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sur le développement des zones arides et semi-arides

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United States Department of Agriculture (USDA) 2009

ARID LAND PLANT GENETIC RESOURCES CONSERVATION, EVALUATION, AND INFORMATION MANAGEMENT

Plant Genetic Resources

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : ARID LAND PLANT GENETIC RESOURCES CONSERVATION, EVALUATION, AND INFORMATION MANAGEMENT

Identification : 5302-21000-010-00

Pays : Etats Unis

Durée : Feb 26, 2009 à Mar 13, 2013

Objectif
1)Strategically expand the genetic diversity in selected genebank collections and improve associated information for priority genetic resources of crops, crop varieties, and native plant genetic resources adapted to long-season and/or arid land conditions. 1A) Acquire samples and associated information for Parthenium (Guayule), Lesquerella (bladderpod), Limnanthes (meadow foam), and Simmondsia (jojoba) from selected sites in the United States, Mexico, and Central and South American countries, that will fit current gaps in NPGS collections. 1B) In cooperation with the state and federal governments in the Southwest U.S. and relevant state rare plant societies identify and establish in situ seed collection sites for endemic species of Parthenium, Lesquerella and Limnanthes.
2) In collaboration with other NPGS sites, efficiently and effectively regenerate and conserve priority crops and native plant genetic resources adapted to long-season and/or arid land conditions, and distribute samples and associated information worldwide. 2A) Conserve and distribute 1,583 accessions of oilseed, vegetable, medicinal, industrial crop genetic resources adapted to arid climates, emphasizing Parthenium, Lesquerella, Limnanthes, and Simmondsia. 2B) Continue to regenerate the accessions from other NPGS sites, and clonal and seed propagated accessions for Parlier priority crops, emphasizing accessions with low germination, low seed supply, open-pollinated seed stocks, those lacking security back-up or those designated by the primary NPGS curator as important, and continue to develop new and/or superior regenerations methods. Regenerate 1,000-1,500 accessions per year of Parthenium, Lesquerella, Limnanthes, Simmondsia and other NPGS site species that are in need of new seed or back-up at second sites, emphasizing critical back-ups of Parthenium, Lesquerella and Limnanthes.
3) In collaboration with other NPGS sites, strategically characterize (genotype) and evaluate (phenotype) selected priority crop genetic resources for DNA markers, morphological descriptors, and key agronomic or horticultural traits, and incorporate characterization and evaluation data into the Germplasm Resources Information Network (GRIN) and/or other relevant databases. 3A) With cooperaters, apply newly developed DNA marker data to phylogenetic and genetic diversity analyses of priority crops, especially Parthenium, Limnanthes and Lesquerella. Incorporate characterization data into the GRIN and/or other databases. 3B) Conduct cooperative research to update and apply phenotypic descriptors for priority collections with an emphasis on morphological and horticultural traits, such as key floral, fruit, and seed characteristics as well as characterizing industrial or other value relative to features related to adaptation to arid land conditions.

Présentation : USDA

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