cinerea), but ex situ conservation of putatively resistant genotypes will be of increasing importance as the frequency of butternut canker escalates. Bur oak (Quercus macrocarpa), threatened by small population size, habitat loss, and ongoing development, requires primarily in situ conservation and restoration efforts. Key words: American beech, bur oak, butternut, disease resistance, ex situ, gene conservation guidelines, genetic resources, in situ, restoration, white elm

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Organization and Management of Conservation Programs and Research in Domestic Animal Genetic Resources

Diversity ◽

10.3390/d11120235 ◽

2019 ◽

Vol 11 (12) ◽

pp. 235 ◽

Cited By ~ 2

Author(s):

Juan Vicente Delgado Bermejo ◽

María Amparo Martínez Martínez ◽

Guadalupe Rodríguez Galván ◽

Angélika Stemmer ◽

Francisco Javier Navas González ◽

...

Keyword(s):

Genetic Resources ◽

Latin American ◽

Ex Situ Conservation ◽

In Situ Conservation ◽

Domestic Animal ◽

Ex Situ ◽

Term Survival ◽

Animal Genetic Resources ◽

Domestic Animal Genetic Resources

Creating national committees for domestic animal genetic resources within genetic resource national commissions is recommended to organize in situ and ex situ conservation initiatives. In situ conservation is a high priority because it retains traditional zootechnical contexts and locations to ensure the long-term survival of breeds. In situ actions can be based on subsidies, technical support, structure creation, or trademark definition. Provisional or permanent relocation of breeds may prevent immediate extinction when catastrophes, epizootics, or social conflicts compromise in situ conservation. Ex situ in vivo (animal preservation in rescue or quarantine centers) and in vitro methods (germplasm, tissues/cells, DNA/genes storage) are also potential options. Alert systems must detect emergencies and summon the national committee to implement appropriate procedures. Ex situ coordinated centers must be prepared to permanently or provisionally receive extremely endangered collections. National germplasm banks must maintain sufficient samples of national breeds (duplicated) in their collections to restore extinct populations at levels that guarantee the survival of biodiversity. A conservation management survey, describing national and international governmental and non-governmental structures, was developed. Conservation research initiatives for international domestic animal genetic resources from consortia centralize the efforts of studies on molecular, genomic or geo-evolutionary breed characterization, breed distinction, and functional gene identification. Several consortia also consider ex situ conservation relying on socioeconomic or cultural aspects. The CONBIAND network (Conservation for the Biodiversity of Local Domestic Animals for Sustainable Rural Development) exemplifies conservation efficiency maximization in a low-funding setting, integrating several Latin American consortia with international cooperation where limited human, material, and economic resources are available.

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Ex-situ conservation of medicinal plant genetic resources managed by national agrobiodiversity center of Korea

Planta Medica ◽

10.1055/s-0032-1320321 ◽

2012 ◽

Vol 78 (11) ◽

Author(s):

JS Sung ◽

CW Jeong ◽

YY Lee ◽

HS Lee ◽

YA Jeon ◽

...

Keyword(s):

Medicinal Plant ◽

Genetic Resources ◽

Ex Situ Conservation ◽

Plant Genetic Resources ◽

Ex Situ

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Status of the Ex Situ and In Situ Conservation of Brazilian Crop Wild Relatives of Rice, Potato, Sweet Potato, and Finger Millet: Filling the Gaps of Germplasm Collections

Agronomy ◽

10.3390/agronomy11040638 ◽

2021 ◽

Vol 11 (4) ◽

pp. 638

Author(s):

Marcelo B. Medeiros ◽

José F. M. Valls ◽

Aluana G. Abreu ◽

Gustavo Heiden ◽

Suelma Ribeiro-Silva ◽

...

Keyword(s):

Finger Millet ◽

Ex Situ Conservation ◽

Gap Analysis ◽

In Situ Conservation ◽

Germplasm Collection ◽

Crop Wild Relatives ◽

Wild Relatives ◽

Ex Situ ◽

The Status

This study presents the status of ex situ and in situ conservation for the crop wild relatives of rice, potato, sweet potato, and finger millet in Brazil, and the subsequent germplasm collection expeditions. This research is part of a global initiative entitled “Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives” supported by the Global Crop Diversity Trust. Species of the primary, secondary, and tertiary gene pools with occurrences reported in Brazil were included: Oryza alta Swallen, O. grandiglumis (Döll) Prod., O. latifolia Desv., O. glumaepatula Steud., Eleusine tristachya (Lam.) Lam., E. indica (L.) Gaertn., Solanum commersonii Dunal, S. chacoense Bitter, Ipomoea grandifolia (Dammer) O’Donell, I. ramosissima (Poir.) Choisy, I. tiliacea (Willd.) Choisy, I. triloba L., and I. cynanchifolia Meisn. The status of the ex situ and in situ conservation of each taxon was assessed using the gap analysis methodology, and the results were used to plan 16 germplasm collection expeditions. Seeds of the collected material were evaluated for viability, and the protocols for seed germination and cryopreservation were tested. The final conservation score, resulting from the gap analysis and including the average of the ex situ and in situ scores, resulted in a classification of medium priority of conservation for all the species, with the exception of I. grandifolia (high priority). The total accessions collected (174) almost doubled the total accessions of these crop wild relatives incorporated in Embrapa’s ex situ conservation system prior to 2015. In addition, accessions for practically absent species were collected for the ex situ conservation system, such as Ipomoea species, Eleusine indica, and Solanum chacoense. The methods used for dormancy breaking and low temperature conservation for the Oryza, Eleusine, and Ipomoea species were promising for the incorporation of accessions in the respective gene banks. The results show the importance of efforts to collect and conserve ex situ crop wild relatives in Brazil based on previous gap analysis. The complementarity with the in situ strategy also appears to be very promising in the country.

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