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Taxon:  Pyrus communis L. subsp. caucasica (Fed.) Browicz



Summary
Genus:
Pyrus
Section:
Pyrus
Family:
Rosaceae
Subfamily:
Amygdaloideae
Tribe:
Maleae
Subtribe:
Malinae
Nomen number:
313573
Place of publication:
P. Davis, Flora of Turkey 4:163. 1972
Verified:
07/08/2011 ARS Systematic Botanists.
Accessions:
0 (0  active, 0  available) in National Plant Germplasm System. 
Other conspecific taxa
Pyrus communis L. (2 active accession[s])
Pyrus communis L. subsp. communis (0 active accession[s])
Pyrus communis L. subsp. pyraster (L.) Ehrh. (0 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Basionym
Pyrus caucasica Fed.

No images
Reference(s)
  1. Asanidze, Z. et al. 2011. Comparative morphometric study and relationships between the Caucasian species of wild pear (Pyrus spp.) and local cultivars in Georgia. Flora 206:974-986. Note: as Pyrus caucasica
  2. Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). http://www.emplantbase.org/home.html
  3. Fischer, M. 2009. Pear breeding. Breeding plantation tree crops: temperate species. 2009 135-160. Note: as Pyrus caucasica is mentioned as one of the probable ancestors of the domesticated pear
  4. Pyrus Crop Germplasm Committee. 2004. Pyrus Crop Germplasm Committee report and genetic vulnerability statement. Crop Germplasm Committee reports. National Plant Germplasm System, USDA-ARS. 1-31. http://www.ars-grin.gov/npgs/cgclist.html
  5. Volk, G. M. et al. 2006. Diversity of wild Pyrus communis based on microsatellite analyses. J. Amer. Soc. Hort. Sci. 131:408-417.
  6. Westwood, M. N. 1999. pers. comm. via e-mail from K. Hummer on 12 Oct Note: one of progenitors of P. communis L.
  7. Yamamoto, T. & E. Chevreau. 2009. Pear genomics. Genetics and genomics of Rosaceae. 2009 163-186. Note: this study cited both Pyrus caucasica and P. communis subsp. caucasica
Common names
Distribution
Native
Asia-Temperate
  • CAUCASUS: Russian Federation-Ciscaucasia [Ciscaucasia], Armenia, Azerbaijan, Georgia, Russian Federation [Dagestan]
  • WESTERN ASIA: Turkey
Europe
  • EAST EUROPE: Ukraine (incl. Krym)
Economic Uses


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.