NGBT Logo Ministère des Affaires Locales et de L'Environnement
Banque Nationale de Gènes

Welcome!
Welcome to the GR Database of The National Genebank of Tunisia.


Taxonomic Information on Cultivated Plants in GRIN-Global


Summary
Introduction
History of GRIN Taxonomy
Scope of GRIN Taxonomy
Scientific Names
Common Names
Economic Importance
Geographical Distribution
Literature References
Special-Purpose Data Sets
Basis of Taxonomic Decisions
Concluding Remarks
Acknowledgements
References Cited
Symbols and Abbreviations
Summary

The National Plant Germplasm System of the Agricultural Research Service, U.S. Department of Agriculture maintains a computer database, the Germplasm Resources Information Network, GRIN-Global, for the management of and as a source of information on its 26 157 germplasm accessions. The taxonomic portion of GRIN-Global provides the classification and nomenclature for these genetic resources and many other economic plants on a worldwide basis. Included in GRIN-Global Taxonomy are scientific names for 27 057 genera (14 331 accepted), 1 375 infragenera (1 316 accepted), and 104 663 species or infraspecies (61 740 accepted) with common names, geographical distributions, literature references, and economic importance. Generally recognized standards for abbreviating authors' names and botanical literature have been adopted in GRIN-Global. The scientific names are verified, in accordance with the international rules of botanical nomenclature, by taxonomists of the National Germplasm Resources Laboratory using available taxonomic literature and consultations with taxonomic specialists. Included in GRIN-Global Taxonomy are federal- and state-regulated noxious weeds and federally and internationally listed threatened and endangered plants. Since 1994, GRIN-Global taxonomic data have been searchable on the Internet.



NGBT Plant Germplasm System Distribution Policy

Plant germplasm is distributed to scientists, educators, producers and other bona fide research and education entities from National genebank of Tunisia active collection sites. The NGBT Curator and/or Research Leader will, in accordance with current NPGS policies and procedures, determine the legitimacy of a request when necessary.

Distributions to fulfill requests for repatriation of subsamples of germplasm collections to a country or community of origin, especially following natural or man-made catastrophes, are considered a high priority.

Although distributions for research, education, and repatriation are of the highest priority, the NPGS also encourages various seed-saver organizations and public gardens to conduct germplasm conservation activities that engage many individuals and groups throughout the country. Elements of the NPGS cooperate with seed-saver organizations and public gardens and may store germplasm for and distribute germplasm to such organizations.

Distribution of germplasm from NPGS collections to fulfill requests from individuals seeking free germplasm strictly for home use is generally considered an inappropriate use of limited resources and conflicts with U.S. Government policy of not competing with commercial enterprises. Requestors can be asked, in an appropriate manner, to justify the use of specific NPGS germplasm instead of suitable commercially available germplasm.

Accessions listed in the Germplasm Resources Information Network (GRIN) database as “not available” due to insufficient or low viability seed and/or scheduled for regeneration will generally not be available for distribution.

Other accessions are listed in GRIN as “not available” because they are not a part of the NPGS collection per se, but are conserved in NPGS genebanks to meet specific needs as described later in the section entitled “Categories of Germplasm Distributed and Availability.” In this category are certain accessions of improved germplasm that are only available from the owner/developer. Other accessions require that specific conditions be met by the requestor before distribution is possible.

NPGS sites will not distribute germplasm internationally when they cannot comply with the importation or quarantine requirements of the recipient country unless the requestor can provide a valid waiver of such requirements.