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GrainGenes Reference Report: CRS-41-1228

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Reference	CRS-41-1228
Title	Allelic shifts and quantitative trait loci in a recurrent selection population of oat
Journal	Crop Science
Year	2001
Volume	41
Pages	1228-1234
Author	De Koeyer DL Phillips RL Stuthman DD
Abstract	Summary: Recurrent selection to enhance grain yield of oat (Avena sativa L.) has been ongoing at the University of Minnesota since 1968. Grain yield was increased by 21.7% after seven cycles of recurrent selection. The objectives of this study were to monitor the long-term genetic changes in this recurrent selection population using restriction fragment length polymorphisms (RFLPs). Ninety-seven RFLP loci detected by 73 cDNA clones were used to evaluate changes in allelic frequencies during the recurrent selection process. Significant allelic shifts were detected in eight genomic regions. Four linkage groups were studied in greater detail to localize putative quantitative trait loci (QTL). In total, seven primary or major QTL regions were identified using allelic shift, correlation, and single-factor analysis of variance (ANOVA) data. Six of these regions were associated with grain yield and one was associated with plant height. Thirty-three other minor QTL were detected using correlation and/or ANOVA data. Multiple regression models for grain yield, heading date, and plant height indicated that associated markers accounted for 30, 38, and 27% of the phenotypic variance, respectively. Our results indicate that we have identified genomic regions containing favorable alleles selected during the recurrent selection process. Thirteen of the 40 QTL identified for the individual traits in the recurrent selection population were previously identified in the Kanota x Ogle recombinant inbred mapping population. Therefore, these QTL may be generally important in oat
External Databases	http://crop.scijournals.org/cgi/content/abstract/41/4/1228
Map Data	Oat-2001-UMN-RecSel
QTL	[ Hide all but 1 of 40 ] QHT.UMN-RecSel_2 QHD.UMN-RecSel_3 QHT.UMN-RecSel_5 QYD.UMN-RecSel_5 QYD.UMN-RecSel_6a QHD.UMN-RecSel_6b QHT.UMN-RecSel_6b QYD.UMN-RecSel_6b QHD.UMN-RecSel_6c QHT.UMN-RecSel_6c QYD.UMN-RecSel_6c QHD.UMN-RecSel_6d QHT.UMN-RecSel_6d QYD.UMN-RecSel_6d QHD.UMN-RecSel_7a QHT.UMN-RecSel_7a QYD.UMN-RecSel_7a QHD.UMN-RecSel_11a QHT.UMN-RecSel_11a QYD.UMN-RecSel_11a QHD.UMN-RecSel_13 QHT.UMN-RecSel_13 QYD.UMN-RecSel_13 QHD.UMN-RecSel_15 QHD.UMN-RecSel_17a QHT.UMN-RecSel_17a QYD.UMN-RecSel_17a QYD.UMN-RecSel_22 QHT.UMN-RecSel_24 QHD.UMN-RecSel_28 QHT.UMN-RecSel_28 QHT.UMN-RecSel_29 QYD.UMN-RecSel_29 QYD.UMN-RecSel_37 QHT.UMN-RecSel_uk1 QYD.UMN-RecSel_uk1 QHD.UMN-RecSel_uk2 QHD.UMN-RecSel_uk3 QHD.UMN-RecSel_uk4 QHT.UMN-RecSel_uk5
Keyword	7 cycles [ Show all 56 ]

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