Crop Genebank Knowledge Base

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Terms used on the Crop Genebank Knowledge Base.

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Term Definition
Pre-breeding/Pre-competitive breeding

The development of germplasm with a genetically broader base for utilization by breeders such as the introduction of exotic germplasm into a cultivar.

Predictive component of taxonomy

The idea that inferences or predictions can be made from taxonomy.


Any structure with the capacity to give rise to a new plant whether through sexual or asexual (vegetative) reproduction. This includes seeds spores and any part of the vegetative body capable of independent growth if detached from the parent.

Proximity matrices

A numerical measure of similarity (or dissimilarity) among objects used in multivariate analysis as assessed by various formulas.


A nitrogen-containing


A nitrogen-containing


A chemical molecule that is released each time a deoxynucleotide is incorporated to the new DNA strand during pyrosequencing.


A new sequencing method of relatively short DNA templates based on real-time (quantitative) pyrophosphate release.

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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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