Crop Genebank Knowledge Base

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Terms used on the Crop Genebank Knowledge Base.

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Term Definition
Ex situ conservation

The conservation of biological diversity outside its natural habitat???in the case of plant genetic resources this may be in seed genebanks in vitro genebanks or as live collections in field genebanks. (cf. In situ conservation)

Exotic libraries

Collections of elite crop lines containing defined genomic regions from wild species to provide pre-breeding material for modern varieties.


The act of searching for genetic diversity in the field.

Expressed Sequence Tag

(EST) A DNA sequence derived from transcribed regions of a genome.


Existing or living at the present time in contrast to extinct (no longer living).

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Sources for this glossary: IPGRI Tech. Bulletin 10: Molecular markers for genebank management and Seed handling in genebanks training course
Glossary open source software by M. Brampton

International Agricultural Research Centres who worked together to make this site possible:
Africa Rice Center | Bioversity International | CIAT | CIMMYT | CIP | ICARDA | ICRISAT | IFPRI | IITA | ILRI | IRRI |

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