Management of Germplasm Collections and Enhancing Their Use by Mini Core and Molecular Approaches
Series/Report No.
農業試驗所特刊; 135
Start Page
35
End Page
70
ISBN
978-986-01-6785-6
Date Issued
2008-12
Date
2008-12
Author(s)
HD Upadhyaya
CLL Gowda
DVSSR Sastry
Abstract
Genetic resources provide basic material for selection and improvement through breeding to ensure food security needs of the world’s rapidly raising population. Conservation and utilization of plant genetic resources are important components of ex situ collections. The establishment of large, germplasm collections at ICRISAT genebank, Patancheru, India, was based on donations from existing collections. This was augmented by targeted germplasm collection missions. Majority of them are orthodox seed producing accessions. The conserved germplasm accessions have been characterized for important morpho-agronomic characters and germplasm seed samples are distributed to bonafide researchers for utilization in crop improvement programs all over the world. Exiguous use of germplasm has been observed in breeding programs, mainly due to lack of information on economic traits. Core collections and mini core collections have been developed to enhance use of germplasm in breeding programs globally. The core and mini core collections were evaluated to identify genetically diverse trait specific germplasm for resistance to abiotic and biotic stresses and for agronomic traits for use in breeding programs to develop broad based cultivars. Molecular characterization of composite sets of germplasm, that include core or mini core collections, have helped in understanding genetic diversity and population structures in each species. Genotype based reference sets of genetically diverse 300 accessions have been established. Seeds of mini core collection and reference sets are available for use by the global research community.
Event(s)
Proceedings of the APEC-ATCWG Workshop
Publisher
農業試驗所
Type
book part
File(s)![Thumbnail Image]()
Loading...
Name
publication_no135_08.pdf
Size
2.08 MB
Format
Adobe PDF
Checksum
(MD5):d39afd11b5ae54710eb33b0ae4fcfd56