Identification of QTL for sugar-related traits in a sweet x grain sorghum (Sorghum bicolor L. Moench) recombinant inbred population

Ritter, KB, Jordan, DR, Chapman, SC, Godwin, ID, Mace, ES and McIntyre, CL (2008) Identification of QTL for sugar-related traits in a sweet x grain sorghum (Sorghum bicolor L. Moench) recombinant inbred population. Molecular Breeding, 22 3: 367-384. doi:10.1007/s11032-008-9182-6


Author Ritter, KB
Jordan, DR
Chapman, SC
Godwin, ID
Mace, ES
McIntyre, CL
Title Identification of QTL for sugar-related traits in a sweet x grain sorghum (Sorghum bicolor L. Moench) recombinant inbred population
Formatted title
Identification of QTL for sugar-related traits in a sweet X grain sorghum (Sorghum bicolor L. Moench) recombinant inbred population
Journal name Molecular Breeding   Check publisher's open access policy
ISSN 1380-3743
Publication date 2008-10-01
Year available 2008
Sub-type Article (original research)
DOI 10.1007/s11032-008-9182-6
Open Access Status
Volume 22
Issue 3
Start page 367
End page 384
Total pages 18
Place of publication Dordrecht, The Netherlands
Publisher Springer Netherlands
Language eng
Subject C1
820404 Sorghum
070305 Crop and Pasture Improvement (Selection and Breeding)
Abstract QTL for stem sugar-related and other agronomic traits were identified in a converted sweet (R9188) × grain (R9403463-2-1) sorghum population. QTL analyses were conducted using phenotypic data for 11 traits measured in two field experiments and a genetic map comprising 228 SSR and AFLP markers grouped into 16 linkage groups, of which 11 could be assigned to the 10 sorghum chromosomes (SBI-01 to SBI-10). QTL were identified for all traits and were generally co-located to five locations (SBI-01, SBI-03, SBI-05, SBI-06 and SBI-10). QTL alleles from R9188 were detected for increased sucrose content and sugar content on SBI-01, SBI-05 and SBI-06. R9188 also contributed QTL alleles for increased Brix on SBI-05 and SBI-06, and increased sugar content on SBI-03. QTL alleles from R9403463-2-1 were found for increased sucrose content and sucrose yield on SBI-10, and increased glucose content on SBI-07. QTL alleles for increased height, later flowering and greater total dry matter yield were located on SBI-01 of R9403463-2-1, and SBI-06 of R9188. QTL alleles for increased grain yield from both R9403463-2-1 and R9188 were found on SBI-03. As an increase in stem sugars is an important objective in sweet sorghum breeding, the QTL identified in this study could be further investigated for use in marker-assisted selection of sweet sorghum.
Keyword sweet sorghum
sugar
AFLP
SSR
QTL
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes SpringerLink Date Sunday, April 20, 2008

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
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Created: Thu, 09 Apr 2009, 22:24:45 EST by Emma Cushworth on behalf of School of Land, Crop and Food Sciences