Association mapping for grain quality in a diverse sorghum collection

K-REx Repository

Show simple item record

dc.contributor.author Sukumaran, Sivakumar
dc.contributor.author Xiang, Wenwen
dc.contributor.author Bean, Scott R.
dc.contributor.author Pedersen, Jeffrey F.
dc.contributor.author Kresovich, Stephen
dc.contributor.author Tuinstra, Mitchell R.
dc.contributor.author Tesso, Tesfaye T.
dc.contributor.author Hamblin, Martha T.
dc.contributor.author Yu, Jianming
dc.date.accessioned 2013-03-11T16:41:25Z
dc.date.available 2013-03-11T16:41:25Z
dc.date.issued 2013-03-11
dc.identifier.uri http://hdl.handle.net/2097/15345
dc.description.abstract Knowledge of the genetic bases of grain quality traits will complement plant breeding efforts to improve the end-use value of sorghum [Sorghum bicolor (L.) Moench]. Candidate gene association mapping was used on a diverse panel of 300 sorghum accessions to assess marker–trait associations for 10 grain quality traits measured using the single kernel characterization system (SKCS) and near-infrared reflectance spectroscopy (NIRS). The analysis of the accessions through 1290 genomewide single nucleotide polymorphisms (SNPs) separated the panel into five subpopulations that corresponded to three major sorghum races (durra, kafir, and caudatum), one intermediate race (guinea-caudatum), and one working group (zerazera-caudatum). These subpopulations differed in kernel hardness, acid detergent fiber, and total digestible nutrients. After model testing, association analysis between 333 SNPs in candidate genes and/or loci and grain quality traits resulted in eight significant marker–trait associations. A SNP in starch synthase IIa (SSIIa) gene was associated with kernel hardness (KH) with a likelihood ratio-based R[superscript 2] (R[subscript LR][superscript 2]) value of 0.08, a SNP in starch synthase (SSIIb) gene was associated with starch content with an R[subscript LR][superscript 2] value of 0.10, and a SNP in loci pSB1120 was associated with starch content with an R[subscript LR][superscript 2] value of 0.09. en_US
dc.language.iso en_US en_US
dc.relation.uri https://www.crops.org/publications/tpg/abstracts/5/3/126 en_US
dc.subject Sorghum en_US
dc.subject Gene association mapping en_US
dc.subject Single kernel characterization system en_US
dc.title Association mapping for grain quality in a diverse sorghum collection en_US
dc.type Article (publisher version) en_US
dc.date.published 2012 en_US
dc.citation.doi doi:10.3835/plantgenome2012.07.0016 en_US
dc.citation.epage 135 en_US
dc.citation.issue 3 en_US
dc.citation.jtitle Plant Genome en_US
dc.citation.spage 126 en_US
dc.citation.volume 5 en_US
dc.contributor.authoreid ttesso en_US
dc.contributor.authoreid srbean en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search K-REx


Advanced Search

Browse

My Account








Center for the

Advancement of Digital

Scholarship

118 Hale Library

Manhattan KS 66506


(785) 532-7444

cads@k-state.edu