The effect of tropical sorghum conversion and inbred development on genome diversity as revealed by high-resolution genotyping

Klein, Robert R., Mullet, John E., Jordan, David R., Miller, Frederick R., Rooney, William L., Menz, Monica A., Franks, Cleve D. and Klein, Patricia E. (2008) The effect of tropical sorghum conversion and inbred development on genome diversity as revealed by high-resolution genotyping. Crop Science, 48 Supplement_1: S12-S26. doi:10.2135/cropsci2007.06.0319tpg


Author Klein, Robert R.
Mullet, John E.
Jordan, David R.
Miller, Frederick R.
Rooney, William L.
Menz, Monica A.
Franks, Cleve D.
Klein, Patricia E.
Title The effect of tropical sorghum conversion and inbred development on genome diversity as revealed by high-resolution genotyping
Journal name Crop Science   Check publisher's open access policy
ISSN 0011-183X
1435-0653
Publication date 2008-03
Sub-type Article (original research)
DOI 10.2135/cropsci2007.06.0319tpg
Volume 48
Issue Supplement_1
Start page S12
End page S26
Total pages 15
Place of publication Madison, WI, United States
Publisher Crop Science Society of America
Language eng
Formatted abstract
Graphical genotypes have been generated for a set of sorghum [Sorghum bicolor (L.) Moench] germplasm, which includes selected public inbreds, germplasm from the world collection, and ancestral lines central to the early breeding efforts of sorghum. We have focused our present examination on sorghum chromosome SBI-06, which encodes ma 1 and dw 2, two genes critical to sorghum improvement dating to the original introduction of tropical sorghums into the United States. Utilizing the pedigree relationship between sorghum cultivars, the patterns of genetic variation were detailed within segmental chromosomal blocks of SBI-06. Segmental genomic blocks were traced back through multiple generations of a pedigree, often back to founder tropical accessions. The graphical genotypes reveal genomic signatures of historical breeding decisions, especially evidence of directional selection during the conversion of tropical accessions to temperate adaptation. This information is central to our efforts to understand those crop improvement processes that have shaped the genomic diversity of elite sorghum cultivars.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
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