Terms used on the Crop Genebank Knowledge Base.
| Term | Definition |
|---|---|
| Bar-coding |
A computerized coding system that uses a printed pattern or bars on labels to identify germplasm accessions. Barcodes are read by optically scanning the printed pattern and using a computer program to decode the pattern. |
| Base collection |
A collection of germplasm that is conserved in long-term secure storage and is not used as a routine distribution source. Seed is usually stored at sub-zero temperatures and low moisture content. |
| Base unit |
The number of seeds needed to ensure the successful implementation of a procedure such as registration or regeneration. |
| Basic Local Alignment Search Tool |
(BLAST) A bioinformatics tool to find matches between a DNA sequence and known sequences stored in databases. |
| Bayesian analysis |
A statistical approach for constructing phylogenetic trees related to maximum likelihood that operates on a priori weighting factors and probabilities (see maximum likelihood parsimony). |
| Biodiversity |
The totality of genes species and ecosystems in a given region be it a microhabitat or the world. Also called biological diversity. |
| Bioversity |
Bioversity International (website) |
| Bootstrap analysis |
A method in cladistic analysis to infer the ???strength??? or ???confidence??? of a branch on a phylogenetic tree obtained by generating trees many times from a sample distribution of characters. Bootstrap values theoretically can vary from 0% (poor support) to 100% (excellent support). |
| Breeding |
The propagation and genetic manipulation by hybridization or deliberate self-crossing of plants for the purpose of selecting improved offspring. |
| Breeding line |
A group of identical pure-breeding diploid or polyploid organisms that are distinguished from other individuals of the same species by a unique phenotype and genotype. |
Glossary open source software by M. Brampton