GrainGenes Reference Report: CRS-29-551
Reference
CRS-29-551
Title
Genetics of Plant Height Reduction and Panicle Type in Oat
Journal
Crop Science
Year
1989
Volume
29
Pages
551-557
Author
Federizzi LC Qualset CO
Type
Article
Abstract
In oat (Avena sativa L.) utilization of genes for height reduction in cultivars has been limited and development of short-statured genotypes in material with good local adaptation is a plant breeding objective. The inheritance of plant height was examined in field studies in six crosses involving the tall genotype ‘California Red’ (CR, 150 cm), short-statured genotypes ‘OT 207’ (OT, 110 cm) ‘Curt’ (CT, 115 cm), and the dwarf genotypes ‘NC 2469-3’ (NC, 90cm) and ‘Palestine Dwarf’ (PD, 85 cm). The inheritance of panicle type was studied in crosses of genotypes with normal (lax) panicle type (OT and CT) with genotypes with compact panicles (NC PD). Genotypes were proposed on the basis of F2 and F3 segregation data: CR, Dw6+ Dw7+; OT Dw6 Dw7+; NC and PD Dw6+ Dw7; and CT, Dw6+ Dw7a. The Dw6, Dw7, and Dw7a alleles are dominant, partially dominant, and recessive, respectively, to the wild type Dw6+ and Dw7+ alleles in the tall parent CR. The Dw7a allele shows dominance for tallness over Dw7 dwarfing allele. Differences in panicle type were due to one additive gene (C), which was linked (0.08 ± 0.01) to Dw7. Various combinations of Dw6 and Dw7 alleles may be useful in breeding oat cultivars that have appropriate plant height for local conditions.
External Databases
https://acsess.onlinelibrary.wiley.com/doi/abs/10.2135/cropsci1989.0011183X002900030001x
Gene
Dw-7a (Avena) Dw-7 (Avena) Pt-4 (Avena)
Germplasm
Palestine Dwarf (oat) Curt (oat) OT 207 (oat)
Locus
Dw-7 Pt-4
Map Data
Oat-1989-PDxCT Oat-1989-PDxOT
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: CRS-29-551
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||