A comprehensive collection and regeneration strategy for ex situ conservation

摘要: Because the facilities in genebanks are likely to be quite limited, it will usually possible raise only small populations of plants when producing fresh seed. These need large enough, however, reducethe effects drift on erosion genetical variation an acceptable level. Calculations show that a sample size 12 is probably sufficient meet this objective provided biparental mating procedure used toproduce It argued for conservation, there little point collecting more seed from source species question than can handled regenerating If regarded asthe unit minimum gene bank should determine collected each population species. Provided product and number ofpopulations which material not less 172, strategy ensure conservation all or very nearly polymorphic genes segregating A critical analysis currentregeneration procedures shows these inefficient much lost almost as soon captured. Lastly, shown some recent criticisms collection proposed earlierpapers misplaced.