Crop Genebank Knowledge Base

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Terms used on the Crop Genebank Knowledge Base.

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Term Definition
Directed Amplification of Minisatellite-region DNA

A technique related to ISSR analysis that uses a single primer containing only the core motif of a minisatellite.


The process of supplying samples of germplasm accessions to breeders and other users.

Diversity study

The use of morphological or molecular markers to assess the diversity of a set of related accessions.

DNA Amplification Fingerprinting

(DAF) A variant of the RAPD technique that uses shorter 5???8 bp primers to generate a larger number of fragments.

DNA chip

Also known as microarray. A high throughput screening technique based on the hybridization between oligonucleotide probes and either DNA or mRNA carried out on miniaturized reaction surfaces.

DNA sequencing

The determination of the sequence of deoxynucleotides in DNA fragments.


The organized collection of records that describe structure purpose operation maintenance and data requirements.


The evolution of plants or animals either naturally or through artificial selection

Domestication syndrome

A set of similar traits that confer adaptation to the cultivated environment. Specific traits will vary among different crops.

Dominant marker

A genetic marker for which only a single allele is expressed when multiple alleles are co-occurring in an individual.

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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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