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Ready to go into phenotyping: The wheat reference samples

By: Dreisigacker, S.
Contributor(s): Balfourier, F [coaut.] | Franco, J | Nachit, M.M [coaut.] | Warburton, M [coaut.] | Zaharieva, M [coaut.] | Payne, T.S | Zhang, X.
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: 2009Description: p. 126.Summary: CIMMYT and its partners have committed to collect and complete the structural characterization of diversity of the composite set in wheat. The genotypic data production of the composite set was completed in 2007 for up to 44 SSRs on a total number of 2932 entries. In order to streamline the process of evaluating genetic diversity, international reference samples of 372 spring bread wheat entries, 96 winter wheat entries, and 96 durum wheat entries were assembled based on the neutral marker information. To build the reference samples the D strategy was applied. The D-strategy has proven to maximise the representativeness of the genetic diversity in subsets of entries by including ?generalists? alleles giving the advantage of minimizing population structure. The reference samples will be useful for genetic diversity studies such as SNP discovery and phenotyping agronomic traits in wheat germplasm and for analyzing the linkage disequilibrium and the association of complex traits. Single plant seed of each accession has been collected and will be deposited in the CIMMYT Wellhausen Genetic Resource Centre and are available upon request and for collaborative projects. We want to introduce the three reference samples, present their population structure and genetic diversity.Collection: CIMMYT Staff Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Staff Publications Collection CIS-5824 (Browse shelf) Available
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Abstract only

CIMMYT and its partners have committed to collect and complete the structural characterization of diversity of the composite set in wheat. The genotypic data production of the composite set was completed in 2007 for up to 44 SSRs on a total number of 2932 entries. In order to streamline the process of evaluating genetic diversity, international reference samples of 372 spring bread wheat entries, 96 winter wheat entries, and 96 durum wheat entries were assembled based on the neutral marker information. To build the reference samples the D strategy was applied. The D-strategy has proven to maximise the representativeness of the genetic diversity in subsets of entries by including ?generalists? alleles giving the advantage of minimizing population structure. The reference samples will be useful for genetic diversity studies such as SNP discovery and phenotyping agronomic traits in wheat germplasm and for analyzing the linkage disequilibrium and the association of complex traits. Single plant seed of each accession has been collected and will be deposited in the CIMMYT Wellhausen Genetic Resource Centre and are available upon request and for collaborative projects. We want to introduce the three reference samples, present their population structure and genetic diversity.

Genetic Resources Program|Global Wheat Program|Global Maize Program

English

Lucia Segura

INT2692|INT3400|INT1422

CIMMYT Staff Publications Collection

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