GrainGenes Reference Report: JHR-80-234
Reference
JHR-80-234
Title
Linkage drag in backcross breeding in barley.
Journal
Journal of Heredity
Year
1989
Volume
80
Pages
234-239
Author
Brown AHD Lawrence GJ Jenkin M Douglass J Gregory E
Abstract
Linkage estimates among 15 isoenzyme and three seed protein loci in barley (Hordeum vulgare) placed two loci on chromosome 1, three on chromosome 4, eight on chromosome 5, and five on chromsome 6. The markers provided a test of the theory of segmental lengths and residual background genome retention under backcrossing. The backcross lines were from the cultivar Clipper, and each was homozygous for an allozyme variant introduced from wild barley (H. spontaneum). The lines were unselected for their genotype at the hordein loci Hor1, Hor2, and Hor3, all on chromosome 5. Among 68 lines selected for allozyme markers not on chromosome 5, 12 still possessed H. spontaneum hordeins at one or more of the three hordein loci, whereas among eight line selected for chromosome 5 markers, four possessed H. spontaneum hordeins.
Gene
Adh3 (Hordeum) Hxk (Hordeum)
Keyword
[ Hide all but 1 of 6 ] chromosomal analysis crop industry enzyme loci Hordeum vulgare plant breeding protein loci
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: JHR-80-234
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||