Plant Breeding Reviews. Volume 7: The National Plant Germplasm System of the United States. Jules Janick

1990 ◽  
Vol 65 (2) ◽  
pp. 227-227
Keyword(s):  
United States ◽  
Plant Breeding ◽  
The United States ◽  
Plant Germplasm ◽  
National Plant Germplasm System

Corrigendum

2000 ◽  
Vol 135 (1) ◽  
pp. 101-101
Keyword(s):  
United States ◽  
Amino Acid ◽  
Plant Breeding ◽  
Nutritional Quality ◽  
Content Volume ◽  
Amino Acid Content ◽  
The United States ◽  
American Soybean Association ◽  
Nutritional Factors

Clarke, E. J. and Wiseman, J. Developments in plant breeding for improved nutritional quality of soya beans I. Protein and amino acid content. Volume 134, part 2, pp. 111–124.Clarke, E. J. and Wiseman, J. Developments in plant breeding for improved nutritional quality of soya beans II. Anti-nutritional factors. Volume 134, part 2, pp. 125–136.The following was omitted from both papers:ACKNOWLEDGEMENTSThe authors are grateful to the United States Soybean Board/American Soybean Association, Dalgety Feed Ltd., Finn Feed International and Pioneer Hi-Bred International for their support.

scholarly journals Molecular Identification of Malus hupehensis (Tea Crabapple) Accessions Using Simple Sequence Repeats

HortScience ◽  
2001 ◽  
Vol 36 (5) ◽  
pp. 961-966 ◽  
Author(s):  
Laura L. Benson ◽  
Warren F. Lamboy ◽  
Richard H. Zimmerman
Keyword(s):  
Simple Sequence Repeats ◽  
Germplasm Conservation ◽  
The United States ◽  
Ex Situ ◽  
Ploidy Levels ◽  
Plant Germplasm ◽  
Malus Hupehensis ◽  
National Plant Germplasm System ◽  
Simple Sequence ◽  
The U.S

The U.S. National Plant Germplasm System (NPGS) currently holds 36 separate accessions of the `Yichang' clone of Malus hupehensis (Pamp.) Rehd. The `Yichang' clone originally entered the United States in 1908 as seed collected for the Arnold Arboretum by E.H. Wilson near Yichang, Hubei Province, China. The original description of M. hupehensis omits fruit characters, and botanists frequently augment these omissions with descriptions of the `Yichang' clone. Apomixis occurs in Malus, including M. hupehensis, and is strongly associated with elevated ploidy levels. Simple sequence repeats (SSRs) were used to characterize 65 accessions of M. hupehensis. To check for polyploidy, a set of M. hupehensis accessions was evaluated with flow cytometry. The simple sequence repeat phenotypes and ploidy information revealed the `Yichang' clone under various accession names in arboreta. It was neither known nor suspected that the U.S. National Plant Germplasm System held many duplicate accessions of the `Yichang' clone prior to their molecular characterization. Germplasm conservation decisions for Malus species can benefit from an increased knowledge of the genetic variation or lack thereof in naturalized populations and ex situ collections.

The U.S. National Plant Germplasm System

1995 ◽  
Vol 75 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Henry L. Shands
Keyword(s):  
Genetic Resources ◽  
Agricultural Research ◽  
Technical Information ◽  
Seed Storage ◽  
The United States ◽  
Primary Objective ◽  
Hard Copy ◽  
United States Department ◽  
Plant Germplasm ◽  
National Plant Germplasm System

The United States Department of Agriculture's (USDA) Agricultural Research Service (ARS) manages the National Plant Germplasm System (NPGS). The USDA's National Genetic Resources Program was created in 1990, using the NPGS as the model by which other life forms would also be preserved and utilized. While the NPGS is a broadly defined system, ARS has a specific role of acquiring, characterizing, preserving, documenting, and distributing germplasm to scientist users for research and breeding. The NPGS provides genetic resources to users at no cost but with a request to return data to incorporate in the Germplasm Resources Information Network (GRIN) database. The database is available as hard copy, diskette through PC-GRIN, and, for some crops, a CD-ROM disk. Service to users is the primary objective. The NPGS and 40 crop advisory committees exchange technical information on the most important conservation issues. Recent research advances at the National Seed Storage Laboratory provide guidance for storage management of orthodox and desiccation-sensitive seed and vegetative germplasm. Cryopreservation may receive more attention and play a more important role for the vegetative germplasm because improved seed management under conventional refrigerated storage is now possible. Key words: Germplasm, databases, cryopreservation

scholarly journals CROP ADVISORY COMMITTEES: AN ADVISORY COMPONENT OF THE NATIONAL PLANT GERMPLASM SYSTEM

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 647a-647
Author(s):  
Mark A. Bohning ◽  
Allan K. Stoner
Keyword(s):  
Genetic Resources ◽  
Plant Genetic Resources ◽  
Analysis Data ◽  
The United States ◽  
Federal State ◽  
Advisory Committees ◽  
Horticultural Crops ◽  
Plant Germplasm ◽  
The Status ◽  
National Plant Germplasm System

The United States' National Plant Germplasm System (NPGS) is responsible for the acquisition, preservation, evaluation and distribution of plant genetic resources in the form of seed and clonal germplasm. In order to operate more effectively, the NPGS established a network of 40 Crop Advisory Committees (CACs) to provide analysis, data, and advice about germplasm within a crop or group of related crops of current or future economic importance. CACs are composed of Federal, State and industry scientists representing a variety of agricultural disciplines and geographic areas of importance to the crop. The committees are involved in a variety of activities including: 1) Developing crop descriptors for the collection of standardized characteristic and evaluation data, 2) Determining priorities for germplasm acquisition, evaluation and enhancement, 3) Advising curators on maintenance techniques, and 4) Developing special reports on the status of genetic resources for their crop(s). Twenty-four of the CACs are concerned with horticultural crops.

scholarly journals Progress of plant breeding in the United States.

1899 ◽  
Author(s):  
Herbert John Webber ◽  
Ernst Athearn Bessey
Keyword(s):  
United States ◽  
Plant Breeding ◽  
The United States

scholarly journals IMPORTING PLANT GERMPLASM INTO THE UNITED STATES

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 609b-609
Author(s):  
Mary E. Dale
Keyword(s):  
United States ◽  
The United States ◽  
Germplasm Resources ◽  
Plant Materials ◽  
Pests And Diseases ◽  
Plant Pests ◽  
Plant Germplasm ◽  
Other Information ◽  
The Media ◽  
Bare Root

International plant germplasm resources are an invaluable source of information, and bringing viable plant materials into the United States is a necessity for many researchers. Quarantine regulations vary based on the plant pests and pathogens occurring in the country of origin to prevent the introduction of injurious plant pests and diseases. These regulations also depend on the type of germplasm (such as live plant, cuttings, or seeds), size and age of specimen, and the media grown in. Plants in soil are prohibited, while those in agar, or bare root may be allowed to enter. Procedures to follow for bringing plant germplasm of international origin (including CITES species), forms and permits, ports of entry, delays to expect or avoid along with other information on successfully bringing plant germplasm resources into the United States will be discussed.

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